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:
Recent:
Very Positive (528 reviews) - 94% of the 528 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (30,447 reviews) - 97% of the 30,447 user reviews for this game are positive.
Release Date: Apr 27, 2015

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Recent updates View all (32)

June 21

Kerbal Space Program patch 1.1.3 is now available!



Hello everyone!

The 1.1.3 patch is now available! We’ve taken our time over the past couple of weeks to tackle as many issues as we could in this patch and the results speak for themselves: close to 100 fixes have been logged compared to the previous version of KSP, and we even found time to hide something small in the game that we’re sure a lot of long time fans will appreciate!

Check out the full changelog at our Forums.

144 comments Read more

April 30

Patch 1.1.2 is now available!



Hello everyone!

We noticed a number of issues persisted through the 1.1.1 patch earlier this week. We’re releasing patch 1.1.2 to address these issues before we head off to a long overdue vacation for the next couple of weeks. Patch 1.1.2 addresses issues with the user interface and landing legs, amongst others.

Check out the full changelog on our forums.

The Patch will start downloading through your Steam client automatically.

168 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

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • OS:Windows Vista or 7
    • Processor:Core 2 Duo
    • Memory:3GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:4 GB HD space
    Recommended:
    • OS:Windows 8 or 10 64 bit
    • Processor:Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:6 GB HD space
    Minimum:
    • OS:Lion (10.7)
    • Processor:Intel
    • Memory:3 GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:4 GB HD space
    Recommended:
    • OS:El Capitan (10.13)
    • Processor:Intel Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:6 GB HD space
    Minimum:
    • OS: Linux (Most distros should work)
    • Processor: Core 2 Duo
    • Memory: 3 GB RAM
    • Hard Disk Space: 4 GB HD space
    • Video Card: SM3 512MB VRAM
    Recommended:
    • OS:Ubuntu 14.04
    • Processor:Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:6 GB HD space
Customer reviews
Customer Review system updated! Learn more
Recent:
Very Positive (528 reviews)
Overall:
Overwhelmingly Positive (30,447 reviews)
Recently Posted
katieab39
( 110.9 hrs on record )
Posted: June 27
I going to personally recommend this game but every time I have missed this game I corrupted the game itself.
Helpful? Yes No Funny
Jeshikun
( 119.3 hrs on record )
Posted: June 27
This game is great, it has practically infinite replayability, and also appeals to an audience from newbs who just mess around to pros who’ve crunched all the numbers.
Helpful? Yes No Funny
Vamp
( 1.9 hrs on record )
Posted: June 27
Story: 2
There is not much story to speak of, although there is some good humor.

Aesthetics: 5
The art is cutesy, and the soundtrack is nothing special. If you liked the minions from Descpicable Me, you will like this game.

Gameplay: 9
The gameplay is of course the redeeming factor of this game. The physics based challenges and freedom is a lot of fun!

Co-op: N/A
There is no multiplayer aspect to this game.

Replay: 10
The game is essentially never ending!

Overall: 72% - C
The game is fun to experience, and if you are looking for a sandbox single player experience I would recommend it.
Helpful? Yes No Funny
PokeyOne
( 11.0 hrs on record )
Posted: June 27
This game is great!
Helpful? Yes No Funny
rhys.sayles1503
( 57.7 hrs on record )
Posted: June 27
Good game very enjoyable
Helpful? Yes No Funny
jrbond1
( 12.1 hrs on record )
Posted: June 27
it is fun
Helpful? Yes No Funny
annemariemcneill
( 245.1 hrs on record )
Posted: June 27
The greatest game I have ever played.
Helpful? Yes No Funny
Cthulhu 4 President
( 0.6 hrs on record )
Posted: June 27
I salute with honor all the Kerbals who gave their life in my space program. They will be remembered as brave pilots and sciencetists who travelled far into the universe, or at least tried and found that a horrible death by crushing into earth was gonna be the fatal end.
10/10
Helpful? Yes No Funny
pyrater
( 274.7 hrs on record )
Posted: June 27
DOnt be a fool buy this now!
Helpful? Yes No Funny
Matt
( 345.3 hrs on record )
Posted: June 27
I do have to reccomend this game because it is absolutley fantastic! Honetsly one of the best games in the space administrations and building genre. BUT, there are some very major problems that has arrisen with the latest updates...

THIS GAME CRASHES ALL THE TIME!!!!

