Kerbal Space Program has left Early Access. 1.0 comes packed with new features, optimizations, bugfixing, and tons more! Conquering Space Was Never This Easy!
User reviews: Overwhelmingly Positive (24,474 reviews) - 97% of the 24,474 user reviews for this game are positive.
Release Date: Apr 27, 2015

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Recommended By Curators

"A perfect blend of science and slapstick, and a robust and compelling sandbox of possibility. Simply outstanding."
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Recent updates View all (25)

September 23

Two Unity Awards! Thank you for voting

Good afternoon from Mexico!

Last night at Unite Boston - for those of you who don’t know - the Unity Awards ceremony took place, and Kerbal Space Program was awarded not one, but two awards: Best Gameplay and Community Choice! It's an amazing honor and we’re very glad the KSP community supported us in such a major way. We want to thank you from the bottom of our hearts.

Being part of such a strong lineup of games, and walking away with two awards is something we never saw coming, but there are also many games that were nominated, or won awards, that you really should check out:

  • First and foremost: the winner of the Golden Cube, Cities Skylines. This game is a fantastic city builder with a great developer and publisher behind it. The first expansion pack, which is right around the corner, also looks very promising.
  • Endless Legend walked away with the award for best 3D experience, and this 4X turn based fantasy game should definitely be on your list if you’re into the genre.
  • Ori and the Blind Forest is a stunning looker. In this 2D platformer you explore a deeply emotional story about love and sacrifice. Did we say it’s a beautiful already? It took the award for best 2D experience!
  • Probably the only riot training program we’ve ever seen: Anarcute won best student project! In this game your goal is to escape the police, gather a group of friends and destroy literally everything. It’s only a matter of time until Danny2462 gets his hands on this, we’re sure.
Apart from making games, the Unity engine is often used to create a wide range of tools, art and virtual reality programs. In these categories the winners were Parachute Training Simulator (best visual simulation), UEFA Champions League Nissan Orchestra (best of non game), and Tilt Brush (best VR experience). Finally, Chronos - Time Control walked away with the best store asset award.

Unfortunately the list would grow a bit long if we mentioned all the nominees, but rest assured they’re all amazing in their own way. A full list is available at the Unity website.

Thank you to Unity and you all for the awards and a massive congratulations to all the winners on behalf of all of us here at Squad!

57 comments Read more

September 9

Kerbal Space Program nominated for two awards!

Our small team of developers has been working very hard for more than four years to develop Kerbal Space Program, and now our game has been nominated in various categories for two audience choice gaming awards, and we'd appreciate your vote if you've enjoyed launching rockets, crashing Kerbals and landing on asteroids as much as we've enjoyed developing the game over these past years!

First, the Unity Awards are a yearly award show for games made on the Unity engine. KSP has been nominated for the Golden Cube (the overall award), as well as for the Best Gameplay and Community Choice categories.

In the Golden Joystick awards KSP has been nominated in the categories of Best Original Game, Best Indie Game, Best PC Game and Ultimate Game of the Year. You can vote at the link below.

Of course we also wish the other nominated games the best of luck!

60 comments Read more

About This Game

In KSP you must build a space-worthy craft, capable of flying its crew out into space without killing them. At your disposal is a collection of parts, which must be assembled to create a functional ship. Each part has its own function and will affect the way a ship flies (or doesn't). So strap yourself in, and get ready to try some Rocket Science!

The game offers three gameplay modes: Sandbox, in which you are free to build anything you can think of; Science Mode, which lets you perform Scientific experiments to advance the knowledge of Kerbalkind and further the available technology; and Career Mode, in which you must manage every aspect of your Space Program, including administration strategies, Crew Management, Reputation, as well as taking up Contracts to earn Funds and upgrade your Space Center Facilities (or repair them).

Add to this the ability to capture asteroids (a feature done in collaboration with NASA), Mining for resources out across the furthest reaches of the Solar System, Constructing Bases and Space Stations in and around other worlds; plus literally thousands of mods from a huge active modding community, all add up into the award-winning game that has taken the space sim genre by storm.

Key Features

  • The Vehicle Assembly Building and the Space Plane Hangar allows players to build spacecraft out of any imaginable combination of parts.
  • Fully-fledged, Physics-based Space Flight Simulation ensures everything will fly (and crash) as it should.
  • Take your Kerbal crew out of the ship and do Extra Vehicular Activities.
  • Fly out to Moons and other Planets.
  • Procedural Terrain delivers detailed terrain at a vast scale. The Kerbal Planet is 600km in radius!
  • Mod-enabled, allows players to create new content and modify the game.
  • Ship systems. Keep an eye out for engine temperatures and fuel levels, and try not to explode.
  • Build ships with multiple stages, and jettison parts away as they burn out.
  • Full control over the ship’s setup allows for complex ships and advanced functionality.
  • Dock spacecraft together to build Space Stations, Massive Starships, or even surface bases on other worlds.
  • Manage your crewmembers, hire them, and send them out into space and make them into heroes.
  • Research and Develop new technologies to advance your Space Program.
  • Take on Missions to attract interest in your Space Program.
  • Discover new worlds and expand the scientific knowledge of Kerbalkind.
  • Extract valuable resources from all over the solar system.
  • And a whole lot more!

