Cellosseum
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About Cellosseum
Cellosseum is a bullet heaven about a lone cell fighting enemies as it guides the evolution of life on the planet Ceres Prime. You choose and upgrade attacks, shields, health and speed as you work toward becoming the leader of evolution—or risk being lost to the indifference of the galaxy.
The lone cell
Choose from a range of attack types. As they evolve, their projectiles can change in range, power and type. An ability upgrade system lets you select evolutionary traits that suit your play style.
Enemies and landscapes
Face enemies with different attack characteristics, including Edgelord, Snowflake and Snuggle Bear. The game features watercolor artwork, hand-drawn characters and music, set among stylized cellular landscapes.
Frequently asked questions
Yes. Cellosseum is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for Cellosseum are: 512 MB RAM, 1 GB storage. It also runs on macOS. The recommended specs are in the System requirements section.
No. Cellosseum is a single-player game.
Mostly, yes. Valve rates Cellosseum as Playable on the Steam Deck: it runs, but may need some manual setup.
Yes. Cellosseum is the full base game. You need nothing else to play it.











