There was a bug right at the beginning if you press W:
I believe the bug is because you are standing at the fat guy’s window while in that menu, but your key inputs are not restricted, so one menu actives in top of the other.
Besides that, the game is awesome. I think if you keep polishing it, maybe streamlining the ship building process, it could turn out great. It is from time to time a little bit tedius. Maybe walking faster when carrying things. I Think the game would benefit greatly if you add mouse support during menus and some tooltips to icons and stuff when you hover over them.