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: Overwhelmingly Positive (21,956 reviews)
Release Date: Apr 27, 2015

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Recommended By Curators

"A perfect blend of science and slapstick, and a robust and compelling sandbox of possibility. Simply outstanding."
Read the full review here.

Recent updates View all (18)

May 1

KSP 1.0.2 is up!

Hi again,

Just a very quick update this time, version 1.0.2 is now up:

Changelog:

v1.0.2 ==================================================

Bug Fixes and Tweaks:

Thermal:
* Fixed ships potentially overheating when splashed down.

Parts
* Small tweak to Mk16 parachute drag.

As always, you can get the latest version from our KSPStore, GOG, or get auto-updated on Steam.

Happy Launchings!

Cheers

109 comments Read more

May 1

KSP 1.0.1 is Up!

Hi Again,

We've just published KSP v1.0.1. This is a small revision patch to address some of the most noticeable bugs we encountered since the release of 1.0.

Some of these we knew about for a while, but couldn't fix in time for the release (as we approach publishing time, the risk of code-breaking and delaying the entire release outweighs any benefits in the potential fix), others we found out about during the weekend livestreams, and some others we found from your own feedback.

This patch isn't meant to cover every single bug, of course, just the more relevant ones. We're going to keep on with the bugfixing and tweaking as we move into development of version 1.1.

You can check out the complete changelog in our forums.

As always, you can get the latest version from our KSPStore, GOG, or get auto-updated on Steam.

Happy Launchings!

Cheers

55 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
    • Processor:Core 2 Duo
    • Memory:3 GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:1 GB HD space
    Recommended:
    • OS:Windows 7 or 8 64 bit
    • Processor:Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:2 GB HD space
    Minimum:
    • OS:Snow Leopard (10.6)
    • Processor:Intel
    • Memory:3 GB RAM
    • Graphics:SM3 512MB VRAM
    • Hard Drive:1 GB HD space
    Recommended:
    • OS:Yosemite (10.10)
    • Processor:Intel Core i5
    • Memory:4 GB RAM
    • Graphics:SM4 1GB VRAM
    • Hard Drive:2 GB HD space
    Minimum:
    • OS: Linux (Most distros should work)
    • Processor: Core 2 Duo
    • Memory: 3 GB RAM
    • Hard Disk Space: 1.5 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:2 GB HD space
Helpful customer reviews
46 of 48 people (96%) found this review helpful
1 person found this review funny
73.6 hrs on record
Posted: May 22
It's been quite a ride. Four long years of development, cool stuff, accidentally education, and the Kraken... and here we are. One point oh (point whatever!) And oh, are things different! But that's all the past! Let's talk about the present.

This is a game in which you go to space repeatedly, success optional.

Most of the entertainment value in this game is either limited or boosted by your imagination. You can just throw some bits together, hit the go button and see what happens! What's that? There are Kerbals in there? I'm sorry, I couldn't hear you over the sound of my massive explosion device. Conversely, you can put things together in a very particular manner and create the perfect interplanetary shuttle. It's all up to you. Your sandbox is the solar system. Go play. Due to the nature of things and such, this game would be truly incredible in a classroom environment, yet it's just as fun alone at home.

Now, for the less sandbox-oriented among us (or just the people like me who enjoy progression,) there's a career mode! This time, you start out with the exclusive ability to make short range, manned, ballistic missiles! FOR SCIENCE! Seriously, you generate Science! from everything, and you use it to unlock more things to build better missiles to make more Science! Be careful though. Don't want to blow up too many bits, because you have funding to worry about now. You should also take care of your Kerbals to keep your reputation acceptable.

Also the camera shakes, there's complicated aerodynamics, there's thermodynamics, there's moresodynamics, there's orbital mechanics, there's resource mining (which you can MAKE FUEL with,) there's management, there's pretty explosions, there's good sound effects that are also deafening, there's accidentally education, and so much more for only some money!

However, the tutorial is absolutely useless and frustrating. Ignore it, fumble around for a while, and utilize the internet to learn what you must know when you decide that trial and error is so last era.

There's not really much else to talk about... All the other details are either not noteworthy, neutral, or better kept quiet... so...

Go build some intercon- advanced spacecraft.
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12 of 13 people (92%) found this review helpful
11.0 hrs on record
Posted: May 22
Pre-Release Review
How did i not write a review for the great game. I think it amazing to get to experience space travel with todays tech imaginations. I was born too late to discover the earth and too soon explore the stars. For now i have the internet with cat pictures and ksp
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8 of 9 people (89%) found this review helpful
385.5 hrs on record
Posted: May 23
Oh my Science....

This is... BY FAR....

My favorite video game of the current era.

Those who know me, know I'm a rabid Fallout and Resident Evil fangirl. I can't call this game my favorite yet (Fallout 2 still has this title by a steady grasp) but KSP is a very close follower.

