Kerbal Space Program 0.9 - Windows free game

Author: Squad Games

Kerbal Space Program is a multi-genre game where the player can create his own space program.

In KSP, you must build a space-worthy craft, capable of flying it's 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 it's 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!