The game checks for a specific file in the user’s forked repo (using the GitHub API) to progress.
GitHub Pages is a static hosting service. Developers upload HTML5, JavaScript, and CSS games — often clones of classics (Snake, Tetris, Pac-Man), puzzle games, platformers, or even 3D WebGL demos — and make them playable directly in a browser. No download, no login required. game github io
The Infinite Repository