Universe Sandbox

Universe Sandbox is a series of simulation video games; users can see the effects of gravity on objects in the universe and run scale simulations of the Solar System, galaxies or other simulations with celestial bodies, interacting and controlling gravity, time and parameters like mass, density or radius of objects like moons, planets, asteroids, comets or black holes. The original Universe Sandbox was only released for Windows, but an updated version was released for Windows, macOS, and Linux in 2015 titled Universe Sandbox 2. It is often used for near-scientific simulations of space for illustrational purposes.