Game · Released

Kerbal Space Program

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Launch your Kerbal crew into orbit and beyond (while keeping them alive) to explore moons and planets in the Kerbol solar system, constructing bases and space stations to expand the reach of your expedition. Kerbal Space Program features three gameplay modes. In Science Mode, perform space experiments to unlock new technology and advance the know

Release date
April 27, 2015
Platforms
Windows, macOS, Linux
Developer
Squad
Publisher
Private Division
Kerbal Space Program artwork
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About Kerbal Space Program

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Launch your Kerbal crew into orbit and beyond (while keeping them alive) to explore moons and planets in the Kerbol solar system, constructing bases and space stations to expand the reach of your expedition. Kerbal Space Program features three gameplay modes.

In Science Mode, perform space experiments to unlock new technology and advance the knowledge of Kerbalkind. In Career Mode, oversee every aspect of the space program, including construction, strategy, funding, upgrades, and more. In Sandbox, you are free to build any spacecraft you can think of, with all parts and technology in the game. Try out the many mods created by the Kerbal Space Program community! Build spaceships, rockets, and vehicles using any imaginable combination of parts, each with their own function that will affect the way your spacecraft behaves.

Take full control over your ship’s setup to execute complex flight maneuvers. Manage your Kerbal crewmembers, including hiring, training, and sending them into space to become heroes. Discover a whole star system with unique moons and planets, exploring detailed terrain at a vast scale. Send your Kerbal crew outside their ships for “extra-vehicular” activities.…

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Kerbal Space Program reviews & player comments

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★ 9.2/10GOG · 1,343 ratings
GOGLast checked November 5, 2026

Most helpful8

★ 1 / 5
Take-Two have enforced a new EULA upon this game that makes those of us who already own it legally unable to play it if we…
★ 1 / 5
Great game ruined by spyware! Don't buy this game!!! Apparently buying this game is not good enough for the greed gob publishers they now want…
★ 5 / 5
...then this game should be yours. The start is relativly easy but later challanges are tough to conquer. Every successful step of your space program…
★ 3 / 5
A very fun game, with alot of mods that really keep the game going. Its quite challenging and some of the contracts ingame career mode…
★ 4 / 5
I'm very much torn on this game. I want to love it, but at the same time I hate so many things about it. It…
★ 5 / 5
This is probably the game I have spent the most time playing, ever. No idea exactly how long because I don't want to use Steam.…
★ 5 / 5
There are not enough stars in the rating to rate this, KSP is off the charts. Every 10 years or so there comes a game…
★ 5 / 5
First off I wanted to clarify some confusion here. I've seen a lot of recent reviews on here talking about Redshell, Spyware, EULA etc. Redshell…

Most recent8

Short excerpts linked to their source. The score above uses aggregate storefront ratings—not these few comments.