[
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    "researchQuestion": "Study mining, construction and cooperative interactions in a physical world",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Theme Hospital",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Theme Hospital. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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    "rank": 4,
    "title": "OpenTTD",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Follow cargo from industry to destination; inspect routes, capacity and vehicle feedback",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Transport Tycoon Deluxe",
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    "sourceUrl": "https://www.openttd.org/",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Transport Tycoon Deluxe. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Game engine and required free graphics/content pack are included as separate downloads."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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    "rank": 5,
    "title": "Simutrans",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Trace passenger and freight destinations through a transport network",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Caesar II",
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    "sourceUrl": "https://www.simutrans.com/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Caesar II. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Game engine and required free graphics/content pack are included as separate downloads."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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    "rank": 6,
    "title": "Dwarf Fortress Classic",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study jobs, stockpiles, needs and how a dense simulation exposes its state",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Pharaoh",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/887/Pharaoh.html",
    "sourceUrl": "http://www.bay12games.com/dwarves",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Pharaoh. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
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    "rank": 7,
    "title": "Unciv",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study turn-by-turn city growth, resources and policy feedback",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "SimCity 2000",
    "originalSourceUrl": "http://www.abandonia.com/en/games/15649/SimCity+2000.html",
    "sourceUrl": "https://github.com/yairm210/UnCiv",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for SimCity 2000. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
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    "title": "Sim Tower",
    "group": "Society, production and readable simulation",
    "researchQuestion": "Follow people through a vertical building",
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    "acquisition": {
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    "rank": 9,
    "title": "Tabletop Club",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study manipulation, camera framing and shared tabletop interaction",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Theme Park",
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    "sourceUrl": "https://github.com/drwhut/tabletop-club",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Theme Park. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
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    "rank": 10,
    "title": "Freeciv",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study settlement expansion, production and empire information",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Colonization",
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    "sourceUrl": "http://www.freeciv.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Colonization. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Trace material flow through factories, conveyors and defenses",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Pizza Tycoon",
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    "sourceUrl": "https://mindustrygame.github.io/",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Pizza Tycoon. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires a compatible Java runtime; not installed or launched."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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    "title": "Pioneer",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Follow space trade, station economies and travel navigation",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Patrician, The",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Patrician, The. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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    "rank": 15,
    "title": "MegaGlest",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study harvesting, construction and readable unit orders",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
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    "originalTitle": "Constructor",
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      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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    "researchQuestion": "Connect enclosures, operating costs and visitors",
    "catalogEvidence": "archived-title-url",
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    "title": "Free Enterprise",
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    "researchQuestion": "Study factory layout and workforce management",
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    "researchStatus": "proposed; gameplay not yet analyzed",
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    "title": "Detroit",
    "group": "Society, production and readable simulation",
    "researchQuestion": "Trace design decisions into manufacturing and sales",
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    "sourceUrl": "http://www.abandonia.com/en/games/11909/Detroit.html",
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    "title": "Settlers, The",
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    "researchQuestion": "Compare the original logistics presentation with its sequel",
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    "acquisition": {
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      "editionNote": "Downloaded as Serf City: Life Is Feudal, the US title of The Settlers."
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    "title": "SimCity Classic",
    "group": "Society, production and readable simulation",
    "researchQuestion": "Find the minimum readable city-simulation interface",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/30763/SimCity+Classic.html",
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    "acquisition": {
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    "rank": 22,
