Solid mechanic and overall vibe is nice. Love the parallax stars background (but how can there be parallax if the universe is flat?) Controls felt a bit floaty, and going back to enable upgrades is pretty annoying.
Thanks for playing and your feedback! ;) Going back with the upgrades felt like an easy way to extend the gameplay a bit, but maybe adding some sort of fast travel would be nice atleast :)
And well... Flat Universe is still just a theory I suppose... many things we don't know yet... :D
