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 (534 reviews) - 93% of the 534 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (31,502 reviews) - 97% of the 31,502 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.

331 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.

173 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:Mountain Lion (10.8)
    • 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 (534 reviews)
Overall:
Overwhelmingly Positive (31,502 reviews)
Recently Posted
Sebine
0.2 hrs
Posted: August 28
I like how the game right now is 40 dollars and half off for 20 dollars

But when I bought it... it was 30 dollars and reduced to 18 for a sale...

Funny how the price of KSP keep going up, despite it going on sale..
Helpful? Yes No Funny
Dekatowick [GD]
127.2 hrs
Posted: August 28
Such Kerbals. Many funny.
Helpful? Yes No Funny
Bucky
335.9 hrs
Posted: August 28
build first space-station, decide to build second space station on the exact same orbit but headed in the opposite direction. watch nervously as they nearly collide every few minutes. SCIENCE
Helpful? Yes No Funny
pr0fession
63.2 hrs
Posted: August 28
probably one of the best games ever and i cant even get into orbit correctly
Ive recommended it to all my friends just because of how fun it is
Helpful? Yes No Funny
Onyy
92.4 hrs
Posted: August 28
10/10 would suffer an existential crisis while failing to make it to the mun without cheating again.
Helpful? Yes No Funny
texant
4.8 hrs
Posted: August 28
This game is one of the best out there. As long as you like space you will definintly be pleased with this game. They should charge more. (For some reason It shows that I've only played for 4 hours, but I have played around 300 to 400 hours, if not more)
Helpful? Yes No Funny
Pixel
1.0 hrs
Posted: August 28
space
the final kerbteir
Helpful? Yes No Funny
brufleth
401.9 hrs
Posted: August 28
This game is fantastic and with mods you can get even more out of it! Learn about orbital mechanics and have fun doing it. Build the most obnoxious missle you can concieve of. See how far you can fling Kerbals into space. The possibilities are endless and with the different game modes and settings it can be as challenging or mindlessly ridiculous as you want.
Helpful? Yes No Funny
Nathan
536.4 hrs
Posted: August 28
Best Space sim-game ever
Truly amazing
Helpful? Yes No Funny
Giorgio
114.1 hrs
Posted: August 28
This is one hell of an awesome game, you can play it VERY seriously and go to other planets, make space stations, and much much more. If you don't want to play it seriously, it's still an awesome game! you can derp around, find bugs, make planes, spaceships,VTOLs, And way more.
Also, THE MODDING COMMUNITY IS AWESOME!
You can find it everything: from a banana in a canister to extra planets & solar systems! The developers of the game are extremely open to mods, and even have a direct link to the official modding website, curse

Really enjoy this game, and even though it no longer is my main game, i still play it from time to time and find it extremely amusing!
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
287 of 306 people (94%) found this review helpful
323 people found this review funny
Recommended
118.4 hrs on record
Posted: August 12
Builds rocket that can leave launchpad

Forgets parachute


Builds rocket that can leave atmosphere

Forgets heatshield


Builds rocket that can go to the mun

Forgets landing legs


Builds rocket without forgetting anything

Forgets real life


Remembers parachute
Was this review helpful? Yes No Funny
304 of 351 people (87%) found this review helpful
394 people found this review funny
Recommended
2,015.6 hrs on record
Posted: August 12
Not sure if I'm into this game... Need to play a bit more to confirm...
Was this review helpful? Yes No Funny
139 of 153 people (91%) found this review helpful
130 people found this review funny
Recommended
544.2 hrs on record
Posted: August 12
I've learned at lot more about space in this game than I did in school.
I also kept missing school because I was playing it instead.
Was this review helpful? Yes No Funny
184 of 215 people (86%) found this review helpful
104 people found this review funny
Recommended
256.7 hrs on record
Posted: August 10
This game made me discover Scott Manley. 10/10 - Would discover Scott Manley again.
Was this review helpful? Yes No Funny
130 of 149 people (87%) found this review helpful
113 people found this review funny
Recommended
233.4 hrs on record
Posted: August 5
1 hour in: Bookmarked useful orbital manuvers...
10 hours in: Put sitcky note reminders on screen...
50 hours in: Doodled rocket designs on the back of any avalibe piece of paper...
100 hours in: Drew the Kebin system on desk for mission planning...
200 hours later: Wrote mission plans and equations on walls...

10/10 Would deface walls again.
Was this review helpful? Yes No Funny
37 of 39 people (95%) found this review helpful
4 people found this review funny
Recommended
29.6 hrs on record
Posted: August 10
Ok, i've got lots of thinks to say about KSP, but I'll try to be clear, so let's begin!
This game nowadays is the best flight simulator i ever seen.
The potentials of this game are endless, you can do everything you want!
But this game wouldn't be the same without its community.
The KSP's comunnity is on of the best comunnity in the game's world!!
Seriously! I don't have many hours on the game (I hope not for too long ;) but i've never seen rude persons (yes, you'll say "This game is only Single Player!") but, trust me, the community is amazing!
I'd like to thank everyone who helped me when I started playing.
There are tons of useful mod, and if you have any questions, certainly there will be an answer in some forums or in some webpage.
Buy this game absolutely, specially if you are smart and you like to planning and studying the wounderfull game's mechanics.
Was this review helpful? Yes No Funny
41 of 51 people (80%) found this review helpful
50 people found this review funny
Recommended
218.2 hrs on record
Posted: August 1
Be Jebidiah Kerman
You cannot control your destiny
You ride rockets to infinity
and beyond you crash

Be Me
Build rockets that have no sense
Somehow it orbits
start the descent
heat builds
landing gear destroyed and lost to the inferno
deploy chutes
first chute gone lost in the flame
second chute holds but does not slow
third deploys
the last hope
hit the ground and the science pod explodes
but hey, Jeb is ok!
Was this review helpful? Yes No Funny
43 of 58 people (74%) found this review helpful
23 people found this review funny
Recommended
23.2 hrs on record
Posted: August 16
< Be me
< Download KSP
< Launch ♥♥♥♥♥♥ space shuttle
< Stage it incorrectly, first Kerbal dead.
< Google "KSP Tutorial"
< See Scott Manley KSP Tutorial for beginners
< Watch entire series
< Go back into game
< Im an expert now, NASA, sign me up
< Launch space shuttle, get into orbit
< Success
< Want to go to the Mun
< Go to the Mun after days
< Start to draw blueprints for space shuttles in class
< Come home, make shuttle, go to Mun once more.
< Bring home space rocks
< Apollo 18 all over again c;

jk

< Want to go to other planet
< Make space station, modeled after the ISS
< Decide to actually buy game from steam


< Launch ♥♥♥♥♥♥ space shuttle.

11/10 - Would launch ♥♥♥♥♥♥ space shuttle again.

BUY THIS GAME NOW.
Was this review helpful? Yes No Funny
18 of 22 people (82%) found this review helpful
9 people found this review funny
Recommended
249.0 hrs on record
Posted: August 27
Who needs No Man's Sky when you got KSP?
Was this review helpful? Yes No Funny
19 of 24 people (79%) found this review helpful
19 people found this review funny
Recommended
139.9 hrs on record
Posted: August 13
- built rocket
- forgot to stage it correctly
- Jeb dies, (again... for 25th time), on launch pad
- Jeb's family rises and revolts
- new rocket.... Aimed at Space Center, (THIS IS FOR JEB!!!)
- Conflict spreads through out solar system
- War.... War Never Changes...

10/10 , would start war on kerbin again!
Was this review helpful? Yes No Funny