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    "rank": 23,
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    "rank": 24,
    "title": "The Powder Toy",
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    "researchQuestion": "Study A free physics sandbox game, capable of simulating many interactions; document actions, feedback and failure/recovery",
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    "originalTitle": "Populous",
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    "rank": 25,
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    "researchQuestion": "Study A re-skinned version of the Geoff Crammond classic: The Sentinel; document actions, feedback and failure/recovery",
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    "originalTitle": "Populous II - Trials of the Olympian Gods",
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      "platform": "Windows / required runtime noted",
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    "rank": 27,
    "title": "Utopia - The Creation of a Nation",
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    "researchQuestion": "Study colony needs and administrative feedback",
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    "rank": 28,
    "title": "Genesia (aka Ultimate Domain)",
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    "researchQuestion": "Study settlement growth and resource allocation",
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    "rank": 29,
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    "researchQuestion": "Connect survival outposts through scarce supplies",
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    "rank": 30,
    "title": "Cataclysm: Dark Days Ahead",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Roguelike in a post-apocalyptic world (with sprite-based graphics); document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Robinsons Requiem",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Robinsons Requiem. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
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    "rank": 31,
    "title": "Wolf",
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    "researchQuestion": "Study animal needs and ecological perspective",
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    "sourceUrl": "http://www.abandonia.com:80/en/games/531/Wolf.html",
    "archiveTimestamp": "20071212235818",
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    "rank": 32,
    "title": "Oregon Trail, The (1992)",
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    "researchQuestion": "Expose travel preparation, setbacks and recovery",
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    "archiveTimestamp": "20080323152503",
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    "acquisition": {
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    "rank": 33,
    "title": "Endless Sky",
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    "researchQuestion": "Study 2D space trading and combat game similar to the classic Escape Velocity series; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Seven Cities of Gold",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Seven Cities of Gold. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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    "rank": 35,
    "title": "Ports of Call",
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    "researchQuestion": "Study shipping decisions and operational interruptions",
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    "archiveTimestamp": "20120730154842",
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    "acquisition": {
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    "rank": 36,
    "title": "Alien Legacy",
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    "archiveTimestamp": "20120804212050",
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    "acquisition": {
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    "rank": 37,
    "title": "Reunion",
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    "researchQuestion": "Study interplanetary production and colony dependencies",
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    "sourceUrl": "http://www.abandonia.com:80/en/games/150/Reunion.html",
    "archiveTimestamp": "20071213213433",
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    "acquisition": {
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  {
    "rank": 38,
    "title": "OpenHV",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study 90s pixelart science-fiction real-time strategy game; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Fragile Allegiance",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/24546/Fragile%20Allegiance.html",
    "sourceUrl": "https://www.openhv.net/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Fragile Allegiance. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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    "rank": 39,
    "title": "Ascendancy",
    "group": "Space, colonies and layered worlds",
    "researchQuestion": "Compare colony management with strategic navigation",
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    "sourceUrl": "http://www.abandonia.com/en/games/10322/Ascendancy.html",
    "archiveTimestamp": "20120730110239",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/ascendancy-2qs",
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  {
    "rank": 40,
    "title": "FreeOrion",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Turn-based space empire and galactic conquest (4X) game; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Master of Orion",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27845/Master+of+Orion.html",
    "sourceUrl": "https://freeorion.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://freeorion.org/",
      "bytes": 191777564,
      "sha256": "7395d0214efad693af3ac41362a50c6891ee27b6f5b12406b319bfba4d4c5fda",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Master of Orion. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
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    "rank": 41,
    "title": "Stars!",
    "group": "Space, colonies and layered worlds",
    "researchQuestion": "Study colony allocation and strategic information density",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/27002/Stars%21.html",
    "archiveTimestamp": "20100223061324",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/stars-9zc",
      "bytes": 1618056,
      "sha256": "aa7d62b22a49ba0145a9cf566fd37515405ce44df8acf3967a73cf37e7109439",
      "platform": "Windows",
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  },
  {
    "rank": 42,
    "title": "The Battle for Wesnoth",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Turn-based singleplayer and multiplayer strategy game with a high fantasy theme; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Master of Magic",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/14158/Master+of+Magic.html",
