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 is in charge of a space program on the planet Kerban, populated by a species of large headed green people known as Kerbals. The goals are to construction and launching of spacecrafts, exploration and development of the solar system, or just blow shit up and ebing a general failure (which is what the majority of the playerbase does). Has a large modding community with all kinds of historical and sci-fi contents.