A Linux-native mod manager supporting a wide range of games, built to bring feature parity with Windows-only tools.
No. Mosaic runs natively on Linux and manages mods for games running under Proton without requiring you to run the manager itself through Wine.
See the Adding a Custom Game page for how to register games beyond the built-in list.
Confirm you’ve deployed your profile (see Deploy and Restore) and that the game’s data path is set correctly.