    "sourceUrl": "https://www.wesnoth.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.wesnoth.org/",
      "bytes": 440965176,
      "sha256": "59073519181f9e0f630cae904348aad62cfaa7d4b8d85583a3011fe998a40aac",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Master of Magic. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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  {
    "rank": 43,
    "title": "Naev",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study 2D action/RPG space game that combines elements from the action, RPG and simulation; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Starflight",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/23478/Starflight.html",
    "sourceUrl": "https://naev.org",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://naev.org",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Starflight. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/naev/naev/releases/download/v0.12.6/naev-0.12.6-win64.exe",
          "bytes": 478253661,
          "sha256": "5ea2debb5b05c854ddb425db99a1b65c289e71c3b6de39a57360b07c1c3e92d8",
          "verification": "source manifest SHA-256"
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      ]
    }
  },
  {
    "rank": 44,
    "title": "OpenTyrian 2000",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Fork of OpenTyrian with support for Tyrian 2000; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Starflight 2: Trade Routes of the Cloud Nebula",
    "originalSourceUrl": "http://www.abandonia.com/en/games/26345/Starflight+2%3A+Trade+Routes+of+the+Cloud+Nebula.html",
    "sourceUrl": "https://github.com/KScl/opentyrian2000",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://github.com/KScl/opentyrian2000",
      "bytes": 5908825,
      "sha256": "27ba01fb3f66c9d3804cef9c4f156159f3dbc68a1d6d00b5c85abef0a2380441",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Starflight 2: Trade Routes of the Cloud Nebula. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/KScl/opentyrian2000/releases/download/v2000.20250408/opentyrian2000-x64-Release.zip",
          "bytes": 857462,
          "sha256": "108fb40369598c2632af43baf7d8a2d8a08703840e07dc0cfa700cbee0d7f56c",
          "verification": "source manifest SHA-256 and ZIP CRC"
        },
        {
          "url": "https://www.camanis.net/tyrian/tyrian2000.zip",
          "bytes": 5051363,
          "sha256": "348bc76e73514e452279b8730cf217daf0f70a282f07b6b94af653d87e921667",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 45,
    "title": "The Ur-Quan Masters",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Space exploration, trade, diplomacy and combat; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Star Control II",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/144/Star%20Control%20II.html",
    "sourceUrl": "https://sc2.sourceforge.net/downloads.php",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://sc2.sourceforge.net/downloads.php",
      "bytes": 13821866,
      "sha256": "0831a04cd0873817b3bbc215d55c30f55400d46f517d2d618f264bd06e8d8108",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Star Control II. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Windows installer and required game content included; optional voice and remix packs not included."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://sourceforge.net/projects/sc2/files/UQM/0.8/uqm-0.8-win32.exe/download",
          "bytes": 2274513,
          "sha256": "ac32d9b2e2ea4e7578aef58fafd3daba105cf96230da7430ebfaca4f13b9bc5a",
          "verification": "File header; locally recorded SHA-256"
        },
        {
          "url": "https://sourceforge.net/projects/sc2/files/UQM/0.8/uqm-0.8.0-content.uqm/download",
          "bytes": 11547353,
          "sha256": "77d75ac25e6fb755a33c4ba3b38a7b7bc41fcbc02896891b0cc9ac9214b72eef",
          "verification": "ZIP CRC; locally recorded SHA-256"
        }
      ]
    }
  },
  {
    "rank": 46,
    "title": "Elite",
    "group": "Space, colonies and layered worlds",
    "researchQuestion": "Study how compact instruments explain a broad simulation",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/113/Elite.html",
    "archiveTimestamp": "20071213002059",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/elite-ao",
      "bytes": 50514,
      "sha256": "5b419c90cb603b1a1d3e9c357293b8f20360af165056207e26cb5154f7a2855b",
      "platform": "DOS",
      "archiveFiles": 2
    }
  },
  {
    "rank": 47,
    "title": "Frontier - First Encounters",
    "group": "Space, colonies and layered worlds",
    "researchQuestion": "Compare travel scale with cockpit information",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/709/Frontier%20-%20First%20Encounters.html",
    "archiveTimestamp": "20080324050744",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/frontier-first-encounters-2b2",
      "bytes": 2431160,
      "sha256": "f085c7cecaac3e047b4aa325869874c32c779f48d9e4692f8c47040f7e0e557c",
      "platform": "DOS",
      "archiveFiles": 73
    }
  },
  {
    "rank": 48,
    "title": "Supremacy - Your Will Be Done",
    "group": "Space, colonies and layered worlds",
    "researchQuestion": "Study colony investment and resource allocation",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/27849/Supremacy+-+Your+Will+Be+Done.html",
    "archiveTimestamp": "20100828221855",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/overlord-1vv",
      "bytes": 1222614,
      "sha256": "764271de5c624de6970f012be06b26d0486bc646fa511c1a2c6d502dc8c9ddc6",
      "platform": "DOS",
      "archiveFiles": 35
    }
  },
  {
    "rank": 49,
    "title": "Warzone 2100",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Real-time strategy game set in a futuristic universe; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Deadlock: Planetary Conquest",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/6166/Deadlock%3A+Planetary+Conquest.html",
    "sourceUrl": "https://wz2100.net/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://wz2100.net/",
      "bytes": 392936210,
      "sha256": "f93f71e80d6ddcdda5434c459d46361c3c35dfdc712c9fde5677ef46c570f816",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Deadlock: Planetary Conquest. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/Warzone2100/warzone2100/releases/download/4.7.0/warzone2100_win_x64_archive.zip",
          "bytes": 392936210,
          "sha256": "2deed0a8cfe30a188681f1fea11d75fdcdef30075254b1cd90799868ce1c6104",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 50,
    "title": "Armagetron Advanced",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study 3D multiplayer game with Tron-style lightcycles; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Space Rogue",
    "originalSourceUrl": "http://www.abandonia.com/en/games/25004/Space%20Rogue.html",
    "sourceUrl": "http://www.armagetronad.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "http://www.armagetronad.org/",
      "bytes": 2968326,
