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 (557 reviews) - 92% of the 557 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (30,323 reviews) - 97% of the 30,323 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.

114 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.

165 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 (557 reviews)
Overall:
Overwhelmingly Positive (30,323 reviews)
Recently Posted
Obsidian
( 1,434.0 hrs on record )
Posted: June 24
Promised myself to write a review once I hit 25 hours played, so I did... a bit later than planned

If you love tinkering, this is your game
Play Vanilla/unmodded until you had your fill
Then do it all again with mods and discover endless fun

Final tip, once you get to the mod part: get ckan, the mod for mods.
Helpful? Yes No Funny
WindowKey
( 27.6 hrs on record )
Posted: June 24
Such a good game, I can run it on a terrible laptop (on lowest graphics) but I've had endless fun just making stupid designs for ships and watching them go up in flames, but you can always properly try, like go to Mun or Minmus (the Moons) or even to other planets. I can't put into words how funny it can be to be flying up through the atmosphere and suddenly have a part explode that sets off all sorts, and if you've read this far then JUST GET THE GAME!!
Helpful? Yes No Funny
Captain Goujon
( 228.4 hrs on record )
Posted: June 24
Shamelessly kill Kerbals in the name of "science"

Flaoting helplessly in space has never felt so good, 10/10.
Helpful? Yes No Funny
Neumann
( 118.4 hrs on record )
Posted: June 24
KSP could possibly be the greatest game of all time. If you have never played it - you are missing out!
Helpful? Yes No Funny
Frizzy Freshnel
( 9.4 hrs on record )
Posted: June 24
Great game, i'd recommend this to people who want to achieve something difficult. Being a sandbox game, you can basically go anywhere with the crafts you build. Modding is also very amazing. Big thumbs up to squad. You can probably sink a few hundred hours in this.
Helpful? Yes No Funny
◄VĒŜŜ►
( 57.1 hrs on record )
Posted: June 24
12 ROCKET EXPLOSIONS OUT OF 10
Helpful? Yes No Funny
vpolder
( 325.6 hrs on record )
Posted: June 24
One of the best space sims I ever played.
Helpful? Yes No Funny
ᅚᅚᅚ
( 363.1 hrs on record )
Posted: June 24
ส์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์ส์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์ส์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์
Helpful? Yes No Funny
Slick Rick
( 519.4 hrs on record )
Posted: June 24
Orbital physics on point
Taught me how to space
Tried to make Jeb scared for hundreds of hours
Died for the sake of science on various celesstial bodies
Ruined every sci-fi movie (except The Martian)
Passed high school physics
Spent 500 hours actually learning things instead of being a potato

would r8 very gr8 88/8 m8
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
267 of 279 people (96%) found this review helpful
281 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
168 of 180 people (93%) found this review helpful
117 people found this review funny
Recommended
608.4 hrs on record
Posted: May 27
608 hours in:
I've built fighter jets
I've built ICBMs
I've built massive capital starships

Still can't build a damn space station
100/10
Was this review helpful? Yes No Funny
125 of 136 people (92%) found this review helpful
76 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
101 of 107 people (94%) found this review helpful
80 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
54 of 56 people (96%) found this review helpful
22 people found this review funny
Recommended
15.4 hrs on record
Posted: June 3
only played this game for a few hours and I have already learned more than I learn in a full semester of school.
Was this review helpful? Yes No Funny
73 of 87 people (84%) found this review helpful
86 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
121 of 187 people (65%) found this review helpful
196 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
33 of 40 people (83%) found this review helpful
43 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
24 of 29 people (83%) found this review helpful
3 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
20 of 24 people (83%) found this review helpful
5 people found this review funny
Recommended
109.5 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
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