Kerbal Space Program is a realistic space simulator with humor. Play for free via Steam, build rockets, explore planets and conquer the Universe.

Kerbal Space Program 2 is still stuck in limbo, so fans created a KSP1 mod to deliver on the devs’ original promise. One major star system is already implemented, with another on the way.

Kerbal Space Program 2 was expected to be Private Division's flagship game when it launched into early access in 2023, but it flopped badly and hasn't been updated since June 2024, leading many to ...