I’m not sure if there’s a specific section of the forums to put questions about game mechanics and stuff like that, so sorry if this is in the wrong category. 
When making games and using research options to enhance the game (things like Level Editor, Savegame, and Linear Story) a little percentage pops up next to the bar that says “Engine” or “Story/Quests”. I’m confused as to what this percentage is supposed to be telling me. The percentage also goes down or up if I move the bar down or up. What really confuses me is that when I add more of the research options to the game, the percentage goes down, and when I deselect enough options, the percentage goes up or disappears completely. Does anyone know what the percentage is for or how it affects the overall rating of your game?