Copy cartridges/_template to cartridges/your-game. Replace game.tynt and add a 320 × 288 nearest-neighbor cover.png captured from the 160 × 144 game canvas, then complete cartridge.json and the cartridge README.
All submitted cartridge source and artwork must use the MIT License and declare "license": "MIT" in cartridge.json. By submitting a cartridge, you confirm that you created its contents or have permission to distribute them under MIT.
Run bun run check from the repository root. The gallery generator discovers every valid cartridges/<slug>/ directory automatically; contributors never edit a central registry.
Submit the complete cartridge directory in one pull request. Keep unrelated application, dependency, workflow, and configuration changes out of a cartridge submission.