Welcome to SIMMER 2.0!

We just rewrote the entire site and relaunched on Feb 15, 2025.

Need the old site? https://legacy.simmer.io

Need help? Got feedback or found a bug? support@simmer.io, discord

-Rocco, simmer.io founder
Tum-Tum: An Unexpected Diet
Tum-Tum is a fat cat. He’s so fat he can barely move. Tum-Tum decides to call a shaman to cure him from his anxiety. And help him to feel better. Catch the mice and avoid your past ghosts!

HOW TO PLAY:
-> Arrow keys to move
-> Spacebar to navigate through cutescenes
-> "R" key to restart the game
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