True Adventures, Ltd., is a role-playing game company started by Jeff Martin.[1] It operates two entertainment venues at Gen Con Indy: True Dungeon and True Dungeon Fantasy Tavern. True Adventures is notable because their signature event, True Dungeon, is "the single most popular event" at Gen Con,[1] drawing people to the convention just for it.[2] The event is also notable for its scale; about 3,000 players play in groups of up to eight people (more recently ten) over four days each year.[1] The company also hosted the event True Heroes in 2004 and 2005. True Adventures ran these events at Gen Con SoCal when the convention was still in existence. The company grew out of Martin's work in creating elaborate props and puzzles for his Dungeons & Dragons game.