From publisher blurb: Sometimes, it's not enough to just roll three 6-sided dice and see what matches in a game of -U-. Sometimes, the Story Referee needs to apply a scale of success to the task at hand. Enter -U- Options: Modifiers, a 1-page solution for the need to scale Character Checks in any game of -U-. Note: Fully compatible with -U- the Game of Stories or any game with the Powered by -U- logo.