Is there anything preventing us from providing peripherals adding to the core game? Say I make the core rules of the game on one sheet, but also provide some extra content to expand on it.
Hi! As long as the core game/gameplay takes place or is explained on the one sheet, then add any extra items to the game you want. Feel free to interpret how you want. It's not the end of the world if you break a rule or two if you have an awesome idea!