You are a phagocyte inside a Petri dish, and the bacterial colonies grow exponentially. If you don't eat them, they saturate the slide and the culture ends. There are no offline earnings: stopping doesn't stall you, it loses.
Eighteen weapons in three rows, from phagocytosis to antibiotics to extreme therapies. They fire on their own, and stand down on their own once the dish has hardened against them: antibiotic resistance is not a theme here, it is the mechanic. What you decide is where to stand.
A thousand plates, four legends. Plate 100 is home to the pan-resistant Klebsiella pneumoniae — genuinely at the top of the WHO priority pathogen list — and beating it wins the game.
Free, no ads, no in-app purchases. The whole game is there from the first launch. Your progress is saved to your iCloud and follows you across your devices.
Found a problem, or have a suggestion? Write to donbreda4@gmail.com: we reply as soon as we can.
If you are reporting a simulation bug, include the run's seed — you'll find it in the end-of-culture summary. With it the run replays identically, bacterium by bacterium.
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The families, the Gram stain, the antibiotic classes and the resistance mechanisms are all real, simplified just enough to play with. The game is not medical material and must not be used as such.
© 2026 Giulia Giancaterino