Seriously? I have to tell you why I preordered? Okkaaaaayyyy.... Now imagine a soft music in the background with me saying: "Space... the final frontier... these are the adventures of Camzi..." yeah... you should know the rest. So in No Man's Sky you can discover a WHOLE universe with your space ship. Land on planets, discover lifeforms there and fly off again whenever you like. It is huge!!! If you love discovering, space, sci-fi in general this is a title you MUST get.
Me, myself and Space. I wish I could beam myself to the release date just now!