Welcome to SIMMER 2.0!

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

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-Rocco, simmer.io founder
Mitosis
Mito-what? This is a fun way to learn some science. You start off as a single cell and you need to get smaller cells in order to grow. Larger cells would want to absorb you though. You will get slower as you get bigger but you can split to become faster. If you split and become smaller, you'll be targeted by larger cells. What will you do?
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