At the moment, you can only build the rocket. How to build: Drag the parts in the position you want, use the separator on top of the engines like in the original game (SFS). Credits: Random guy on youtube and the Curiosity Team (SFS team). Update log: v1.0: The game lauched, only has a capsule, "block" fuel tank, hawk engine, really bad separator, and an aerodynamic cone. Can't lauch the rocket, doesn't have staging, and the textures are mid.