What are Project Lunar and Project Eris on ModMyClassic.com?

Project Lunar and Project Eris are the two main modding projects hosted on ModMyClassic.com, both aimed at people who want to modify their mini game systems. Project Lunar is the project for Sega's mini console line (such as the Genesis/Mega Drive Mini), while Project Eris targets Sony's PlayStation Classic. Both projects are now on indefinite hold — development has been paused for over five years — but the archived instructions and downloads remain available, and the community Discord is still active and helping newcomers.

What each project covers

If you're not sure which one applies to you, the deciding factor is simply which mini console you own. The two projects are not interchangeable.

What's still usable today

Even though active development stopped, the site states that all repositories remain available and that a live archive of the original website exists. Concretely, you can still reach:

• The archived Project Eris page, including instructions
• Project Eris v1.0.0 full package download
• Project Eris v1.0.0 desktop app download
• The archived Project Lunar page, including instructions
• The Project Lunar download page
• An archived version of the website (June 2025) for the original guides
• RetroArch cores (direct from LibRetro) and open source ports (GitLab)

Because the projects haven't been updated in over five years, treat the instructions as a snapshot of how the tools worked at that time rather than as current, maintained documentation.

A note on the site's current state

ModMyClassic.com explains that its long-time server provider failed and refused to recover its drives, including dedicated backup drives, after a data centre failure — and the primary local webserver backup was also corrupted. The site says it still holds multiple smaller backups, all repositories, and access to a live archive of the original website, so the loss is described as somewhat minimal, with missing elements to be replaced where possible.

Practically, this means some pages or assets may be incomplete or missing. If a link doesn't work, the archived website and the Discord community are the stated fallbacks.

Where to get help

The Discord community remains active and is described as friendly and supportive, driven by users rather than by the original developers. For anyone new to modding a mini system, that's the most likely place to get current answers, since the written guides are frozen in time.

The site also points to alternative and newer projects, such as Hakchi, for those who want to explore options beyond Lunar and Eris.

Bottom line

Choose Project Lunar if you're modding a Sega mini console, and Project Eris if you're modding a PlayStation Classic. Expect archived, no-longer-updated instructions and downloads rather than active support, and lean on the Discord community or the archived website when something on the main site is missing.