Make your own games for ModRetro Chromatic, directly in Codex. Turn your ideas into playable adventures. Create worlds, design characters and pixel art, write dialogue, and test your game as it takes shape.
When you're ready, flash your game to the compatible ModRetro Chromatic Game Cartridge. Then pick up your Chromatic and play what you created. Built on GB Studio and the Chromatic Firmware Updater, the plugin creates Game Boy and Game Boy Color games that remain fully editable in GB Studio.
Cartridge activation keys are exclusive to the ModRetro Chromatic: DevDay Edition. Each activation key is limited to two devices.
Runs locally: needs the ChatGPT desktop app or Codex with local execution enabled.
Install
- 1Add it in ChatGPT
Open Plugins in the ChatGPT sidebar (web or desktop), search for “ModRetro Chromatic Plugin” and select +. You'll be asked to sign in to any connected service on first use. Then type @ in a chat to call it.
Skills 5
- ModRetro Chromatic Deployment
Capture a device, stream a demo or deploy a ROM
- ModRetro Chromatic Authoring
Author editable native game projects and gameplay
- ModRetro Chromatic Pixel Art
Author native GBC assets, palettes, and frames
- ModRetro Chromatic ROM Debugging
Build, step through, and debug real Game Boy ROMs
- modretro-chromatic-setup
Prepare missing game compiler or emulator dependencies for an installed ModRetro Chromatic plugin, or diagnose tools that cannot start.
Things to ask
- “Help me create and playtest a Game Boy Color game with ModRetro Chromatic.”