True Dungeon is a d20 variant that allows players to experience their D&D adventure within a life-size, walk through dungeon environment.

Not a LARP, True Dungeon instead focuses on problem solving, teamwork and tactics while providing exciting sets and interactive props. Players may find themselves creeping down a dark passageway and entering a long-forgotten crypt. After dispatching a lurking guardian, the players may have to solve a cryptic puzzle or find a secret door in order to gain a wondrous treasure chest - a chest that might hold a shocking surprise if opened without care. It takes two hours to explore the dungeon, and teams of seven players need only bring their imagination and quick wit. No prior D&D or gaming experience is needed. In fact, a party with an array of different experiences usually does well. This is a perfect vehicle to let some non-D&D gamers experience the fun and thrills of dungeoneering.