I have some feedback for You Sebastian.
First, most important, thing - the game is just AMAZING!!!
On things that need fixing:
-my 21:9 monitor had some issues in main menu - full screen/windowed toggle was entirely hidden behind "back" button
-during flight, the pause menu was hard to read, letters were gray and behind them were thin white stripes.
-add some minecraft-alike music to it!
-a compass is in order
-maybe add a noctovision in the night? In some places during the night it is completely dark
Good luck and have a good day sir!