The best Compatibility Layer alternative to RetroArch is PlayOnLinux - PlayOnMac, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to RetroArch and nine of them are Compatibility Layer Tools so hopefully you can find a suitable replacement. Other interesting Compatibility Layer Tool alternatives to RetroArch are GameHub, CrossOver, Mythic and WineGUI.
RetroArch alternatives are mainly Compatibility Layer Tools, but if you're looking for
Game Library Managers or Game Stores you can filter on that. Other popular filters include
Android,
Linux,
Windows and
iPhone. These are just examples - use the filter bar below to find more specific alternatives to RetroArch.
PlayOnLinux is a compatibility layer to play Windows games (or other software) on Linux. Retroarch is a multi-platform emulator frontend. They are not at all similar.