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
BlackHole.io
Devour your competition by being a black hole! Here you are a black hole in a city with a seriously big appetite. By appetite, I mean you grow bigger for each meal consumed ---other civilians & smaller sized black holes. You move your black hole using the mouse.

Hungry yet?
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