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 (440 reviews) - 94% of the 440 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (31,364 reviews) - 97% of the 31,364 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.

319 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 (440 reviews)
Overall:
Overwhelmingly Positive (31,364 reviews)
Recently Posted
TheWebbedCreeper
23.5 hrs on record
Posted: August 23
I love ksp, i went too the moon, flew, crashed, burned, died, exploded,ect... BUT THATS ALL OK RIGHT, RIGHT?!
Helpful? Yes No Funny
Pvt. Nilsson [29th ID]
72.6 hrs on record
Posted: August 23
Sent a mission to Eve, got stranded there, sent a recover mission, got stranded again. At least Jeb has a friend now.

11/10 would kill Kerbals again.
Helpful? Yes No Funny
PrincessGoody95
104.2 hrs on record
Posted: August 23
This is honestly the best game i have ever played! The amount of things you can do are endless.
Helpful? Yes No Funny
Neldonax
705.3 hrs on record
Posted: August 23
Oh my, the game is so fun!I've been playing around with tanks (no mods) and aircraft carriers! Not to forget SSTOs!
Helpful? Yes No Funny
Downtown23
55.3 hrs on record
Posted: August 23
Fun.
Helpful? Yes No Funny
Swami Bastard
414.1 hrs on record
Posted: August 23
This Game should be used in schools. Nuff said 11/10
Helpful? Yes No Funny
SG
39.7 hrs on record
Posted: August 23
Очень интересная игра. Затягивает. Однако в каждой игре есть свои недостатки, и здесь они выражены малым колличеством деталей. Многие скажут: Куда тебе больше? Но мне кажется, что для такой игры, да ещё с такими возможностями, всяких крыльев, кабин, баков для топлива, двигателей и т.д. нужно побольше.
Helpful? Yes No Funny
Fighter00HD
110.8 hrs on record
Posted: August 23
Kerbal Space Program is one of the greatest space simulations I have ever played. When I was a child, i saw the movie Apollo 13 and after that, i dreamed of sending my own spaceship to moon. In this game you will get a whole sun system and a very complex simulation, particular the physics are so good, sometimes let forgetting me, this is just a game.

I really have to recommend this game to all fans of space!
Helpful? Yes No Funny
JonRah
106.1 hrs on record
Posted: August 22
I finally lived my life long dream of launching a crew of astronauts into oblivion to starve to death.

Most people play this game to do fancy things like landing on Mars, or studying the surface of a planet but that's all easy stuff. Me on the other hand, I had the difficult choice of murdering a crew of three without any reason and I took that chance.

Now they float in oblivion hoping they can grow potatos in their feces.

10/10 solid game
Helpful? Yes No Funny
Nightshine Recorralis
1,650.5 hrs on record
Posted: August 22
Excellent game for the time that I've owned it. The possibilities in-game, whether vanilla or modded, are endless. I had to take a break from KSP for a while, but after returning, this game once agins took its rightful place as my favorite PC game.

There are some issues though, such as PhysX being limited to the CPU, and the various gameplay bugs, but the game itself is so much more than what it seems, no matter how low the issues can pull it down.
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
63 of 64 people (98%) found this review helpful
64 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
63 of 66 people (95%) found this review helpful
49 people found this review funny
Recommended
70.5 hrs on record
Posted: July 25
I have a love-hate relationship with this game.
It's the most rewarding game I've ever played.
It's also made me want to kill myself when I forget to add parachutes and don't realize until I'm re-entering Kerbin.

I love this game.
**** this game.
Was this review helpful? Yes No Funny
55 of 58 people (95%) found this review helpful
29 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
41 of 42 people (98%) found this review helpful
45 people found this review funny
Recommended
232.1 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
20 of 20 people (100%) found this review helpful
21 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
21 of 22 people (95%) found this review helpful
31 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
17 of 17 people (100%) found this review helpful
2 people found this review funny
Recommended
26.8 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
18 of 19 people (95%) found this review helpful
4 people found this review funny
Recommended
777.2 hrs on record
Posted: July 28
I have spent so much time on Kerbal Space Program. This is one game I keep coming back to after years of play. The sandbox nature of the game combined with the numerous parts available leads to endless possibilities for Rockets, Planes, Space Probes, Boats, Trucks, Cars, and really anything you can think of. Take the base game and add mods like Infernal Robotics and Tweakscale and you have so much more to do. Then add an additional 150 mods from CKAN and there is literally no end to what can be accomplished. 10/10
Was this review helpful? Yes No Funny
15 of 15 people (100%) found this review helpful
5 people found this review funny
Recommended
20.9 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
8 of 9 people (89%) found this review helpful
6 people found this review funny
Recommended
91.8 hrs on record
Posted: August 2
Yay! I'm a rocket scientist now.
Was this review helpful? Yes No Funny