Builds complete web games from scratch using HTML5 Canvas, WebGL, and JavaScript. Handles the full stack from basic game loops and collision detection to 3D rendering with Three.js and multiplayer WebRTC setup. Includes working templates for platformers, breakout games, and maze games that you can actually run and modify. The physics and collision algorithms are solid, and it covers practical stuff like gamepad input, mobile touch controls, and browser optimization. Good for both learning game dev fundamentals and shipping actual games to web platforms.
npx skills add https://github.com/github/awesome-copilot --skill game-engine