{
  "added_at": "2026-11-08",
  "category": "reconstruction-cases",
  "class": "game",
  "description_en": "OpenGromada reconstructs the engine used by Sigma Games titles including AS1/ZS1, Theseus, Crazy Lunch and Locoland/Steamland. Its C++20 executable reads the user's game resources and supports multiple platforms and architectures, widescreen display and gamepads.",
  "description_zh": "OpenGromada 重建用于 AS1/ZS1、Theseus、Crazy Lunch 和 Locoland/Steamland 等游戏的引擎。其 C++20 程序读取用户提供的游戏资源，支持多种平台和架构、宽屏显示及手柄。",
  "entry_url": "https://awesomerea.org/resources/opengromada-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/opengromada-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/siohaza/OpenGromada/blob/9b1e839c2e220bde0765b100ee5dc06139603413/README.md",
  "group": "cases",
  "id": "opengromada-case",
  "json_url": "https://awesomerea.org/resources/opengromada-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/opengromada-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/opengromada-case/index.md",
  "name": "OpenGromada: reconstructing the Sigma Games engine",
  "name_zh": "OpenGromada：重建 Sigma Games 游戏引擎",
  "reconstruction_method": "engine-reimplementation",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "license"
  ],
  "requirements": [
    "The relevant game's objects.res and data directories are required.",
    "Building requires CMake or Premake, a C++20 compiler and SDL3; Steamworks SDK and FFmpeg 6+ are needed for the named optional features.",
    "Sustainable Use License 1.0."
  ],
  "requirements_zh": [
    "需要相应游戏的 objects.res 和数据目录。",
    "构建需要 CMake 或 Premake、C++20 编译器和 SDL3；Steam 版 AS1 需要 Steamworks SDK，Locoland 视频功能需要 FFmpeg 6+。",
    "采用 Sustainable Use License 1.0。"
  ],
  "scope": "unknown",
  "targets": [
    "game"
  ],
  "url": "https://github.com/siohaza/OpenGromada",
  "verification": "source-reviewed",
  "verified_at": "2026-11-08"
}