{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/nsmbu/sead/blob/9d69563298cb82ea1fce9526e962e0d2ea3ba4dc/packages/agl/README.md"
  ],
  "category": "reconstruction-cases",
  "class": "game",
  "description_en": "sead reconstructs Nintendo EAD engine and library code found in New Super Mario Bros. U and other games. Its C++ tree covers framework, containers, graphics, audio and file devices, with a current goal of matching the original functionality rather than its compiled bytes.",
  "description_zh": "sead 用 C++ 重构《New Super Mario Bros. U》等游戏中的 Nintendo EAD 引擎与库代码，涵盖框架、容器、图形、音频和文件设备。项目目前以与原版功能一一对应为目标，不追求编译后字节一致。",
  "entry_url": "https://awesomerea.org/resources/nsmbu-sead-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/nsmbu-sead-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/nsmbu/sead/blob/9d69563298cb82ea1fce9526e962e0d2ea3ba4dc/README.md",
  "group": "cases",
  "id": "nsmbu-sead-case",
  "json_url": "https://awesomerea.org/resources/nsmbu-sead-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/nsmbu-sead-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/nsmbu-sead-case/index.md",
  "name": "sead: reconstructing Nintendo EAD engine libraries used by NSMBU",
  "name_zh": "sead：重构《New Super Mario Bros. U》所用的 Nintendo EAD 引擎库",
  "reconstruction_method": "decompilation",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "limits",
    "license"
  ],
  "requirements": [
    "Byte-identical matching is outside the current goal because the compiler version used for NSMBU is unavailable.",
    "No licence file in the repository."
  ],
  "requirements_zh": [
    "由于无法取得 NSMBU 使用的编译器版本，项目目前不以逐字节匹配为目标。",
    "仓库中没有许可证文件。"
  ],
  "scope": "unknown",
  "targets": [
    "game"
  ],
  "url": "https://github.com/nsmbu/sead",
  "verification": "source-reviewed",
  "verified_at": "2026-11-09"
}