      "sha256": "2eada2f3993b916a5c82739cf6cd2201556b824fe11ead95ac6f90279c4f33b2",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Space Rogue. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "User data are stored in C:\\Users\\[USERNAME]\\AppData\\Roaming\\Armagetron"
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://launchpad.net/armagetronad/0.2.9/0.2.9.3.1/+download/armagetronad-0.2.9.3.1.win32.exe",
          "bytes": 2968326,
          "sha256": "c4124711021fd421f32e12ae963132ff0a48e90c92df3a426d44c2678ef14f32",
          "verification": "source manifest md5"
        }
      ]
    }
  },
  {
    "rank": 51,
    "title": "Advanced Strategic Command",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Turn-based tactics, unit positioning, supplies and campaign progression; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "UFO - Enemy Unknown",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/38/UFO%20-%20Enemy%20Unknown.html",
    "sourceUrl": "https://sourceforge.net/projects/asc-hq/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://sourceforge.net/projects/asc-hq/",
      "bytes": 38608996,
      "sha256": "568bcfea1bf62b9a796553ed99aa20467fc4cab0375302bf21c61a4b56cbb1c2",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for UFO - Enemy Unknown. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://sourceforge.net/projects/asc-hq/files/ASC%20Win32/2.6.1/ASC-2.6.1.0-Install.exe/download",
          "bytes": 38608996,
          "sha256": "8669ace22c5d23c55ebdc523540cfa7c7c0672d93b24525d7806bf8addad6148",
          "verification": "source manifest sha256"
        }
      ]
    }
  },
  {
    "rank": 52,
    "title": "MegaMek",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Free turn-based strategy game based on the classic BattleTech/MechWarrior universe; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "X-Com - Apocalypse",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/307/X-Com%20-%20Apocalypse.html",
    "sourceUrl": "https://megamek.org",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://megamek.org",
      "bytes": 638913922,
      "sha256": "f50f11b15575fa192375ffdbcd733f5d92bc0e77ddc1ce15e942dc71b1cf48df",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for X-Com - Apocalypse. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires a compatible Java runtime; not installed or launched."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/MegaMek/megamek/releases/download/v0.51.0/megamek-0.51.0.tar.gz",
          "bytes": 638913922,
          "sha256": "5d673cdaca0ead0e58d6e74db5b2d1e06bc25ccb5caaf332dad71624f6487b85",
          "verification": "source manifest SHA-256"
        }
      ]
    }
  },
  {
    "rank": 53,
    "title": "Dune II - The Building of a Dynasty",
    "group": "Strategy, agents and tactical readability",
    "researchQuestion": "Study readable harvesting, construction and unit orders",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/12164/Dune+II+-+The+Building+of+a+Dynasty.html",
    "archiveTimestamp": "20120730170708",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/dune-ii-the-building-of-a-dynasty-1e7",
      "bytes": 4007747,
      "sha256": "dc609ef7b613b2c42a7c1efb8dd0b9f017d150cb4182fcf2a0a2b3214db5e6dc",
      "platform": "DOS",
      "archiveFiles": 22
    }
  },
  {
    "rank": 54,
    "title": "Wyrmsun",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Real-time strategy game with retro graphics; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Warcraft II",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/30996/Warcraft%20II.html",
    "sourceUrl": "https://andrettin.github.io/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://andrettin.github.io/",
      "bytes": 459886938,
      "sha256": "f9d1a43cbb54c218fc890d7a9c33226d117565dd17d372c47c93248a9f0fbc9b",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Warcraft II. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Game data, Windows dependencies and executable downloaded separately; not installed or launched."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://codeload.github.com/Andrettin/Wyrmsun/zip/refs/tags/v5.3.6",
          "bytes": 414025437,
          "sha256": "91d54b7137aff5368cd3a74feadb58cbadf3d63e7db1d7e3d3741d8a93337f76",
          "verification": "source manifest SHA-256 and ZIP CRC"
        },
        {
          "url": "https://github.com/Andrettin/Wyrmsun/releases/download/2021.09.19/dependencies.zip",
          "bytes": 35723389,
          "sha256": "22e64575b7129b8bd17b6f3e26421a9ece57238423e1ac316aa835ca4177b7e9",
          "verification": "source manifest SHA-256 and ZIP CRC"
        },
        {
          "url": "https://github.com/Andrettin/Wyrmsun/releases/download/v5.3.6/wyrmsun.exe",
          "bytes": 10138112,
          "sha256": "5eb82e02c166f5c620915e0d7ab13e80dc7586cc08579159f9ea360d99da9d43",
          "verification": "File header; locally recorded SHA-256"
        }
      ]
    }
  },
  {
    "rank": 55,
    "title": "TripleA",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study Turn-based free and open-source strategy game based on the Axis & Allies board game; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Command & Conquer",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/378/Command%20&%20Conquer.html",
    "sourceUrl": "https://triplea-game.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://triplea-game.org/",
      "bytes": 63516160,
      "sha256": "5d0407de2b7c5984f92b8369670672389de83b63b420a38cc52fc9486f7ee38b",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Command & Conquer. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Installer downloaded; additional maps may be selected and downloaded in-game. Not installed or launched."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/triplea-game/triplea/releases/download/2.5.22294/TripleA_2.5.22294_windows-64bit.exe",
          "bytes": 63516160,
          "sha256": "0eddc4e13bff3a1bfcad6a1d5f2429557552076d0c70f5fcd1aaf8f1cf889dea",
          "verification": "source manifest SHA-256"
        }
      ]
    }
  },
  {
    "rank": 56,
    "title": "Hedgewars",
    "group": "Free games \u00b7 simulation and strategy",
    "researchQuestion": "Study 2D turn-based artillery game featuring fighting hedgehogs; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "War Wind",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27538/War%20Wind.html",
    "sourceUrl": "https://www.hedgewars.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.hedgewars.org/",
      "bytes": 177491490,
      "sha256": "2797f48a339693f07fcd2550256eb26eb867fece44fb0de8c181bb3f96625c23",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for War Wind. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://www.hedgewars.org/download/releases/Hedgewars-1.0.0.exe",
          "bytes": 177491490,
          "sha256": "cbbdbfcc560313234d08c8d445a8e81137e958dc7b4a67802671aa6407b5ba83",
          "verification": "source manifest SHA-256"
        }
      ]
    }
  },
  {
    "rank": 57,
