Want to become an astronaut? Or are you just an evil Overloard bent on World Destruction? In any case, you might want to freshen up your knowledge of rocket science, and what better way to to that (and getting a basic understanding of orbital mechanics) than to play KSP?

Serioously, had NASA used this to train all their folks from the getgo, they'd have permanent bases on Mars and Titan for some years now.

And if rocket science isn't your thing... maybe just watch little green man enthusiastically die in glorious balls of fire while testing your spotty rocket designs...

Anyhow, this game is a hoot and if you are interested in space flight, i really recommend to give it a shot!