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:
Overwhelmingly Positive (380 reviews) - 96% of the 380 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (30,381 reviews) - 97% of the 30,381 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.

127 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.

166 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:
Overwhelmingly Positive (380 reviews)
Overall:
Overwhelmingly Positive (30,381 reviews)
Recently Posted
Sky Aklost
( 5.5 hrs on record )
Posted: June 26
ส์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์็์ํ์ั์ํ์๋์ํ์ั์ํ์่์ํ์ั์ํ์๋์ํ์ั์ํ์
Helpful? Yes No Funny
123Nick
( 533.2 hrs on record )
Posted: June 26
i installed ubuntu linux in a dualboot setup just so i could play this game with all the mods in the world.

it was totally worth the immense hassle

10/10
Helpful? Yes No Funny
rufle23
( 12.2 hrs on record )
Posted: June 26
Even though it's taken me about 12 hours just to start getting the hang of this game, I have to say it's still quite great. Also, the training scenarios are really helpful.
Helpful? Yes No Funny
Don't read this
( 26.5 hrs on record )
Posted: June 25
Played 26 hours in two days
So am I supposed to eat or drink or something?
My stomach is vibrating my whole body and I feel funny.
Jebediah made it orbiting around the earth for like twenty years with no food or water.
Helpful? Yes No Funny
Morebore
( 338.0 hrs on record )
Posted: June 25
Great sim if you love space or love to build things such as spacecraft or aircraft so if you play this game let your imagination free

PS Don't forget your struts
Helpful? Yes No Funny
PixelizedGaming0
( 297.3 hrs on record )
Posted: June 25
I love the creativity in the gam as well as the easy modding capability.
Helpful? Yes No Funny
Other Barry
( 2.3 hrs on record )
Posted: June 25
Got game recommended by friend.
"I'll check it out"
Several hours later
"Why is it dark out?"

10/10
Helpful? Yes No Funny
Matt_the_neko
( 7.0 hrs on record )
Posted: June 25
This game is very fun and great for anybody that loves technololgy, science, and space. <3
Helpful? Yes No Funny
speedy-dreamer
( 21.0 hrs on record )
Posted: June 25
freaking amazing i am speachless
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
352 of 368 people (96%) found this review helpful
392 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
206 of 222 people (93%) found this review helpful
145 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
143 of 152 people (94%) found this review helpful
116 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
156 of 170 people (92%) found this review helpful
94 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
81 of 85 people (95%) found this review helpful
31 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
88 of 105 people (84%) found this review helpful
101 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
51 of 60 people (85%) found this review helpful
58 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
33 of 37 people (89%) found this review helpful
6 people found this review funny
Recommended
111.2 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
35 of 42 people (83%) 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
151 of 240 people (63%) found this review helpful
236 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