Macrobio.io | Evolve or Die

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?