    "title": "Angband",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study A free single-player dungeon exploration Roguelike; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Warlords II",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/554/Warlords%20II.html",
    "sourceUrl": "https://rephial.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://rephial.org/",
      "bytes": 24575817,
      "sha256": "3b8df2fc3cbfbd0dc1b52ad7d04c7335c614d4a5ff22a43b50c561a04967a1a5",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Warlords II. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Configuration files cannot be persisted, but will be retained during package updates."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/angband/angband/releases/download/4.2.6/angband-4.2.6-win.zip",
          "bytes": 24575817,
          "sha256": "83f9f92354c02093ec660dda67fedee281e2cb1455207ed1170e32ce8e1c9d60",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 58,
    "title": "FreedroidRPG",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Isometric RPG influenced by Paradroid; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Heroes of Might and Magic",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/191/Heroes%20of%20Might%20and%20Magic.html",
    "sourceUrl": "http://www.freedroid.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "http://www.freedroid.org/",
      "bytes": 238060410,
      "sha256": "4c86fda289154672a202e631a9492c404cffdf1b49331cf283b98730e8488f2b",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Heroes of Might and Magic. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://ftp.osuosl.org/pub/freedroid/freedroidRPG-1.0/freedroidRPG-1.0-win32-x86-64.exe",
          "bytes": 238060410,
          "sha256": "61309cd399f4d7a6c671a2dea5d1e5d13b2ac8bea8d5e0e2f0d76ba9fb1bf449",
          "verification": "source manifest SHA-256"
        }
      ]
    }
  },
  {
    "rank": 59,
    "title": "NetHack",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Single player rogue-like videogame; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Fantasy General",
    "originalSourceUrl": "http://www.abandonia.com/en/games/12441/Fantasy+General.html",
    "sourceUrl": "https://www.nethack.org",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.nethack.org",
      "bytes": 4718108,
      "sha256": "fc260517964f72999579c39ca8d1c250394a7e076ba5d7d23262970afb5b7928",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Fantasy General. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://www.nethack.org/download/3.6.7/nethack-367-win-x86.zip",
          "bytes": 4718108,
          "sha256": "eed14e4a8f2cdc5bed6d220602b1649bcf9f89c3916330b298ef947d2539cb69",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 60,
    "title": "Shattered Pixel Dungeon",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Traditional roguelike game with pixel-art graphics and simple interface; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Age of Wonders",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/30794/Age%20of%20Wonders.html",
    "sourceUrl": "https://shatteredpixel.com/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://shatteredpixel.com/",
      "bytes": 54253547,
      "sha256": "29eb5aeb44fd285d814efc07ad6d07eed46dcfd8686942ef20aa96782d548862",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Age of Wonders. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires a compatible Java runtime; not installed or launched."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/00-Evan/shattered-pixel-dungeon/releases/download/v4.0.2/ShatteredPD-v4.0.2-Java.jar",
          "bytes": 54253547,
          "sha256": "bcefd52a9c14f69c69d3ccc08a212cdd3830b2dc60d78d80895cd803fa1ec602",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 61,
    "title": "Civilization",
    "group": "Strategy, agents and tactical readability",
    "researchQuestion": "Study technology, settlement and production feedback",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/11402/Civilization.html",
    "archiveTimestamp": "20120730130303",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/sid-meier-s-civilization-1nj",
      "bytes": 3702050,
      "sha256": "0a7ed4a46f02e1f28dc22e16b679328f3db460a417e7d1a673af90e98f8f503d",
      "platform": "DOS",
      "archiveFiles": 9
    }
  },
  {
    "rank": 62,
    "title": "IVAN",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Iter Vehemens ad Necem - a continuation of the graphical roguelike by members of http://attnam.com; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Civilization II",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/29076/Civilization+II.html",
    "sourceUrl": "https://github.com/Attnam/ivan",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://github.com/Attnam/ivan",
      "bytes": 28935642,
      "sha256": "98410ee6a1a731078e2a03e5c81604f4eb69e9cd076dcee92d3925fd53ca6f0d",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Civilization II. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/Attnam/ivan/releases/download/v059/IVAN-v059-win.zip",
          "bytes": 28935642,
          "sha256": "ebd59c7a7cc36cf910a0ef9c26fce8e6dba4557aea26307c8009646dcd6c1972",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 63,
    "title": "Advanced Civilization",
    "group": "Strategy, agents and tactical readability",
    "researchQuestion": "Study trade and societal development as board-game systems",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/9840/Advanced%20Civilization.html",
    "archiveTimestamp": "20230308124031",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/advanced-civilization-249",
      "bytes": 13766073,
      "sha256": "6e11c6a1ff0edcf11a141ddc3d32ce53bc18ab8723a2abdc43fbe1106afacf15",
      "platform": "DOS",
      "archiveFiles": 69
    }
  },
  {
    "rank": 64,
    "title": "Enigma",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study A puzzle game inspired by Oxyd on the Atari ST and Rock'n'Roll on the Amiga; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Battle Isle 2",
    "originalSourceUrl": "http://www.abandonia.com/en/games/10608/Battle+Isle+2.html",
    "sourceUrl": "https://www.nongnu.org/enigma/index.html",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.nongnu.org/enigma/index.html",
      "bytes": 108245487,
      "sha256": "6c62584433458c291b82c4e2efec2f1504dacb949df1a1bd45a534eeb369f93a",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Battle Isle 2. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/Enigma-Game/Enigma/releases/download/1.30/Enigma-1.30-windows10.zip",
          "bytes": 108245487,
          "sha256": "caab7ec85f126acfc84434366544722b1adb809d4cf109fbed8a092cf5fd99d4",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 65,
    "title": "Panzer General",
    "group": "Strategy, agents and tactical readability",
    "researchQuestion": "Study compact hex-map unit communication",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/258/Panzer%20General.html",
