If you are talking about not knowing how to save the game, you can press Escape and click 'Save Game'. I believe it is the topmost button. If you are saying that you click 'Save Game' but it never actually saves, that might be a good question for Dasius or Kurzidan. You should post this in the Bugs page (https://itch.io/t/57232/bug-reports), since this is more of a bug than a suggestion.