To sum up the entirety of this game in a few phrases or memes....

This game = NASA + Lemmings.
KSP is hollywood rocket science....
collect ALL THE SCIENCE!

There are 3 modes of play. The first mode is sandbox. You get all the parts unlocked, you can build anything you can think of, and then explode it marvellously while trying to fire it up into space. The second mode, is Science mode. This unlocks the Tech Tree and the collection of science. Parts are restricted by the Tech Tree, visitable through the R&D building. Collecting science unlocks branches in the Tech Tree. This gives you access to more and more parts, until you're eventually at the end of the tree, and its basically like Sandbox mode. The third is Career Mode. Career is the fully unlocked version of the game, requiring you to balance limited parts (locked behind the Tech Tree, requiring the collection of Science), limited money (Rocket science is expensive! Ships now cost money, and you have limited funding. In order to get more money, you need to complete missions from the Mission Control building), and spontaneous explosive deconstruction.

The whole point of the game is to explore the Kerbol system. Its that simple. Build rockets, leave the planet Kerbin (third from the sun Kerbol), and visit all you can. The Kerbol System has 8 planets, Moho (like Mercury), Eve (Venus analogue), Kerbin (Earth-like), Duna (Mars rip-off), Dres (Small planet, light gravity, hard to land on), Jool (Jupiter wannabe), and Eeloo (Pluto if it was a planet!). Each planet has its own special features, moons, things to see, and difficulties in visiting.

The game has an INCREDIBLE modding community, which I recommend, and the YouTube community loves making crafts and blowing them up. I VERY MUCH invite you to watch Scott Manley's videos for learning Kerbal science and aerodynamics.... skills needed to blow up much less often than before!

The game still has its issues... I commonly find the Hell Kraken or ♥♥♥ Kraken (Community known bugs), but this may be due to the mods installed on my game. The Windows x64 version is horribly broken, but the other versions are great.
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5 of 5 people (100%) found this review helpful
1 person found this review funny
181.0 hrs on record
Posted: May 24
You know, when I first saw this game way back in early access, I thought, "Cartoony, throw away game, not worth the effort." But, then I researched a little, and watched a couple of episodes on youtube detailing game play.

I was more than intrigued. I bought the game in what was called early access beta, but it was already pretty polished. I think that was in versions .6 or so?

I became OK and landed on Mun and Minimus several times. Many, many times, actually, and maxed out science just by going to Mun and Minimus and getting every biome.

But, then I set the game aside. I didn't want to be burned out on it before it actually left Beta. I recently returned and almost ragequit. Many things have changed. Everything I thought I knew, I had either forgotten or didn't work anymore.

I have played it a lot the last few days. I have had a lot of successes and a lot of failures, but I am essentially back to where I was before I quit. The learning curve is pretty steep. Do you want to just fly out of the atmosphere? Fairly easy to figure out. Do you want to fly to one of the moons, land, and then take off with the expectation of getting back to Kerbin (Kerbal's Earth)? It's going to take a lot more knowledge.

I do recommend this game, but I have to agree with someone else. Unless you're an engineer by nature, you're probably going to need help at some point, because this game is not a child's game. It is tough, but rewarding.

I try not to look at too much on youtube because I don't want to spoil it for myself, but I am to the point that it is going to take a drastic rethinking of what I'm doing, or I am going to need to watch tutorials to get anywhere out of Kerbin's orbit and get back safely. I sent an unmanned probe to Duna (basically Kerbin's Mars). I was not able to bring it back. Thankfully, no Kerbals were killed on that adventure.

Yes, I'd say get this game. If you see it on sale, then grab it immediately. I guess I have put 170 hours in to it. I'll probably put thousands into it before it is all over.
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5 of 5 people (100%) found this review helpful
4 people found this review funny
52.7 hrs on record
Posted: May 24
couldn't land on the peak of the mountain they wanted me too.. landed the jet and drove to the top of the mountain 10/10
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4 of 4 people (100%) found this review helpful
67.0 hrs on record
Posted: May 23
Pre-Release Review
There is something really cool about this game... But I have a terrible memory and can't quite remember it.

Could it be building your own piece of space debris, launching it with the hopes that it won't quite crash into the surface of the planet, and then setting your kerbal, who is likely quite dizzy or nauseated (maybe even lobotomized), into the surface of the planet and claiming said planet for the glory of SCIENCE! No, that sounds pretty cheesy...

Maybe it was Building a space station piece by piece and then attempting to dock these seperate pieces at precise intervals, only to accidentally fly through the near complete station because you didn't un-accelerate time fast enough to slow down (so much is wrong with that). No that sounds frustrating...

