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 (452 reviews) - 94% of the 452 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (31,398 reviews) - 97% of the 31,398 user reviews for this game are positive.
Release Date: Apr 27, 2015

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Buy Kerbal Space Program

 

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.

324 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 (452 reviews)
Overall:
Overwhelmingly Positive (31,398 reviews)
Recently Posted
Affronter
2.6 hrs
Pre-Release Review
Posted: August 26
After all this time I still can't orbit/land on Mun in the tutorial.

10/10 for KSP crushing my dreams of ever becoming a real astronaut.
Helpful? Yes No Funny
Ka-ou-vi
47.2 hrs
Posted: August 26
Build a rocket, fail, build another, fail. Watch a video about astrophysics by 12 year old boy. Be ashamed. Build another one with more knowledge, fail. Again, AGAIN and AGAIN. More shame....

10/10 thou! :)
Helpful? Yes No Funny
Mistyk
42.9 hrs
Posted: August 26
-Landed on Minmas in my exessively tall rocket
-Landed on steep slope
-Began desperately tapping wasd to stay upright
-Realised SAS could take over from here
-Slid down slope for half an hour
-Got broed and wrote this review

10/10 would slide again
Helpful? Yes No Funny
g_gowell
1,154.1 hrs
Posted: August 26
Best "game" ever. It really isnt a game, its a physics engine with randomly determined objectives generated for you to complete.
Helpful? Yes No Funny
bengerrans
64.3 hrs
Posted: August 26
KSP is a game that allows you to delve into the world of Space exploration. Risking the lives of poor Kerbals, who unfortunately know litte else (or even little at all), in persuit of scientific discovery and a solar system-wide space program.

From simple rockets to giant space stations to whacky spaceplanes, the possibilities are endless. Kerbin truly is your Oyster - what's up to you is how far beyond you wish to go!

With an active modding community, there are plenty of other options for fine-tuning your gameplay, giving even greater scope for discovery of all sorts of things. Would recommend to anyone and everyone.
Helpful? Yes No Funny
Nahr Royalic
2.7 hrs
Posted: August 26
Scott Manley
Helpful? Yes No Funny
TheAkis
506.2 hrs
Posted: August 26
Learnt more about Astrophysics and Rocketry in this game than my whole life. And if you are wondering if you should buy it, just go for it. You will not regret it.
Helpful? Yes No Funny
PEOOWPEOOW
408.3 hrs
Posted: August 26
Amazing Game. I've never played anything else that lets you feel so good when you achieve a goal. It's because this game is hard to learn, but when you see the ♥♥♥♥-eating grin on your kerbonaut faces you don't feel so bad about the mass casualties your space program is creating.
The mass explosions you make when a rocket fails is part of the fun, and then eventually you'll make it to orbit and maybe land on the moon or go further. Yet EVERY TIME you make one of those goals you feel like you are the greatest rocket scientist who ever lived and the hours of failed missions all become worth it.

You do however need to be prepared to unlearn whatever you thought you knew about rocketry and orbital mechanics, learning this made me realise how little I knew about those things.
Helpful? Yes No Funny
SNSTAR
24.2 hrs
Posted: August 25
He, he, he, make vehicle, crash, kill crew, restart.
Helpful? Yes No Funny
rmetheney
24.4 hrs
Posted: August 25
Just a simple yet awesome game.Nothing wrong it...just great.
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
81 of 84 people (96%) found this review helpful
93 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
78 of 84 people (93%) found this review helpful
42 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
50 of 53 people (94%) found this review helpful
54 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
30 of 30 people (100%) found this review helpful
37 people found this review funny
Recommended
2,014.9 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
27 of 28 people (96%) found this review helpful
30 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
22 of 23 people (96%) found this review helpful
33 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
20 of 20 people (100%) found this review helpful
3 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
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
17 of 18 people (94%) found this review helpful
10 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
9 of 11 people (82%) found this review helpful
7 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