Rule 0 or rule zero in tabletop role-playing gaming is the unwritten but commonly understood rule that the game master can override published game rules for any reason. External links Mearls, Mike (July 19, 2011). "Legends & Lore: The Rules". This article is a stub. You can help D&D4 Wiki by expanding it. Retrieved from "https://dnd4.fandom.com/wiki/Rule_0?oldid=32803" Categories: Article stubs DMing Community content is available under CC-BY-SA unless otherwise noted.