

Project Biosphere
Nine Hostages Games · 2026 · Simulation, Physics, God Game, Sandbox, 3D
PC
This game is free to play. Get it on Steam →
Screenshots
About Project Biosphere
Project Biosphere is a real-time ecosystem sandbox built on a falling-sand simulation. Water flows, heat spreads, fire consumes, plants take root. Ecosystems rise and fall.
Relax, waste some time, and let out some steam. With no set goal, Project Biosphere is simply a toy.
Shape the terrain, choose a world preset, and experiment with a living simulation where every material interacts. Dry worlds burn. Wet worlds flood. Rich soil blooms. Harsh conditions choke growth. Small changes can ripple outward.
Inspired by 2D falling-sand games, we're bringing the idea to life in 3D.
Watch life take hold, from single celled-organisms to multi-cellular life, the evolution simulation makes the sandbox come to life.
Control the Environment, raise and lower abmient temperature and watch the world turn to an inferno. Increase pressure, humidity or switch gravity negative.
Relax, waste some time, and let out some steam. With no set goal, Project Biosphere is simply a toy.
Shape the terrain, choose a world preset, and experiment with a living simulation where every material interacts. Dry worlds burn. Wet worlds flood. Rich soil blooms. Harsh conditions choke growth. Small changes can ripple outward.
Watch life take hold, from single celled-organisms to multi-cellular life, the evolution simulation makes the sandbox come to life.
Control the Environment, raise and lower abmient temperature and watch the world turn to an inferno. Increase pressure, humidity or switch gravity negative.
Community reviews
—
0 reviews
Sign in to write a review.
No reviews yet. Be the first to review this game.











