Email: Password: Forgot your password?

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.

Feb 27, 2015 - Valentina's Day contest winner

Congratulations to Kyasarinn! After a vote amongst the developers you’ve won the Valentina’s Day contest! We’ll be in contact...  Read more

Feb 27, 2015 - Fanwork Friday: runners up for our Valentina Kerman contest

Time to reveal the winners of our Valentina’s Day contest! The ultimate winner will be announced by Maxmaps during Squadcast (19:30 EST /...  Read more

Feb 26, 2015 - Twitch Thursday: G33kGrrrly_Gaming

G33kGrrrly_Gaming is a very colorful character and recently streamed Kerbal Space Program on her Twitch channel. “More rockets” is...  Read more

Feb 25, 2015 - Video Wednesday: The end of Scott's Interstellar Quest

This has to be one of the longest series in KSP and this week it came to an end: Scott Manley’s Interstellar Quest. Over the course of a...  Read more

Feb 24, 2015 - Devnote Tuesday: Fairing well

Felipe (HarvesteR): This week has been mostly focused on the new fairings, the procedural mesh generation is already up and running, and you can...  Read more