    "archiveTimestamp": "20080209215536",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/panzer-general-2as",
      "bytes": 6520615,
      "sha256": "f4c8e56d281a1a2b4dfe198148d6dfee4ff968d37bfbc073122153bd2a32a708",
      "platform": "DOS",
      "archiveFiles": 893
    }
  },
  {
    "rank": 66,
    "title": "Bombermaaan",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Classic bomberman game; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Battle Bugs",
    "originalSourceUrl": "http://www.abandonia.com/en/games/10569/Battle+Bugs.html",
    "sourceUrl": "http://bombermaaan.sourceforge.net/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "http://bombermaaan.sourceforge.net/",
      "bytes": 1809309,
      "sha256": "6f6f69fe8173bc3960fa1bbac1b5c00408bd002953afa7cef42181b0f44f2291",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Battle Bugs. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.sourceforge.net/project/bombermaaan/1%20-%20Bombermaaan%20Stable/1.4/Bombermaaan_1.4.0.627_setup.exe",
          "bytes": 1809309,
          "sha256": "4e8bdc5362623e6f7712c7fb2442339de3ea494ff51562f8ed86af2239ec4745",
          "verification": "source manifest SHA-256"
        }
      ]
    }
  },
  {
    "rank": 67,
    "title": "C-Dogs SDL",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Classic overhead run-and-gun game; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Syndicate",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/90/Syndicate.html",
    "sourceUrl": "https://cxong.github.io/cdogs-sdl/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://cxong.github.io/cdogs-sdl/",
      "bytes": 34071179,
      "sha256": "e670bb2096d338671903e250ab9287beebc0d80b62e0c6f4c4c03c975f41c39e",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Syndicate. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/cxong/cdogs-sdl/releases/download/2.5.0/C-Dogs.SDL-2.5.0-win32.zip",
          "bytes": 34071179,
          "sha256": "448409739c4409cc188f5342fdcb95aa1beea10c9cb87d3021fc471a47e8e5fc",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 68,
    "title": "Teeworlds",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study 2D retro multiplayer shooter; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Cannon Fodder",
    "originalSourceUrl": "http://www.abandonia.com/en/games/11188/Cannon+Fodder.html",
    "sourceUrl": "https://teeworlds.com/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://teeworlds.com/",
      "bytes": 10255484,
      "sha256": "8334d31927959fc30952dd8d45399b2beaf3ad7b121f8d228e93adf9e144fe0c",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Cannon Fodder. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/teeworlds/teeworlds/releases/download/0.7.5/teeworlds-0.7.5-win64.zip",
          "bytes": 10255484,
          "sha256": "83cd75884a0e8339b4910da1bfe4d737af794d35600cd065e7c2222750b37585",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 69,
    "title": "Dungeon Master",
    "group": "Strategy, agents and tactical readability",
    "researchQuestion": "Study spatial interaction and real-time party feedback",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/28563/Dungeon+Master.html",
    "archiveTimestamp": "20101231185245",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/dungeon-master-n0",
      "bytes": 896553,
      "sha256": "aeb5a47f3b753206e474185f2c08b5e884dc8ddf4bd5cb82e2f28f9b7617f275",
      "platform": "DOS",
      "archiveFiles": 19
    }
  },
  {
    "rank": 70,
    "title": "Tales of Maj\u2019Eyal",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Tales of Maj\u2019Eyal (ToME) is a free, open source roguelike RPG, featuring tactical turn-based combat and advanced character building; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Stronghold",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/642/Stronghold.html",
    "sourceUrl": "https://te4.org",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://te4.org",
      "bytes": 537674117,
      "sha256": "ab4244002bd39a5d41b8fedff939da4908b11480bcb2f62d7384de1061926cb2",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Stronghold. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://te4.org/dl/t-engine/t-engine4-windows-1.7.6.zip",
          "bytes": 537674117,
          "sha256": "38dddcf9a09e3640b1195372763ade25187d0a840556614b72d9223d3fe97c8c",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 71,
    "title": "LambdaHack",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Haskell game engine library for roguelike dungeon crawlers; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Ultima VII - Part 1 - The Black Gate",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27189/Ultima+VII+-+Part+1+-+The+Black+Gate.html",
    "sourceUrl": "https://github.com/LambdaHack/LambdaHack",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://github.com/LambdaHack/LambdaHack",
      "bytes": 13701126,
      "sha256": "e60cd986506f93562456439b4d236e54625ccc763de3f99202f0490f4260c9ab",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Ultima VII - Part 1 - The Black Gate. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/LambdaHack/LambdaHack/releases/download/v0.11.0.0/LambdaHack_0.11.0.0_windows-x86_64.zip",
          "bytes": 13701126,
          "sha256": "7588920ac3987e4fbea80980e14854aadc8983783bc5ce1e50edb6b16d25003c",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 72,
    "title": "Infra Arcana",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study A roguelike game set in the early 20th century; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Ultima VI - The False Prophet",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/28710/Ultima+VI+-+The+False+Prophet.html",
    "sourceUrl": "https://sites.google.com/site/infraarcana/home",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://sites.google.com/site/infraarcana/home",
      "bytes": 45868534,
      "sha256": "4c9b42942739d5f225ed6413419a4d97a523ef321cd25d28ff792b0eb979f23f",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Ultima VI - The False Prophet. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "User data are stored in C:\\Users\\[USERNAME]\\AppData\\Roaming\\infra_arcana"
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://gitlab.com/martin-tornqvist/ia/-/jobs/artifacts/v23.0.0/download?job=build-windows",
          "bytes": 45868534,
          "sha256": "d11b5cb2c9afea6c2ae849c7d81f73f8d4a2f50ef5f7f4360a9e93f320aa1253",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 73,
    "title": "Umoria",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study A single player roguelike based on Lord of the Rings; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Ultima V - Warriors of Destiny",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/843/Ultima+V+-+Warriors+of+Destiny.html",
    "sourceUrl": "https://umoria.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://umoria.org/",
      "bytes": 1146540,
