In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Recent Reviews:
Very Positive (172) - 88% of the 172 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (44,278) - 90% of the 44,278 user reviews for this game are positive.
Release Date:
Apr 27, 2015

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Includes 2 items: Kerbal Space Program, Kerbal Space Program: Making History Expansion


Recent updates View all (57)

May 23

KSP Loading... Breaking Ground under the spotlight!

Welcome to our official newsletter, KSP Loading…! Do you want to learn about all the current developments of KSP? Here’s the place to be, so let’s get started!

Breaking Ground Expansion

With the release of the Kerbal Space Program: Breaking Ground Expansion just around the corner, our team is working very hard to wrap up the final details for this exciting DLC. We also thought this would be a good opportunity to dive into a little bit more depth and give you a better idea of what you can expect in Breaking Ground.

As we mentioned previously, this DLC is all about exploration, experimentation and technological breakthroughs. We want to give you more reasons to explore Kerbin’s solar system, more things to do while you’re on a celestial body and exciting new robotics parts that add a whole new level of complexity allowing you to build even more incredible crafts.

Deployed Science

This feature will allow you to deploy experiments on the surface of celestial bodies to take measurements over time. You will need to bring these experiments with you, unpack them from storage containers on your craft and set them up to run. In order to do so you will need to place a central station, one or more power generating devices and possibly a booster antenna to get your science base set up. The experiments and power generators will run better if the right kind of Kerbal sets them up, thus giving you more reasons to bring Kerbals with different professions on an adventure.

We wanted to broaden the possibilities for future development, adding a time-based mechanic with deployed science, which also introduces inventory into stock KSP.

Let’s look at the equipment available for Deployed Science:

Probodobodyne Experiment Control Station

This part is crucial if you want to generate any useful data. Acting as the hub for all other experiments, the Experiment Control Station will distribute and control both power and data from nearby deployed parts, as well as coordinate the transmission of science back to Kerbin.

Mini-NUK-PD Radioisotope Thermoelectric Generator

No science base will run without power, and the Mini-NUK-PD Radioisotope Thermoelectric Generator will provide plenty of power to run a central station and deployed science experiments. If deployed by an engineer it will more efficient, if they are a high level one then even more.

OX-Stat-PD Photovoltaic Panel

An alternative power generator is the OX-Stat-PD Photovoltaic Panel, which will also be more efficient when properly set up by a trained engineer.

Communotron Ground HG-48

Although the Experiment Control Station has its own data transmission device, if you’re on a faraway planet, you might need to bring the Communotron Ground HG-48 antenna with you to boost the signal of your deployed science base.

Go-ob ED Monitor

The Goo Observation: Extended Duration Monitor watches the always enigmatic Mystery Goo for a long period of time on a planetary body. As with all the other deployed science experiments, the data collection speed will be increased when placed by a scientist, especially a ranked-up scientist.

PD-3 Weather Analyzer

This multi-function experiment gathers data on wind, pressure, temperature and humidity to generate a picture of the planet’s climate model over time. Naturally it will only function on a planet with an atmosphere.

Ionographer PD-22

This experiment allows Kerbals to analyze different particles and radiation incident on planetary bodies with no atmosphere.

Grand Slam Passive Seismometer

Unlike other experiments, the Grand Slam Passive Seismometer only operates under one condition… when controlled seismic events are created by crashing something into a planet. In addition to the excitement and fun of smashing things, you’ll collect data instantaneously with this device.

Click here to see all images of the Deployed Science experiments in high-res.

Surface Features

Surface features add a new component to the exploration of planets and satellites in the KSP solar system. These are items of scientific interest scattered across all celestial bodies. These features include meteorites, craters, mineral formations, and even stranger planetary oddities. Surface features vary in size and Kerbal astronauts will be able to pick up and return the smallest of them for study back at KSC. However, larger ones will need to be scanned and analyzed on-site by the newly developed Rover Arms.

Exploring celestial bodies and using rovers has never had as much value as we would have liked, and while the real Opportunity is now quietly resting on Mars, we wanted to give the players the opportunity to do more valuable science driving across Duna (and the other bodies) in KSP. So we added interesting new features to the surface of the planets that can be explored and have experiments performed on them.

