You control a microbe that travels through a vein and feeds on red blood cells. Collect the cells and mutate your microbe. Watch out for the white blood cells!
Have you ever imagined what it's like to be a microbe? Now you can be.
Updated on
Jan 21, 2026
Casual
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.