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 (425 reviews) - 96% of the 425 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (30,437 reviews) - 97% of the 30,437 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.

137 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 (425 reviews)
Overall:
Overwhelmingly Positive (30,437 reviews)
Recently Posted
tomg
( 366.3 hrs on record )
Posted: June 27
I can't stop playing.
Helpful? Yes No Funny
Quoro
( 16.2 hrs on record )
Posted: June 27
It's truly awesome. Bought it on steam second time as a sign of appreciation for devs after gog and accidently spent another 16 hours of experimenting, constructing, piloting and kerbalcide.
Helpful? Yes No Funny
Fletcher St-Germain
( 19.0 hrs on record )
Posted: June 27
CRASHES A LOT

but is tons of fun
Helpful? Yes No Funny
ZimnyLech
( 69.9 hrs on record )
Posted: June 27
The most realistic, polished, incredible and addictive space flight simulator ever created.
Basically, take good science fiction, remove most of the fiction, and replace it with carefree destruction and lols.
10/10
Helpful? Yes No Funny
Raccoon
( 62.5 hrs on record )
Posted: June 27
1.build a spaceship
2.crash
3.improve the ship
4.crash again
5.repeat step 3 and 4 a few times
6.get your ship into an orbit around earth/kerbin
7.CRY because you feel proud of yourself and space is beautifull
8.realise that the pilot of the ship is stuck in space
9.jump from the spaceship down to earth/kerbin and survive the fall without paracute
10.do something totaly different the choice is yours
A game for people that like good games!
Helpful? Yes No Funny
WarriorneX
( 259.4 hrs on record )
Posted: June 27
Ok, first of all, this game is amazing! 11/10.

"The answer is yes.... it happend to me too.... a few days trying to get to the moon, got there and then after 300 failed attempt to land I started to question how the Apollo 11 landed soooo freaking easy!!!!!!!????? 0_o..... on the attempt 387 I was able to land.... but ran out of fuel.........endl"

Why 11 out of 10, because of the modding community behind it.
10/10 because the game is awesome, and you actually learn a lot of thing that to tell you the truth I would had love to be able to play this game back in 2004 when I was finishing my bachelor degree. All the math I learned during my academic career were refreshed in a few days, only because I wanted to know almost everything related to orbital science, delta V, and a few of other concepts that are part of the game but well you know, you will understand everything once you start to build rockets and try to get into an orbit for the first time and then when you try to rendezvous with a ship already in orbit.

If you want to build a crazy plane with random parts and you want to fly it around in the ksp center, without getting outside the atmosphere, you can do it, and it's ultra-mega fun to just plug your favorite controller, download a controller mapper or something more robust as paddstarr, download the Nedal's profile for ksp, and enjoy your flying. If by any chance your plane is barely able to keep going straight and start to move all over, there is a mod called fly-by-wire that will help you with the stability of the plane, or flying saucer.... there is a mod for almost everything. But you can also just play the game without any mod and the game is not missing anything, the mod are just there as an extra.

The game is marvelous, and I can't wait for it to make it to the ps4, which I believe will become available in the future.

This is my first review and if you are trying to decide if you should buy it. Then the answer is yes. Enjoy.
Helpful? Yes No Funny
driconmax
( 1,050.5 hrs on record )
Posted: June 27
The best space simulator game of all time! You can create your very own spacecraft with everything you want, and send it to the moon and beyond!
Helpful? Yes No Funny
The_Vulcan
( 70.4 hrs on record )
Posted: June 26
Its GOOD.
Read the other 30,000 positive reviews.
Helpful? Yes No Funny
Arkman575
( 105.8 hrs on record )
Posted: June 26
TL/DR at end

Where to begin...

One, this is not for a gamer. This is for a designer who will accept that he isn't perfect the first time around. You will not get to the moon in a good ship your first flight. If you do, you out-master a lot of people.

Pros:

Colorful envirnment, enjoyable humor, and the game runs quite well.

Realism isn't 100%, but it's the best I have seen recently. I mean, it's fun and you have to work at it.

Mods! Oh the mods!!! Doesn't take much to load a few when the games seems too easy or hard. If you can't get to orbit, try mecjeb. Will save your live.

Replayability, wanting to go further, never wanting to stop

cons:

Bit of a learning curve, and it will take time to know what you are doing.

QUICKSAVE!!!!!!! Trust me!!!

It's a killjoy when you lose, and for some it kills the game entirly if a multi-day project goes down without a backup


TL/DR: Good design game, great space sim

9/10

10/10 for a sale
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
437 of 457 people (96%) found this review helpful
467 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
194 of 210 people (92%) found this review helpful
117 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
171 of 182 people (94%) found this review helpful
143 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
100 of 105 people (95%) found this review helpful
41 people found this review funny
Recommended
15.6 hrs on record
Posted: June 3
This is Ground control to Major Jebl.
I'm stepping through the door.
And I'm floating in the most peculiar ways.
And the stars look very different today.
~10/10, great game.
Was this review helpful? Yes No Funny
102 of 122 people (84%) found this review helpful
111 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
61 of 73 people (84%) found this review helpful
75 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
42 of 46 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
40 of 48 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
174 of 278 people (63%) found this review helpful
266 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
13 of 17 people (76%) 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