About This Game
Universe Sandbox ² is a physics based space simulator that merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. It's the long awaited sequel to the original Universe Sandbox.
Awesome Collisions
Epic, mind blowing collisions of massive planetary bodies that can be simulated at almost any speed.
Climate Simulation
Watch sea ice grow and recede with the seasons because of the tilt of the Earth: change the tilt and change the seasons. Or move the Earth further from the Sun and freeze the entire planet. Learn more...
Terraforming
Add carbon dioxide to a planet's atmosphere to heat it up. Then add water...
Deform the Surface
Impact planets with asteroids and comets and leave behind massive, molten craters.
And More...
Material System - build planets out of Hydrogen, Iron, Rock, & Water
Stellar evolution & supernovae
Solar flares & volatile trails
Procedurally generated stars & planets
Light-warping black holes
Simulated dark matter