Rover Arms

These parts are used to gather scientific data from surface features. The Rover Arms come in three levels that you unlock via Research and Development, each of which has more sensors and tools that allow you to collect more science from the same surface feature. Only the largest Rover Arm has the full suite of scientific instruments, so you might want to unlock that one as soon as possible!

Click here to see all these and a couple more images of Surface Features and the Rover Arm in high-res.


With Breaking Ground, you will see four types of robotic parts - hinges, pistons, rotors and rotational servos. Available in a range of shapes and sizes these new parts operate under realistic physics, with real forces and torques, electricity consumption and even motor mass accounted for. We are also including a controller part that will let you coordinate the behavior of many different parts on your craft.

Giving our community the ability to build even more complex creations might seem like a strange idea for anyone familiar with KSP, but it is something the whole team is passionate about. I’m really looking forward to seeing what people can make and animate with the new parts and controller combination.


Hinges will give you a limited angle of rotation between two parts. Perfect to create jointed machines for example.


The pistons give you linear motion. If set up right, they will allow you to create all sorts of craft with hydraulic-like mechanisms.


Not much to explain about the rotor, it will allow you to generate torque around its axis. Maybe you’ll build a spinning space station or ferris wheel with this, or any other rotational contraption you can think of.

Rotational servo

The Rotational servo will give you precise control of angular position. Using proportional control, servos have unlimited potential to create all sorts of inventions, where you want to have precise control of the position of certain parts.

KAL Controller

The KAL-1000 controller can sequence the actions of all the robotics parts, and a number of other fields. Its gives you access to a powerful track editor tool to let you set up how parts will behave over time. Using the controller, you can set up complex cranes, walking craft, disco lighting or whatever your heart desires.

Click here to see the Robotic Parts images in high-res.

The New Suit

This futuristic-looking suit was designed to match the spirit of Breaking Ground. It not only looks great on Kerbals, but its seams glow in the dark when you turn on the helmet lights!

For the spacesuit we tried a few options based on existing concepts from real life space programs, but some of those looked too slim or too sci-fi-ish. We also tried different helmets, but something felt weird about the shapes, and as the Kerbal helmet is iconic, we kept the classic shape when designing a new one. Apart from the design, we wanted to give the suit something that the others don't have: An emissive light at the seams, something that comes in handy to help find your Kerbals when they are far from the sun or on the dark side of a planet! At first, we thought skinning the accordion arms would be problematic, but we managed to do it, and we are pretty happy with the result. We hope you like it as much as we do!
Click here to see the Suits in high-res.

Additions to the base game

With the release of Breaking Ground, the base game is also getting some updates that will add a few new features.

For starters, the inventory mechanic that is used by deployed science will be available in the base code, for modders to use and extend as they wish.

Additionally, we're adding two extensions to our action group system. The first one adds another type of action group for controls that let you bind input controls to fields - an axis group. The second adds Action Sets, which allow you to enable or disable sets of axis or action groups.

This extends what you can do with a limited number of keys, letting you put your craft into different modes of operation. You can even override the base controls with the action set feature, further fine tuning the interface between you and your craft. We developed these extensions to give players more options to control their robotics, but it certainly will be useful for stock and modded players as well.

Finally, we’ve added EVA portraits, so that you can check data on your Kerbals even when they’re out and about.

Remember, you can share and download crafts and missions on Curse, KerbalX, the KSP Forum and the KSP Steam Workshop.

That’s it for this edition. Be sure to join us on our official forums, and don’t forget to follow us on Twitter, Instagram and Facebook. Stay tuned for more exciting and upcoming news and development updates!

Happy launchings!
43 comments Read more

May 6

Kerbal Space Program Breaks Ground with a New DLC!

Brand new downloadable content for Kerbal Space Program is on its way! Filled with new content and features, Kerbal Space Program: Breaking Ground Expansion will give new meaning to the Kerbal scientific endeavours.

Breaking Ground is all about exploration, experimentation, and technological breakthroughs. Study the soaring plume of a cryovolcano on Vall, mysterious craters on Moho, and even more new features on all of the other moons and planets of the Solar System. Deploy experiments for the long-term study of Minmus and let them collect data while you explore further sights. Test your creativity with a new suite of robotics parts. Breaking Ground will help you and the Kerbals reach new horizons, all in the name of Science!

