Kerbal Space Program is a multi-genre game where the players create their own space program. In KSP, you must build a space-wo ...

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 ...

Orbiter is a realistic 3D real-time space flight simulator program. Fed up with space games that insult your intelligence and ...

Oolite is a space sim game, inspired by Elite. Among Oolite's several similarities to its inspirational source, the gaming exp ...

Universe Sandbox is an interactive space simulator for Windows based PCs. Unlike most astronomy software that just shows you w ...

Vega Strike is an Open Source 3D Action-Space-Sim that lets you trade, fight, and explore in a vast universe. Vega Strike is b ...