Free • No download
About Cytosphere: Cell Defense
Cell-defense arcade: rotate a living membrane, sort incoming particles, and stop infections in fast runs. Start a new run!
How to play
Rotate the membrane with a mouse, touch, or keyboard. Match green with nutrients, cyan with energy, violet with viruses and parasites, and orange with toxins. A wrong match damages health and raises infection. Maintain a combo, charge the pulse, and choose mutations between waves. On desktop, press Space for the pulse and Escape to pause.
Screenshots
Cytosphere: Cell Defense FAQ
Is Cytosphere: Cell Defense free to play?
Yes. You can play Cytosphere: Cell Defense online for free without buying the game or creating an account.
Can I play on mobile or a Chromebook?
Yes. The game runs in a modern browser on phones, tablets, laptops, desktops, and Chromebooks.
Do I need to download anything?
No. Press Play and the browser game loads directly on this page.
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