I'm super excited, I finally bought the game after messing with the Demo for a while. I basically have to play KSP because this is where I work: No, I don't work with a bunch of gamers. I literally work with rocket scientists! Anyway, anyone know whether I'm going to have problems installing KSP on two computers? Do I need an additional license for that? Also, should I download the "Installer" or the ".25" packet? What's the difference? Do I completely erase the demo first, or does it go on top somehow? Cheers!