{
  "added_at": "2026-11-02",
  "additional_evidence_urls": [
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/NOTICE",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/CONTRIBUTING.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/AGENT.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/docs/BUILD.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/docs/WINDOWS.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/Makefile",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/crates/approved_tests/README.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/docs/provenance/movement-iw4.md",
    "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/LICENSE",
    "https://github.com/vladtrc/iw4L/releases/tag/v0.1.0-demo.23"
  ],
  "category": "reconstruction-cases",
  "description_en": "Implements a standalone runtime for Call of Duty: Modern Warfare 2 (2009) in Rust on Bevy and wgpu, loading maps, models, textures and weapons from the user’s installed game through native FastFile readers and translating its Direct3D 9 shaders to WGSL. Bots, demo recording and replay, and multiplayer over custom UDP with a QUIC master are implemented, while README warns that gameplay remains incomplete, with missing behavior, bugs and desyncs. README states that the whole project is written by an LLM; NOTICE names the community projects consulted and says the original binaries were read with Ghidra.",
  "description_zh": "以 Rust 基于 Bevy 和 wgpu 实现《使命召唤：现代战争 2》（2009）的独立运行时：通过原生 FastFile 读取器从使用者已安装的游戏中载入地图、模型、纹理和武器，并将其 Direct3D 9 着色器转换为 WGSL。已实现机器人、录像录制与回放，以及基于自定义 UDP 和 QUIC 主服务器的多人游戏；但 README 提醒游戏玩法仍不完整，存在缺失行为、错误和不同步。README 声明整个项目由大语言模型编写；NOTICE 列出参考过的社区项目，并说明曾用 Ghidra 阅读原版二进制文件。",
  "entry_url": "https://awesomerea.org/resources/iw4l-mw2-rust-runtime-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/iw4l-mw2-rust-runtime-case/",
  "evidence_url": "https://github.com/vladtrc/iw4L/blob/acc57a5c9dd027db8eb5ef17c792fa69f059daa1/README.md",
  "group": "cases",
  "id": "iw4l-mw2-rust-runtime-case",
  "json_url": "https://awesomerea.org/resources/iw4l-mw2-rust-runtime-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/iw4l-mw2-rust-runtime-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/iw4l-mw2-rust-runtime-case/index.md",
  "name": "IW4L: a Rust runtime that plays Modern Warfare 2 from the user’s installed game",
  "name_zh": "IW4L：用使用者已安装的游戏运行《现代战争 2》的 Rust 运行时",
  "reconstruction_method": "engine-reimplementation",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "limits",
    "testing",
    "license",
    "attribution"
  ],
  "requirements": [
    "Needs the user’s own MW2 Multiplayer installation, which BUILD.md describes as the Windows depot of a Steam copy; Black Ops and MW3 data are optional. The repository and release archives contain no game data, and CONTRIBUTING.md forbids attaching, committing or linking original game files.",
    "Builds with stable Rust through rustup and GNU Make. Linux needs a C/C++ toolchain and X11, Wayland, ALSA, udev and xkbcommon development packages; macOS needs only the Xcode command-line tools. The Windows release is a password-protected iw4l-windows.zip; given a server operator’s .iw4l-server descriptor, iw4l.exe installs SHA-256-verified executable updates from that operator.",
    "Releases are tagged demo builds, v0.1.0-demo.23 at review. APIs, caches and the wire protocol change between commits, so multiplayer peers must run the same build.",
    "No CI workflow or cargo test suite: make publish-check rejects test modules, and the only permanent checks are two owner-approved end-to-end scenarios driving real clients on MW2 maps with the user’s game data. Fidelity to the original game is not measured.",
    "Apache-2.0 source with two bundled OFL fonts; game assets and trademarks remain their owners’.",
    "NOTICE says no third-party source is vendored and names references read during development, including OpenAssetTools, IW4x, KisakCOD and Plutonium’s decompiled Black Ops II scripts. A provenance note records replacing a movement module after reported similarities to GPL code."
  ],
  "requirements_zh": [
    "需要使用者自己的 MW2 多人游戏安装，BUILD.md 说明使用 Steam 版的 Windows 资源库；《黑色行动》和 MW3 的数据为可选。仓库和发行压缩包均不含游戏数据，CONTRIBUTING.md 禁止附带、提交或链接原版游戏文件。",
    "使用 rustup 安装的稳定版 Rust 和 GNU Make 构建。Linux 需要 C/C++ 工具链及 X11、Wayland、ALSA、udev 和 xkbcommon 开发包；macOS 只需 Xcode 命令行工具。Windows 发行版是设有密码的 iw4l-windows.zip；放入服务器运营者提供的 .iw4l-server 描述文件后，iw4l.exe 会安装该运营者发布、经 SHA-256 校验的可执行文件更新。",
    "发行版均为标注 demo 的构建，审阅时为 v0.1.0-demo.23。API、缓存和网络协议会随提交变化，因此多人游戏各方必须运行同一构建。",
    "没有 CI 工作流，也没有 cargo 测试套件：make publish-check 会拒绝测试模块，唯一保留的检查是两个经所有者批准的端到端场景，它们使用使用者的游戏数据，在 MW2 地图上驱动真实客户端。项目未衡量与原版游戏的一致程度。",
    "源码采用 Apache-2.0，附带两款 OFL 字体；游戏素材和商标仍归其所有者。",
    "NOTICE 称未内置任何第三方源码，并列出开发中参考过的项目，包括 OpenAssetTools、IW4x、KisakCOD 和 Plutonium 反编译的《黑色行动 II》脚本。一份来源说明记录：因有报告称某个移动模块与 GPL 代码相似，该模块已被替换。"
  ],
  "targets": [
    "game"
  ],
  "url": "https://github.com/vladtrc/iw4L",
  "verification": "source-reviewed",
  "verified_at": "2026-10-19"
}