Oh Oh, I know... It is undoubtedly creating a series of unmanned orbiting vehicles that all orbit in such a manner that they would allow instantaneous communication across the star system of Kerbin if there was any need for such a thing when you are but one of a handful of signs of habitation on your home planet let alone the Kerbin System. No that sounds tedious...

Oh yes, that is it... it is using your ineptitude at physics to break the physics engine attempting to create all of your science fiction romanticisms like the Death Star, a space boat, a Gundam, Star Destroyer, a Halo Station (or ringworld as I would prefer), any number of space vehicles in science fiction, as well as inaccurate replicas and jury rigged models of today's human cosmonaut program.

Well whatever you enjoy, be it making a series of ICBMs and attempt to destroy your own base, or create complex rocketry designs to reach the distant planets, or even capture an asteroid and give Kerbin ANOTHER moon, or even giving Mun a moon (moon-ception) You can do just about anything you can imagine in KSP. Except the things you can do in game like COD or GTA, well, except kill people, but hey accidents happen. Especially when you strap several hundred tons of rockets and fuel on haphazardly in an attempt to get into orbit.

So yeah KSP, flight sim, orbit sim, crash sim, not an explosion sim, non-newtonian physics sim, or underwater exploration sim... I mean, just get this game... its not rocket science... well it doesn't have to be.
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4 of 4 people (100%) found this review helpful
1 person found this review funny
50.4 hrs on record
Posted: May 24
I'll play this game for 5 hours straight and get absolutely nowhere and I love it. Buy it. It's awesome.
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4 of 4 people (100%) found this review helpful
306.5 hrs on record
Posted: May 25
This game is the most revolutionary space simulator that I have ever played. This game has genuinely made my life better in so many ways. The invention of this game is like the invention of Penicillin to me!
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3 of 3 people (100%) found this review helpful
1 person found this review funny
4.0 hrs on record
Posted: May 23
Best Space and Flight Simulator ever.

This is one of THE BEST original games ever.
The Kerbals are awesome.
You learn the mechanics,physics, rocket science, and aerodynamics.
You can make your own Spacecraft with crazy stuff on it !
You can also add mods to expand possibilities.
It's a pretty cool Sandbox and you can build crazy and amazing stuff easily.
I've never seen a game like this.

11/10 Pure Genius :D
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3 of 3 people (100%) found this review helpful
225.1 hrs on record
Posted: May 25
Possibly one of the best games to be released in the last 10 years. I have for a very long time dreamed of going to space and this game only strengthen's that desire. Here's my analysis of this game.

Graphics: Have improved dramatically compared to what they were back when I started playing. The Mun has changed shape for crying out loud!

Gameplay: With the recently improved aerodynamics, The gameplay is superb. Watching your own rocket/spaceplane tumble back to Kerbin is an amazing feeling.

Other: Contracts are wonderful. However, they feel a little repetitive in the late game. The tech tree is fun to explore and great for first time players. When multiplayer comes out I wont be surprised if I rack up 2000+ hours on here. If I were a therapist I would recommend this game to my patients because of how great you feel when you finally land on the Mun that required 5 Kerbal's lives to get there, and then planning a rescue mission!

The rundown: Buy this immediately.
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3 of 3 people (100%) found this review helpful
277.5 hrs on record
Posted: May 26
A good friend told me about KSP a while back when it was in one of its beta stages. I fell in love with it then and since their full release I've fallen in love with it all over again. Great title and I just can't say enough good things about it.
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4 of 5 people (80%) found this review helpful
1,114.9 hrs on record
Posted: May 23
Be NASA for Green people no surviors....... goood game
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2 of 2 people (100%) found this review helpful
1 person found this review funny
21.3 hrs on record
Posted: May 23
I think it is time to write a review... Let me keep it short.

Get out of Atmosphere crash back down. :)
Try to get into orbit... Failed 10 times... :P
Get into orbit! YAY! Wait how do I get back down?!?!
Get back down after 2 more attempts.
Finally get to Mun... Came in too fast. BOOM!

R.I.P. Jebidiah Kerman 2015-2015

10/10 Would Crash into Mun Again
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2 of 2 people (100%) found this review helpful
366.3 hrs on record
Posted: May 24
Kerbal Space Program, very unique of its kind, no other game is like this.
It has gone through a long span of development and came out quite nicely.

What KSP 1.0 has to offer is a proper and balanced career mode, functional aerodynamics,
reentry heat as a default, deep space refueling, female kerbals and a big pile of other cool stuff.
Still not enough content? No problem, you can always look for some handy mods from online.
Here's a list for a few useful ones:
Kerbal Engineer Redux (a must have mod!), EnvironmentalVisualEnhancements (still working),
Kerbal Alarm Clock and
Chatterer (makes your game more lifelike)
Also a multiplayer is a planned feature, which I am really looking forward to, like many others.

