Also known as: kerbalspaceprogram, KerbalSpaceProgram, KSP, カーバルスペースプログラム
A popular space flight and construction simulator famed for its physics engine and scientific accuracy.
You the player are in charge of a space program on the planet Kerbin, populated by a species of large-headed green people known as Kerbals. The goals are the construction and launching of Spacecraft, exploration, and development of the solar system, or just blowing shit up and being a general failure (which is what the majority of the playerbase does).