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
cyclewars.io
Navigate the grid and create light trails to destroy your enemies.

Press WASD or the ARROW keys to steer your light cycle, then activate Speed Boost with SPACE or Left Click.
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