So yeah, if you like space and exploring why not to combine those two and have space exploration.
Just go already and make your own space program!
I really recommend this game from the bottom of my heart to anyone who likes space!

(Oh, and for the newbies, take a look of this "Career Mode Guide For Beginners" series run by Scott Manley, he is an expert trust me)
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3 of 4 people (75%) found this review helpful
1 person found this review funny
100.4 hrs on record
Posted: May 20
This is the best game out there. Buy it. Read other reviews for a proper review. JUST BUY IT. And buy a Jeb plushie
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3 of 4 people (75%) found this review helpful
1 person found this review funny
235.5 hrs on record
Posted: May 24
This is the best game on steam (and it survived early access)
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4 of 6 people (67%) found this review helpful
167.0 hrs on record
Posted: May 21
Great learning game. Incredibly fun once you get into the swing of interplanetary travel.
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5 of 8 people (63%) found this review helpful
8.1 hrs on record
Posted: May 25
Sex Adventures With My Pet Cat Limbo

It was 1986 September the 9th i found my Friend again (my pet cat limbo) he was acting all weird, didnt know why but i still carried on. i eventually got to the point where i had to stop, unfortunately the closest place to stop was the African porn beach you know.. the chair the tractor the two men... it was wrong, dirty, horrible, i had to leave! but i was just to tired and hungry! i spent the night there.

1986 September the 10th later on i arrive at my grans house realising she was recording her latest sex adventure (sex adventure 5) she was really insisting to get me to join one of her scenes, i didn't want to but in return she said she will give a little blowy so i accepted it, the scene i had to do was probably the dirtiest in her film. u know a little bit lickin a little gay a little grandma ♥♥♥♥in. oh yea did i forget to mention my grandma is 89! she is really active for age i know right. so any way after she finished doin her stuff she asked if i wanted to stay a bit longer, (i was guessing because she wanted me to do more scenes with her, you know get a bit more young flesh in her film), but any way i said to her “no cause i was going on my adventure of my own (and did a little wink)”. i found my self a little inn so i could spend the night and fortunatley it was a nice comfortable inn. i spoke to the receptionist sayin i had a rough day so i needed a good bed room for a couple nights.. when i was saying that he seemed a bit.. umm never mind. so he way being particularly kind to me and gave me a discount, i got the room for free!

1986 September the 11th i had to spend some time in town because i rented the room for a couple days, 3 nights to be precise.The next day the receptionist asked me to have sex with him so i agreed to do so. The next day i woke up drunk with a guy next to me he had a pink hat , shoes ,pants i thought i was i was in a horror movie , there was mayo on my face and a lot of but i didn’t know why it was so sticky and white so i just licked it off while i was eating break fest. The guy also had mayo on his face as well i didn’t know why so i just licked it off him and pushed him out the window while he was sleeping i got so scared and i already have a wife ( her name was ♥♥♥♥♥♥ )

1986 september the 13th my wife called me so i just told her the truth so she wanted a divorce and told me to go back to my boyfriend and also said that I'm a ♥♥♥♥ so i told her that i love her too. In the afternoon the receptionist came back to my room and asked for more and i said to him too bring it on ( I was also drunk at a time ). So we made a sex tape with my granny and i send it to my wife to show her how much fun i had today.

The next day my wife calls me and says that i was like a jaguar in that sex video i sent her so she asked me to come back with her with my pet limbo to have a ♥♥♥♥ because she missed my big ♥♥♥♥.So i packed up and went to the train station to go back to my wife i could wait till i will ♥♥♥♥ that ♥♥♥♥♥. Half way through the journey i realised i lost my pet limbo and quickly jumped out the train and went looking for him.

1986 september the 14th i woke up on a huge grass feild with a thing stick in my back, but at the
The next morning i woke up drunk and naked the first thing i see is me and my ♥♥♥♥ stuck inside limbos bum whole i couldn't move its like i was frozen i couldn’t feel my ♥♥♥♥ so i just cut it off with scissors then i grabbed my cat limbo to go and find my clothes. i walked across the big barren field in search of my clothes, but nothing was to be found. i came across several

1986 september the 30th I remember i was really horny that day so i decided to call a ♥♥♥♥ to come and ♥♥♥♥ me and i did. After I ♥♥♥♥ed the devil out of that ♥♥♥♥ i was still so horny so i had a massive wank in my shower.
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1 of 1 people (100%) found this review helpful
131.9 hrs on record
Posted: May 25
It's a pretty good game! Lots of fun and tiny features. Don't let the attention to detail fool you; it's a massive game. It's quite excellent and very enjoyable. 10/10!
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1 of 1 people (100%) found this review helpful
96.2 hrs on record
Posted: May 25
I have been playing this game for years, and it has always been the game which comes to mind when considering what the best game is. 10/10 without words to describe
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