      "sha256": "c8db2ee2693b62ba7a58c98d659543950e3fb508c22c7eb21d3c972dde432286",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Ultima V - Warriors of Destiny. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "To run umoria in the console, use: 'Push-Location $(scoop which umoria | Split-Path); umoria.exe; Pop-Location'."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/dungeons-of-moria/umoria/releases/download/v5.7.15/umoria-5-7-15-win64.zip",
          "bytes": 1146540,
          "sha256": "21385709f5df60f1dd2c4a944ad8fcb7c4ea613c1948a4034e6cc15170e4ea59",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 74,
    "title": "Sil",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study A roguelike in the first age of Middle-earth, variant of Angband; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Ultima IV Quest of  the Avatar",
    "originalSourceUrl": "http://www.abandonia.com/en/games/25548/Ultima+IV+Quest+of++the+Avatar.html",
    "sourceUrl": "http://www.amirrorclear.net/flowers/game/sil/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "http://www.amirrorclear.net/flowers/game/sil/",
      "bytes": 16303666,
      "sha256": "05f92ef245c9d4f2c1dc025677c484cfeb90b9606943221edbf48b7701ce8a91",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Ultima IV Quest of  the Avatar. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Configuration files cannot be persisted, but will be retained during the update"
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "http://www.amirrorclear.net/flowers/game/sil/Sil-130-Win.zip",
          "bytes": 16303666,
          "sha256": "613a9bbd6dc9869fe6fd352f6e3af21060421ab5c56cf27db3f1c2ce49b5a908",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 75,
    "title": "Witch Blast",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Roguelite dungeon crawl shooter similar to The Binding of Isaac; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Ultima Underworld - The Stygian Abyss",
    "originalSourceUrl": "http://www.abandonia.com/en/games/30917/Ultima+Underworld+-+The+Stygian+Abyss.html",
    "sourceUrl": "https://github.com/Cirrus-Minor/witchblast",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://github.com/Cirrus-Minor/witchblast",
      "bytes": 47633597,
      "sha256": "5b22ad28f34ab40b447745975091d855a161dd81573553f336a604f8211d42a6",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Ultima Underworld - The Stygian Abyss. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://github.com/Cirrus-Minor/witchblast/releases/download/v0.7.5/Witch.Blast.v0.7.5.zip",
          "bytes": 47633597,
          "sha256": "2ed55f51f5a7a1a59d45175242bd62ae602361fc70d337ef7406d5b516398661",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 76,
    "title": "Neverball",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study 3D roll-the-ball puzzle game (includes Neverputt); document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Darklands",
    "originalSourceUrl": "http://www.abandonia.com/en/games/29576/Darklands.html",
    "sourceUrl": "https://neverball.org/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://neverball.org/",
      "bytes": 75802818,
      "sha256": "5d34771e3ae1aa52268ae02c4884482e802c0a653ff212345700329aa987f27c",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Darklands. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://neverball.org/neverball-1.6.0.zip",
          "bytes": 75802818,
          "sha256": "865391cc041208e526401a8eb1f14fba44323f17d7e818c5e65e82393ff747fb",
          "verification": "source manifest SHA-256 and ZIP CRC"
        }
      ]
    }
  },
  {
    "rank": 77,
    "title": "Fish Fillets NG",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Port of the puzzle game Fish Fillets from ALTAR interactive; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Wasteland",
    "originalSourceUrl": "http://www.abandonia.com/en/games/16892/Wasteland.html",
    "sourceUrl": "http://fillets.sourceforge.net/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "http://fillets.sourceforge.net/",
      "bytes": 158776777,
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Wasteland. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
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        {
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  {
    "rank": 78,
    "title": "The Griffon Legend",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Betrayal at Krondor",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/208/Betrayal+at+Krondor.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Betrayal at Krondor. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Griffon%20Legend/griffon-1.0.zip",
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  {
    "rank": 79,
    "title": "God of Thunder",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Albion",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27705/Albion.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.scummvm.org/games/",
      "bytes": 1059686,
      "sha256": "22de9f76d6ed5bcb4d56ebb7e8ce568aafa86abc347cc333dbe1e0512710f289",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Albion. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/God%20of%20Thunder/gotfree.zip",
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  {
    "rank": 80,
    "title": "Sfinx",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Quest for Glory IV - Shadows of Darkness",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/26923/Quest%20for%20Glory%20IV%20-%20Shadows%20of%20Darkness.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.scummvm.org/games/",
      "bytes": 16549117,
      "sha256": "359c85faff383e74c96da834a384200d49b1a37894b62cb8d7c545b258111a31",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Quest for Glory IV - Shadows of Darkness. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Sfinx/sfinx-en-v1.1.zip",
          "bytes": 16549117,
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  {
    "rank": 81,
    "title": "Life Flashes By",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Princess Maker 2",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/15092/Princess+Maker+2.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.scummvm.org/games/",
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      "sha256": "8a323f9cb67ccd26fcdded5b9a94c59e10e4e072e4470616ba5a8f976e200c29",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Princess Maker 2. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/SLUDGE/lifeflashesby.zip",
          "bytes": 156473936,
          "sha256": "04d5058429f7354fe7b9305a5bc35ad6ebc2a0bac461140ed1a7309604c5dc7b",
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  {
    "rank": 82,
    "title": "Alter Ego",
    "group": "Inhabited worlds, characters and narrative",
    "researchQuestion": "Study life events and consequence presentation",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/10088/Alter+Ego.html",
    "archiveTimestamp": "20081122114233",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/alter-ego-male-1s",
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      "editionNote": "Male edition."
