Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings.


The best Simulation Games alternative to Universe Sandbox is Space Simulation Toolkit. It's not free, so if you're looking for a free alternative, you could try Pioneer. If that doesn't suit you, our users have ranked more than 10 alternatives to Universe Sandbox and four of them are Simulation Games so hopefully you can find a suitable replacement. Other interesting Simulation Games alternatives to Universe Sandbox are Space Simulator and Reentry.
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings.


Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying...



Space Simulator is a realistic space flight simulator for iOS and Android. It is an open-ended simulation where players can free roam Solar System or reenact historical NASA space program missions.




Reentry is a space flight simulator based on real life spacecrafts. You create a new astronaut, gain levels and experience for every move you make by completing missions in space.