System Requirements

Mac OS X
SteamOS + Linux
    • OS:Windows Vista or 7
    • Processor:Core 2 Duo
    • Memory:3 GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:1 GB HD space
    • OS:Windows 8 or 10 64 bit
    • Processor:Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:2 GB HD space
    • OS:Snow Leopard (10.6)
    • Processor:Intel
    • Memory:3 GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:1 GB HD space
    • OS:Yosemite (10.10)
    • Processor:Intel Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:2 GB HD space
    • OS: Linux (Most distros should work)
    • Processor: Core 2 Duo
    • Memory: 3 GB RAM
    • Hard Disk Space: 1.5 GB HD space
    • Video Card: SM3 512MB VRAM
    • OS:Ubuntu 14.04
    • Processor:Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:2 GB HD space
Helpful customer reviews
1,671 of 1,737 people (96%) found this review helpful
2 people found this review funny
78.2 hrs on record
Posted: April 27
This game should be standard issue in school physic classes. Taught me more about orbital mechanics than anything else.
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776 of 790 people (98%) found this review helpful
1 person found this review funny
1,308.3 hrs on record
Posted: June 11
Words alone cannot express how amazing KSP is.

To be honest, this is not a game for everyone. If you are in the market for some fast-paced "space combat sim" with all kinds of weapons and big explosions, then this isn't what you are looking for. (Except for the big explisions... KSP has you covered there).

However, if you ever dreamed of actually being an astronaut, this is definitely for you. If you sometimes forget to breath when watching recordings of the Apollo moon landings, this is definitely for you. If precise, measured flying; careful planning; and delta-v budgeting are what drives you, this is definitely for you. If you want to learn about Orbital Mechanics and are dying to know what the Oberth Effect or a Hofman Transfer Orbit are, this is definitely for you. If you like Physics, this is definitely for you.

Optionally, if you just like building rediculously large rockets and watching them explode with glorious comedy when they fail catastrophically because you forgot ONE PART... then this is also definitely for you.

Kerbal Space Program is challenging, fun, frustrating, mind boggling, huge, hilarious, complicated, deep, and just plain awesome.
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1,247 of 1,310 people (95%) found this review helpful
5 people found this review funny
56.7 hrs on record
Posted: April 28
Parachutes do not work on the moon. Many Kerbals died to bring us this information.

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370 of 378 people (98%) found this review helpful
2 people found this review funny
851.1 hrs on record
Posted: April 28
There are no other games really like this. You will, in a terribly entertaining way, learn some fundamental of orbital mechanics, rocket science, aerodynamics, astrophysics and even a bit of mechanical engineering and straight physics.

There is nobody to shoot, no zombies, no monsters, no combat. No grand conquests and raising flags over captured enemy bases. Yet you have never and will never play a game that will challenge, entertain and reward you like KSP will. The learning curve is stiff but not terrible. You play it at your own pace because, well, there is no other pace you can play it at. Games like Dark Souls are 'hard' because you've got to have the right mix of luck and muscle memory and you have to throw yourself at it again again. KSP can be hard because calculating the right setup for the right injection burn to put you in a viable position to get past Ike into a stable orbit around Duna with enough fuel to get you home is a staggering undertaking, a lot of planning and forethough.

This is one of those games that changes gaming. You will kick yourself, repeatedly, when you look back and realize you didn't have a chance to play KSP.

It is a complex, indepth, engaging, well balanced and changing but simplified to make it fun to play simulator for building and deploying rockets and ships to go into space, visit and explore other worlds and travel a solar system.

The developer is a big part of this success. One of the first trail blazers on 'early access' they have been amazing for involving the community. Several of the top modders for KSP (they love and support modding in KSP - not to fix bugs but add content) were engaged and used in building content for the 1.0 release even. They are still engaged in improving and adding content to KSP.

I've got close to 800 hours in at this point and still haven't really played swaths of the game, there are dozens of mods I want to try but haven't had the chance. This is the kind of game that's fun and engaging for years and years. Sometimes you need to step outside the regular run of the mill and see why a game like this has tens of thousands of reviews that are almost universally positive.
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1,325 of 1,465 people (90%) found this review helpful
1 person found this review funny
839.6 hrs on record
Posted: April 27

Ruined Science Fiction Movies with now learnt knowledge of real-life Astrophysics
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