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
Castles.cc
Over here, you enter a world where you do whatever you want!! Play with people from all over the world in castle-building games/ contests, craft & sell stuff. It's your call.

WASD moves your character. Mouse button builds/breaks. Q and E pan the camera.
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