Anyone else played this game? (
http://kerbalspaceprogram.com)
Basically you can build a spacecraft using various parts like command modules, fuselage, various thrusters (solid fuel, liquid fuel, etc), stablising modules, etc, than blast it off into space and see what you can do. I've so far managed to get my ships into orbit and crash land on the first moon (it's set on Kerbal, not Earth), but haven't managed to return from orbit, land properly on the first moon or even reach the second moon. You can do EVAs and stuff, and there appears to be some sort of (alien?) construction on the first moon, but I didn't get a close look before I pancaked into the surface.
There's a free demo but the full version costs $18. It's in a sort of alpha mode at the moment and the devs have promised things like being able to get space stations into orbit, docking, an astronaut complex for training, a full solar system to visit and so on. There are also a bunch of mods, but I haven't look at those yet. Seems pretty cool, overall.
