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
Slimes.io
Ready, set, get SLIME PAINTING!!!! You got 90 seconds to dominate as much territory with your jelly slime cube as you possibly can.

Control your jelly slime cube with the mouse.
Color as you move, splash others and level up to color more!
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