Universe Sandbox
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
About
Universe Sandbox is a realistic physics-based space simulator that allows you to create, destroy, and interact on an unimaginable scale.
It merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet.
Simulate Gravity
N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required.
Collide Planets & Stars
Create Your Own Systems
Start with a star, then add a planet. Spruce it up with moons, rings, comets, or even a black hole.
Model Planetary Climate
Watch sea ice grow and recede with the seasons because of a planet’s tilt - change the tilt and change the seasons. Or move planets close to a star and see the oceans boil away as the surface heats up.
Supernova a Star
Watch a supernova unfold by colliding two stars, cranking up their mass, or making them explode at your whim.
Explore Historical Events
And more...
Build and terraform planets with 12 materials, including water, oxygen, & carbon dioxide
Stellar flares & volatile trails
Procedurally generated planets, stars, & galaxies
Pulsars
Light-warping black holes
Epic space lasers
Shape oceans & mountains on planet surfaces
Spin planets apart with centrifugal force
Original soundtrack by Macoubre
Support for 20+ languages
Share & explore simulations on Steam Workshop
Videos
Screenshots
System requirements
Minimum OS: Windows 10 21H1+ (64-bit, x86) Processor: 1.6 GHz dual-core Memory: 4 GB RAM Graphics: 4 GB Video Memory†, Shader Model 6.0 DirectX: Version 12 Storage: 4 GB available space Additional Notes: † Laptops or other computers that use integrated graphics (rather than dedicated graphics hardware) may see issues with Universe Sandbox even if they meet the video memory requirement. Dedicated video hardware is recommended. Recommended OS: Windows 11 Processor: 3.6 GHz quad-core Memory: 8 GB RAM Graphics: 8+ GB Video Memory DirectX: Version 12
Minimum OS: macOS 11.0 Processor: Apple M1, 1.6 GHz dual-core Memory: 4 GB RAM Graphics: Metal, 4 GB Video Memory† Storage: 4 GB available space Additional Notes: † Laptops or other computers that use integrated graphics (rather than dedicated graphics hardware) may see issues with Universe Sandbox even if they meet the video memory requirement. Dedicated video hardware is recommended. Recommended OS: macOS 11.0+ Processor: Apple M1+, 3.6 GHz quad-core Memory: 8 GB RAM Graphics: 8 GB Video Memory
Minimum OS: Ubuntu 12.04+, SteamOS+ Processor: 1.6 GHz dual-core Memory: 2 GB RAM Graphics: OpenGL 4.3, 2 GB Video Memory† Storage: 2 GB available space Additional Notes: Officially supports the same Linux distributions supported by Unity (currently Ubuntu 12.04+). Other distributions can and will work, but they may require a bit of configuration and tinkering. † Laptops or other computers that use integrated graphics (rather than dedicated graphics hardware) may see issues with Universe Sandbox even if they meet the video memory requirement. Dedicated video hardware is recommended. Recommended Processor: 3.6 GHz quad-core Memory: 8 GB RAM Graphics: 4 GB Video Memory