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  {
    "rank": 83,
    "title": "Nippon Safes Inc.",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Pirates!",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27738/Pirates%21.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.scummvm.org/games/",
      "bytes": 1977894,
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Pirates!. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Nippon%20Safes/nippon-1.0.zip",
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  {
    "rank": 84,
    "title": "DreamWeb",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Covert Action",
    "originalSourceUrl": "http://www.abandonia.com/en/games/11583/Covert+Action.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
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      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Covert Action. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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          "url": "https://downloads.scummvm.org/frs/extras/Dreamweb/dreamweb-cd-uk-1.1.zip",
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  {
    "rank": 85,
    "title": "Flight of the Amazon Queen",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "The Secret of Monkey Island",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/19/The%20Secret%20of%20Monkey%20Island.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
      "bytes": 112625523,
      "sha256": "3b3fc77cf6820db46f850a18a9d47d53af19c88f5639c420359b90c0a4df756d",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for The Secret of Monkey Island. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Flight%20of%20the%20Amazon%20Queen/FOTAQ_Talkie-original.zip",
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  {
    "rank": 86,
    "title": "Broken Sword 2.5",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Day of the Tentacle",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/27540/Day+of+the+Tentacle.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
      "bytes": 901436443,
      "sha256": "f05e0b3f6816bfa16f16325770121799fa22a8cf6bea57d677c6c2222646a529",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Day of the Tentacle. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Broken%20Sword%202.5/sword25-v1.0.zip",
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  {
    "rank": 87,
    "title": "Beneath a Steel Sky",
    "group": "Inhabited worlds, characters and narrative",
    "researchQuestion": "Study environmental clues and character presentation",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/29361/Beneath+a+Steel+Sky.html",
    "archiveTimestamp": "20120801073118",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
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      "platform": "DOS / ScummVM",
      "archiveFiles": 5,
      "editionNote": "Official ScummVM CD archive; matches the published SHA-256.",
      "integrity": "Matches publisher-distributed SHA-256 and passes ZIP CRC"
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  {
    "rank": 88,
    "title": "Lure of the Temptress",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Loom",
    "originalSourceUrl": "http://www.abandonia.com:80/en/games/21/Loom.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
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      "sha256": "bf34c80b1f00ac4db557e2db6f7f57497809425459dae68ce3faaeb7b58cd656",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Loom. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
        {
          "url": "https://downloads.scummvm.org/frs/extras/Lure%20of%20the%20Temptress/lure-1.1.zip",
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  {
    "rank": 89,
    "title": "Drascula: The Vampire Strikes Back",
    "group": "Free games \u00b7 tactics, role-playing and interaction",
    "researchQuestion": "Study Adventure game: interactions, narrative state, puzzles and readable feedback; document actions, feedback and failure/recovery",
    "catalogEvidence": "Free replacement; original proposal retained in originalTitle",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "originalTitle": "Another World",
    "originalSourceUrl": "http://www.abandonia.com/en/games/10226/Another+World.html",
    "sourceUrl": "https://www.scummvm.org/games/",
    "replacementReason": "No-cost replacement; study scope revised for this game.",
    "acquisition": {
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      "source": "https://www.scummvm.org/games/",
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      "sha256": "93ee4703bf5d1297c7c45a85085bcc05a9c45c54297e4d23b555f1827f32ce5d",
      "platform": "Windows / required runtime noted",
      "editionNote": "Free replacement for Another World. Downloaded packages are not installed or play-tested.",
      "runtimeNotes": [
        "Requires ScummVM; game content downloaded separately."
      ],
      "integrity": "Individual package checksums recorded; aggregate SHA-256 identifies the package set.",
      "packages": [
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          "url": "https://downloads.scummvm.org/frs/extras/Drascula_%20The%20Vampire%20Strikes%20Back/drascula-1.0.zip",
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  {
    "rank": 90,
    "title": "Prince of Persia",
    "group": "Inhabited worlds, characters and narrative",
    "researchQuestion": "Study animation anticipation and spatial readability",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/15067/Prince+of+Persia.html",
    "archiveTimestamp": "20160906201157",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "sha256": "4daa393f524fff21908e76db1729d2563675e99a047dc8e34234467a75adf70f",
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      "archiveFiles": 27
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  },
  {
    "rank": 91,
    "title": "The Incredible Machine",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study cause-and-effect construction and experimentation",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/25/The%20Incredible%20Machine.html",
    "archiveTimestamp": "20071226023325",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/the-incredible-machine-1mg",
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      "sha256": "6351ae0db7736fb18deb65176d681d3dc271190c0a749f9c440d8352dc1f2f29",
      "platform": "DOS",
      "archiveFiles": 15
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  },
  {
    "rank": 92,
    "title": "Sid & Als Incredible Toons",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study animated mechanisms and visual feedback",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/30820/Sid%20&%20Als%20Incredible%20Toons.html",
    "archiveTimestamp": "20130622235603",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/sid-al-s-incredible-toons-1md",
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      "sha256": "a0a88f94c6cba07b5b40ced2ec0ed51590563e02ee2037bdab2a125a045c327d",
      "platform": "DOS",
      "archiveFiles": 24
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  },
  {
    "rank": 93,
    "title": "Lemmings",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study indirect control over many moving agents",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://abandonia.com:80/en/games/37/Lemmings.html",
    "archiveTimestamp": "20071213010231",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
      "status": "downloaded",
      "source": "https://www.myabandonware.com/game/lemmings-16x",
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      "sha256": "b79610a6bde5e03609a20e91aea3fd0db3bad74daea7c762140e3a750720ffba",
      "platform": "DOS",
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  {
    "rank": 94,
    "title": "Lemmings 2 - The Tribes",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study a larger job vocabulary without losing readability",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com/en/games/29665/Lemmings+2+-+The+Tribes.html",
    "archiveTimestamp": "20120713065041",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/lemmings-2-the-tribes-1zn",
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      "sha256": "aeb105eb43f23573ded361e2eb206c9a52ce900123a5cef02f4221ca1a4e58fe",
      "platform": "DOS",
      "archiveFiles": 9
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  },
  {
    "rank": 95,
    "title": "Lost Vikings, The",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study complementary character abilities",
    "catalogEvidence": "archived-title-url",
    "sourceUrl": "http://www.abandonia.com:80/en/games/12/Lost%20Vikings,%20The.html",
    "archiveTimestamp": "20071225210722",
    "researchStatus": "proposed; gameplay not yet analyzed",
    "acquisition": {
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      "source": "https://www.myabandonware.com/game/the-lost-vikings-1mi",
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      "platform": "DOS",
      "archiveFiles": 5
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  },
  {
    "rank": 96,
    "title": "Robot Odyssey",
    "group": "Construction, puzzles and scenario authoring",
    "researchQuestion": "Study programmable behavior and visible debugging",
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