01

A living battlefield

Two strains expand across the same dish. Space, pressure and timing matter as much as raw growth.

02

Mutation during the match

Mutations reshape how your strain grows, survives and applies pressure while the match is already moving.

03

PvE and PvP

Play against artificial intelligence or face another player. The same living system creates a different problem each time.

What PETRI is

PETRI Strainborn is a browser strategy game built around competing biological colonies inside a Petri dish. The game focuses on adaptation, mutation and territorial pressure rather than commanding conventional units.

Where to play

The browser game is available at play.petripulse.com. This site is the official information, community and support hub.

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