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Introducing Kerbal Space Program!

KSP is a game where the players create and manage their own space program. Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space.

The game is currently under heavy development. This means the game will be improved on a regular basis, so be sure to check back for new updates. Right now, KSP is in Sandbox Complete state, but we want you to try it out and have fun with it. The Demo version is free to download and play, and will remain so forever.

The KSP Team is strongly commited to the project, and we are always listening for feedback from the players.

If you have any questions, comments and ideas, please contact us, or join us on the Forums.

Dec 29, 2014 - Modding Mondays: In-Flight Waypoints

Small, but useful is the best way to describe nightingale's IN-FLIGHT WAYPOINTS. This plugin renders waypoints into flight mode. Want to...  Read more

Dec 26, 2014 - Get KSP For 40% Off on Steam!

Get 40% off of Kerbal Space Program today and tomorrow in the STEAM HOLIDAY SALE!  Read more

Dec 26, 2014 - KSP Tips and Tricks

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Dec 25, 2014 - Happy Holidays!

Happy holidays, everyone, no matter what you’re celebrating today. Us? We’re celebrating the fact that an aero overhaul and deep...  Read more

Dec 24, 2014 - Video Wednesdays: Christmas: Eve

A Kerbal stationed on Eve makes one big wish. Will it come true? Find out in One Way Gaming's “Christmas:...  Read more