{
  "added_at": "2026-11-06",
  "additional_evidence_urls": [
    "https://github.com/CreativeInquiry/GameTrak-Liberation/blob/bc8c2f96c86c15f016939777e9694f1366cb2836/docs/protocol.md"
  ],
  "category": "reconstruction-cases",
  "description_en": "GameTrak Liberation implements a client for the GameTrak controller's reverse-engineered USB HID behavior. It sends the initialization and rolling-key keepalive messages needed for sustained reports, then exposes six-axis data through stdout, OSC, MIDI or WebSockets. Protocol notes, report captures and Processing and p5.js examples accompany the Python tools.",
  "description_zh": "GameTrak Liberation 根据逆向得到的 USB HID 行为实现控制器客户端。它发送初始化消息和滚动密钥保活包，以持续接收六轴数据，并通过 stdout、OSC、MIDI 或 WebSockets 输出。仓库还提供协议笔记、报告采样及 Processing 和 p5.js 示例。",
  "entry_url": "https://awesomerea.org/resources/gametrak-liberation-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/gametrak-liberation-case/",
  "evidence_url": "https://github.com/CreativeInquiry/GameTrak-Liberation/blob/bc8c2f96c86c15f016939777e9694f1366cb2836/README.md",
  "group": "cases",
  "id": "gametrak-liberation-case",
  "json_url": "https://awesomerea.org/resources/gametrak-liberation-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/gametrak-liberation-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/gametrak-liberation-case/index.md",
  "name": "GameTrak Liberation: a client for the controller's HID protocol",
  "name_zh": "GameTrak Liberation：基于控制器 HID 协议的客户端",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "testing",
    "limits",
    "license"
  ],
  "requirements": [
    "A GameTrak controller is required for live capture; offline playback accepts recorded JSONL reports.",
    "The author tested a GameTrak V2.0 unit on macOS 15.6 with Python 3.10 and 3.14.",
    "The footswitch was unavailable for testing and is unsupported.",
    "MIT license."
  ],
  "requirements_zh": [
    "实时采集需要 GameTrak 控制器；离线回放可使用已录制的 JSONL 报告。",
    "作者在 macOS 15.6 上使用 Python 3.10 和 3.14 测试了 GameTrak V2.0 设备。",
    "脚踏开关未能测试，当前不受支持。",
    "MIT 许可证。"
  ],
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/CreativeInquiry/GameTrak-Liberation",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}