These are the most significant features coming to Kerbal Space Program: Breaking Ground Expansion.

Robotic Parts

Brand new robotic will add a whole new level of creativity to your craft. These parts will include some new control mechanics and let you create all sorts of inventive vehicles and crazy contraptions to aid the Kerbals in exploring their Universe!

Surface Features

Scattered across the Kerbin System, you’ll find interesting Surface Features, like mineral formations, meteors, craters, and some even more curious planetary features. Study them and collect valuable scientific data with a brand-new Rover Arm!

Deployed Science

Bring equipment for experiments with you from Kerbin and deploy them on the surface of a celestial body to take measurements over time. Set up a science station and put your crew to work. From seismometers to weather stations, there are plenty experiments for you to try out!

New Space Suit

Kerbals are also getting a fresh new space suit to wear for their scientific endeavors! This sleek futuristic suit will make your Kerbals look flashy while they explore the canyons of Duna, the shores of Laythe, or any other exotic destination.

Kerbal Space Program: Breaking Ground Expansion will be released on May 30th for PC for $14.99 USD. And yes, we’re keeping our promise that all players who purchased the game through April 2013 will receive the expansion for free. We’ll provide more details on how that will work before launch.

Do you want to learn more about Breaking Ground? Then make sure to stay tuned for our next KSP Loading… where we’ll take a deep dive into the content and features of Kerbal Space Program: Breaking Ground Expansion!

Happy launchings!

P.S.: Click here to see the full High-Res screenshot album.
204 comments Read more

About This Game

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Launch your Kerbal crew into orbit and beyond (while keeping them alive) to explore moons and planets in the Kerbol solar system, constructing bases and space stations to expand the reach of your expedition.

Kerbal Space Program features three gameplay modes. In Science Mode, perform space experiments to unlock new technology and advance the knowledge of Kerbalkind. In Career Mode, oversee every aspect of the space program, including construction, strategy, funding, upgrades, and more. In Sandbox, you are free to build any spacecraft you can think of, with all parts and technology in the game.

Key Features

  • Build spaceships, rockets, and vehicles using any imaginable combination of parts, each with their own function that will affect the way your spacecraft behaves.
  • Take full control over your ship’s setup to execute complex flight maneuvers.
  • Manage your Kerbal crewmembers, including hiring, training, and sending them into space to become heroes.
  • Discover a whole star system with unique moons and planets, exploring detailed terrain at a vast scale.
  • Send your Kerbal crew outside their ships for “extra-vehicular” activities.
  • Dock spacecraft together to construct space stations, massive starships, and surface bases on new planets.
  • Use satellites to scan terrain and find biomes and other anomalies.
  • Set up communications networks to communicate between your spacecraft and Kerbal Space Center.
  • Research and develop new technologies to extract valuable information and resources from all over the solar system, and much more!

Try out the many mods created by the Kerbal Space Program community!

System Requirements

Mac OS X
SteamOS + Linux
    • OS:Windows 7 64-bit
    • Processor:Core 2 Duo
    • Memory:4 GB RAM
    • Graphics:DX10 (SM 4.0) capable, 512MB VRAM
    • Hard Drive:3 GB HD space
    • OS:Windows 10 64 bit
    • Processor:Core i5
    • Memory:8 GB RAM
    • Graphics:DX10 (SM 4.0) capable, 1GB VRAM
    • Hard Drive:4 GB HD space
    • OS:macOS Mavericks (10.9) 64-bit
    • Processor:Intel
    • Memory:4 GB RAM
    • Graphics:SM 4.0 512MB VRAM
    • Hard Drive:3 GB HD space
    • OS: macOS Sierra (10.12)
    • Processor:Intel Core i5
    • Memory:8 GB RAM
    • Graphics:SM 4.0 1GB VRAM
    • Hard Drive:4 GB HD space
    • OS: Ubuntu 14.04 LTS 64-bit
    • Processor: Core 2 Duo
    • Memory: 4 GB RAM
    • Graphics: SM 4.0 512MB VRAM
    • Hard Disk Space: 3 GB HD space
    • OS: Ubuntu 16.04 LTS
    • Processor: Core i5
    • Memory: 8 GB RAM
    • Graphics: SM 4.0 1GB VRAM
    • Hard Drive: 4 GB HD space

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