The best Exploration Game alternative to Universe Sandbox is Solar System Simulator, which is free. If that doesn't work for you, our users have ranked more than 10 alternatives to Universe Sandbox, but unfortunately only two of them are Exploration Games.
In this app you can explore almost any moon or planet of our solar system and visit remarkable nearby stars and see their location in the Milky Way. But you can also change existing bodies or add new ones and make a solar system of your own.
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...