At the moment, it is unplayable as it will randomly crash at will! Sometimes it will work for an hour or so, then crash mid flight resulting in a lot of wasted time as it sometimes won't save your progress. Then there's the long loading time to get the game running again after it does crash! I've had to rage quit this game more times than I care to admit.
If you can get past the constant crashing and updates that make all of your mods useless (also ruins your saves if you have used mods, then the game updates..) then give it a go!
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
454 of 474 people (96%) found this review helpful
481 people found this review funny
Recommended
212.7 hrs on record
Posted: May 31
>Buy game in sale in 2013
>Spend 4 months attempting to get to the Mun
>Spend the entire space program's budget on a Mun mission
>Forgot solar panels
>Jeb crashed due to lack of power. He is now stranded
>Tell him I'm mounting a rescue mission
>Get sidetracked flying planes to get more funds
>Accidentally learn to dock
>Somehow get to Duna
>Mannded Duna landing and return
>Make huge space station in Kerbin orbit
>Turn it into a huge ship by docking engines
>Fly to Jool and visit all the moons
>Have spare fuel so decide to do a grand tour of the solar system
>Finally done everything I came out to do. Start playing other games
>Be me 2016
>Load up KSP after new update to check it out
>Jeb still stranded on Mun
10/10
Was this review helpful? Yes No Funny
201 of 217 people (93%) found this review helpful
119 people found this review funny
Recommended
280.5 hrs on record
Posted: May 31
If you have kids, get this game for them. If you don't have kids, get this game anyway.
Was this review helpful? Yes No Funny
179 of 190 people (94%) found this review helpful
148 people found this review funny
Recommended
227.7 hrs on record
Posted: May 31
ruined my ability to enjoy science fiction movies.
Was this review helpful? Yes No Funny
107 of 112 people (96%) found this review helpful
44 people found this review funny
Recommended
15.6 hrs on record
Posted: June 3
This is Major Jeb to ground control
I'm stepping through the door.
And I'm floating in one of the most peculiar ways.
And the stars look very different today.
~10/10, great game.
Was this review helpful? Yes No Funny
104 of 124 people (84%) found this review helpful
114 people found this review funny
Recommended
267.7 hrs on record
Posted: May 29
Using Hyperedit I successfully:
Crashed Kerbin into Jool.

Using the BDarmoury I successfully:
Destroyed the space center.

Using Rockets I successfully:
Killed thousands of Kerbals.

Using Alcohol I successfully:
learned not to drink and rocket science.

Reviewing Kerbal Space Program I successfully:
Reviewed Kerbal Space Program.


11/10 would drink and rocket science again.
Was this review helpful? Yes No Funny
63 of 75 people (84%) found this review helpful
77 people found this review funny
Recommended
13.1 hrs on record
Posted: June 1
- Launched into space.
- Climbed outside to get science.
- Accidently let go.
10/10 would burn in atmosphere again.
Was this review helpful? Yes No Funny
43 of 47 people (91%) found this review helpful
8 people found this review funny
Recommended
112.1 hrs on record
Posted: June 6
So i told myself when i reached 100 hours on this game i would write a review. Well, here i am.


So i got this game around summmer 2015, after wanting it for a long time.
The game had just left early access and was in beta. (I just want to point out that i am very attatched to this game)
I adore this game. Most of my summer was spent playing this. (Before you say that isn't possible, i would like to point out my hours didn't add up as I ran the game from the .exe rather than steam.)

I would, and have, recommend this game to anyone who enjoys the feel of success, science, exploration, engineering, space, cute green creatures who you shall become the merciless god of as you stack them on top of each-other and use them as landing gear.

The only slightly bad thing about this game is the learning curve. I know the 1.1 update added loads of tutorials, 'cuz the old ones were exeedingly bad, but you will spend around 5 - 10 hours before you can do anything useful. Needless to say though it is worth it, and soon you will conquer the solar system!

Or, y'know, just abuse the various bugs the game has... that's cool....

Anyway, thanks for reading this review. If it helps someone buy the game, or spread the word, or anything, then i'm glad.

-- Simple Concept
Was this review helpful? Yes No Funny
41 of 49 people (84%) found this review helpful
85 people found this review funny
Recommended
987.2 hrs on record
Posted: June 3
Picked up a copy during its early access, have been in love with it since.
Was this review helpful? Yes No Funny
178 of 283 people (63%) found this review helpful
269 people found this review funny
Recommended
44.5 hrs on record
Posted: May 30
Before I played:
\\ _
   \( ͡° ͜ʖ ͡°)
    < ⌒ヽ
   /   へ\
   /  / \\
   レ ノ   ヽ_つ
  / /
  / /|
 ( (ヽ
 | |、\
 | 丿 \ ⌒)
 | |  ) /
`ノ )  Lノ
After I played:
/フフ         ム`ヽ
/ ノ)  ) ヽ
/ |  ( ͡° ͜ʖ ͡°)ノ⌒(ゝ._,ノ
/ ノ⌒7⌒ヽーく  \ /
丶_ ノ 。   ノ、 。|/
   `ヽ `ー-'_人`ーノ
    丶  ̄ _人'彡)
Was this review helpful? Yes No Funny
14 of 18 people (78%) found this review helpful
Recommended
68.8 hrs on record
Posted: June 7
This is without doubt the best game i have played.
Was this review helpful? Yes No Funny