{
  "added_at": "2026-11-09",
  "category": "reconstruction-cases",
  "class": "game",
  "description_en": "gagarin reconstructs the Command & Conquer: Red Alert 2 — Yuri's Revenge engine from retail gamemd.exe v1.001 with the MSVC 6.0 compiler. At source snapshot ce91a761 (2026-10-27), 10,307 of 19,778 functions are matched (52.1 percent) and 784 more are partial. Matched bodies cover 716,425 of 3,878,653 listed function bytes. The target image's SHA-256 is recorded in reccmp-project.yml.",
  "description_zh": "gagarin 用 MSVC 6.0 编译器，从零售版 gamemd.exe v1.001 重建《红色警戒 2：尤里的复仇》引擎。在源码快照 ce91a761（2026-10-27），19,778 个函数中的 10,307 个已匹配（52.1%），另有 784 个部分匹配。已匹配函数体覆盖列出的 3,878,653 字节中的 716,425 字节。目标镜像的 SHA-256 记在 reccmp-project.yml。",
  "entry_url": "https://awesomerea.org/resources/gagarin/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/gagarin/",
  "evidence_url": "https://github.com/r-melvin/gagarin/blob/932450d9c92d3c1aaca7737ac1bcdb1f158449e7/README.md",
  "group": "cases",
  "id": "gagarin",
  "json_url": "https://awesomerea.org/resources/gagarin/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/gagarin/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/gagarin/index.md",
  "name": "gagarin: reconstructing the Red Alert 2: Yuri’s Revenge engine",
  "name_zh": "gagarin：重建《红色警戒 2：尤里的复仇》引擎",
  "reconstruction_method": "matching-decompilation",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirements": [
    "Wine (WoW64), Python 3, Git, 7-Zip, GNU objdump, Ghidra, and the MSVC 6.0 toolchain from scripts/vc6/fetch_toolchain.sh. Verification reads a local gamemd.exe v1.001.",
    "The README points at LICENSE and LEGAL.md and does not name the license in the README."
  ],
  "requirements_zh": [
    "需要 Wine（WoW64）、Python 3、Git、7-Zip、GNU objdump、Ghidra，以及 scripts/vc6/fetch_toolchain.sh 取得的 MSVC 6.0 工具链。校验读取本地的 gamemd.exe v1.001。",
    "README 指向 LICENSE 和 LEGAL.md，没有在 README 里写出许可证名称。"
  ],
  "targets": [
    "game"
  ],
  "url": "https://github.com/r-melvin/gagarin",
  "verification": "source-reviewed",
  "verified_at": "2026-11-07"
}