Explore the cosmos with Universe Sandbox
Universe Sandbox, developed by Giant Army, is a physics-based space simulator that lets players create, destroy, and interact with celestial objects on an unimaginable scale. Through realistic gravity simulations, planetary collisions, and climate modeling, it provides a sandbox environment for exploration and experimentation. Players can design solar systems, witness cosmic events, and manipulate fundamental forces to experience the dynamics of the universe.
Designed for creativity and exploration
The essence of Universe Sandbox lies in its emphasis on experimentation, letting players alter physics parameters such as gravity, temperature, and planetary mass. You can build solar systems, collide planets and stars, or adjust conditions to see how worlds evolve. The simulator focuses on open-ended play, where you decide what to create or destroy. Because it uses real physics, certain features may feel overwhelming at first for beginners.
Stunning visuals and realistic physics
Universe Sandbox features detailed 3D visuals of planets, stars, and galaxies, combined with realistic physics simulations. Players can watch dramatic events such as supernovae, planetary collisions, and the effects of gravity on celestial bodies. The simulator is regularly updated by developer Giant Army, ensuring new features and improvements over time.
A vibrant community and continuous updates
Universe Sandbox lets players share and try out custom creations through the Steam Workshop. This means you can download other people’s simulations or upload your own for others to explore. The developers at Giant Army also keep the game fresh with regular updates, adding new features and improvements. With community content and ongoing support, there’s always something new to discover.
A universe you can shape
Universe Sandbox makes space feel exciting and hands-on. You can build your own solar systems, crash planets together, or watch stars explode, all while learning how physics works in real time. The game keeps growing with new updates and shared creations from the community, so there is always something new to try. It’s a fun way to explore the wonders of the universe.



















