I am about to add settings to my game and I need to know what settings I should include. Its going to be more of a low poly game but maybe invert mouse or something?
Maybe don't think about best experience, think about worst possible experience and how to fix it. Things that could break your game: weird aspect ratio, weird resolution, unexpected or unaccessible control scheme, too quiet/loud sound or sound at all. Make it possible for player with any keyboard/mouse, any speakers/headphones, and any monitor to play your game - then polish it further. Heavy testing and ensuring that your game handles ratio/resolution automatically would work as well. Controls must be very simple or customizable, and volume/mute settings seems mandatory. Good luck!