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 (439 reviews) - 94% of the 439 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (31,405 reviews) - 97% of the 31,405 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.

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 (439 reviews)
Overall:
Overwhelmingly Positive (31,405 reviews)
Recently Posted
zoroastrogt
29.0 hrs
Posted: August 26
I totally love this game.
Helpful? Yes No Funny
krimsalt_
187.5 hrs
Posted: August 26
Product received for free
BUY THIS GAME!!!!!!!! BUY THIS GAME!!! I DON`T HAVE TIME TO MAKE A FULL FLESHED OUT REVIEW BECAUSE THIS GAME IS APPARENTLY GOING ON SALE, SO BUY THIS GAME!

Pros:
- owning this game is the best
Cons:
- not owning this game is the worst
Helpful? Yes No Funny
Vintage
387.1 hrs
Posted: August 26
KSP is a blank slate waiting to be populated with your own creations and designs. As someone who is interested in real orbital mechanics and rocketry, it was very exciting to see a game that incorporates this on a smaller, easier to tackle scale. Arcade space games that allow you fly as if you were in the atmosphere are fun, however lack a challenge, as you just point your ship where you want to go, and you're there. Planning your trajectories, conserving fuel, and keeping Jeb alive makes for a unique, challenging, and rewarding experience. It is often the missions where issues arise that are the most interesting. Landing on the Mun is plenty fun, but creating a ship to save Jeb with is always the most entertaining. The mod support is great as well, as the developers openly support modding and endorse creators on their social media and other outlets.

9.5/10, would save Jeb from Mun again and again.
Helpful? Yes No Funny
Breadfish
19.4 hrs
Posted: August 26
Because of this game I nailed the astrophysics section of my GCSE exam and ended up with an A*. Enough said.
Helpful? Yes No Funny
Dexmix
85.4 hrs
Posted: August 26
!
Helpful? Yes No Funny
J_A_Y
86.9 hrs
Posted: August 26
kerbal space program is an amazingly fun and addicting game about building and flying rockets. But if you get board of building rockets, it's a game about building and flying planes! You should tottaly get this game!
Helpful? Yes No Funny
Rainbow Dash
834.9 hrs
Posted: August 26
A fun space game and worth a try especially if you like games like Minecraft.
Helpful? Yes No Funny
\F5D/ CaRboNtOrNaDo
8.1 hrs
Posted: August 26
You don't often get the sense of achievement and exploration Kerbal Space Program offers for its price-tag. After you manage to get around the learning curve you'll find an immensely educational and fun game. You can't truly call yourself a space enthusiast and miss out on that one. After all, how hard can rocket science be?
Helpful? Yes No Funny
NobleQuester
24.1 hrs
Posted: August 26
This game is so great and educational! I am such a noob and still love it! It does take some patience to learn, so do the tutorials, but once you do, it will not dissapoint.

ALso really like the music!
Helpful? Yes No Funny
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
Most Helpful Reviews  In the past 30 days
86 of 89 people (97%) found this review helpful
99 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
80 of 86 people (93%) found this review helpful
44 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
55 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
39 of 40 people (98%) found this review helpful
46 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
28 of 29 people (97%) found this review helpful
31 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