Thank you mate, you can't even imagine how grateful we are that everyone actually took time to play it and leave some feedback! That was one thing especially we thought about a lot, the immersion and that is why we don't really have any UI at all, except the popups to help the player. We wanted people to be able to feel like they are in the game.
That is actually a really good suggestion, we did have some trouble with optimisation and the game being quite demanding on your computer, so that is something we need to take into consideration in the future!