You start as one fragile cell under the microscope. Swallow everything smaller, outrun everything bigger, and grow into the monster that owns the petri dish.
Macrobio is a fast arcade eater: one run takes a couple of minutes, one mistake takes everything.
🦠 EAT OR BE EATEN
Drag to steer. Double-tap to dash. Split to snatch prey that thinks it is safe. Mass is your health, your size and your score at the same time — every bite makes you stronger and slower, and every rival is watching for the moment you get greedy.
🧬 10 EVOLUTION PATHS
Pick a path at the start of a run, then stack mutations on top of it. No two runs play the same:
• Macrophage — tanky and efficient, rots slower
• Warden — spiked armor, attackers burst on contact
• Parasite — siphons mass out of smaller cells without touching them
• Phototroph — grows in the light and seeds its own food
• Plague — leaves a poison trail behind you
• Discharge — electric shock pulse
• Swarm — a swarm of killer drones
• Cyst — cloak, vanish, ambush
• Magnet — drags food and prey toward you
• Cryo — chills every cell that comes close
🎨 35 STRAINS TO COLLECT
Open lootboxes for new strains, from common cells to legendary ones, and repaint anything you own in the Chroma Lab.
🧪 BOOSTS AND THE INCUBATOR
Brew potions for extra XP, growth, harvest or a bigger starting mass. Your incubator keeps working while the game is closed and grows boost hours for you — come back, claim them, and go on a rampage.
🏆 SOMETHING TO CHASE EVERY DAY
Daily rewards, streaks, missions, a season pass and prestige — there is always one more level, one more strain, one more record to beat.
📴 PLAY ANYWHERE
Every rival cell is driven by AI, so the arena is always full and the game runs fully offline. No Wi-Fi, no waiting for a match, no lag — open it in a queue, on a plane, anywhere.
Free to play. Optional purchases and ads support development.
Grow. Devour. Evolve. How big can one cell get?
Eat, grow, evolve. Rule the petri dish as the deadliest cell in the arena.