Kerbal Space Program

Kerbal Space Program puts you in charge of the Kerbals’ space program. You assemble spacecraft from parts with different functions, then launch crews into orbit and beyond. Realistic aerodynamic and orbital physics determine how your craft flies, and you must keep your Kerbals alive as they explore the moons and planets of the Kerbol system and expand the expedition with bases and space stations.

Gameplay modes

The game has three modes. In Science Mode, you conduct space experiments to unlock technology and advance Kerbalkind’s knowledge. Career Mode has you oversee construction, strategy, funding, upgrades and other aspects of the program. In Sandbox, you can build spacecraft from any of the game’s parts and technology.

Build and fly

Combine parts to build ships, rockets and vehicles, then control their setup to carry out complex flight maneuvers. You also manage the Kerbal crew, hiring and training them before sending them into space. Crew members can leave their ships for extravehicular activities.

Explore the system

Explore a star system of moons and planets with detailed terrain on a vast scale. Use satellites to scan the terrain and find biomes and other anomalies. Research and develop technologies to gather information and resources throughout the system, and set up communications networks between your spacecraft and Kerbal Space Center.

Expand your expedition

Dock spacecraft to assemble space stations, massive starships and surface bases on new planets.