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 Bug Reports page (https://itch.io/t/57232/bug-reports), since this is more of a bug than a suggestion.
I suggest that you message Daisus or Kurzidan on Discord through a direct message, or post it in the MLBSS Discord channel.
MLBSS Discord: https://discord.gg/sya97hJ
You can message them directly by going into the Home tab of Discord, then going to the top of the column just left of the servers, then clicking the search box at the top and typing either one's name. I believe that Kurzidan may have more knowledge on this, so you should probably ask them first.