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co.build lists third-party projects and provides its own descriptions and setup prompts. Review instructions before running them: device changes can cause damage, data loss or security problems. Independent repair does not automatically remove statutory warranty rights, but damage caused by a modification may be excluded where law permits. Check the project, permissions and local law. Device names and logos belong to their owners; a listing does not imply their endorsement.

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Devices Requests Submit a project

Devices
Game consoles
Sega

Mods for your Sega Mega Drive and Genesis

A cartridge-based home console family with optional CD and other expansions.

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What you can change

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Available mods

1 mod

240p Test SuiteApp

Test picture quality with console-native patterns

371stars on GitHubActive. Last commit 2d ago.

Needs: Flash cartridge or Sega CD with CD-R
Data: From your device or local files. Reads through USB, a diagnostic connection, a local network, files or a local database. Optional cloud features may send data elsewhere.

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