The World's Largest Dungeon is a 1,600+ page, four-book behemoth megadungeon. Experience the Guinness World Record-winning dungeon crawl like never before - fully updated to 5E of the Worlds Most Popular Roleplaying Game!

This new expansion to Sentinels of the Multiverse explores the heroes, villains, and environments of the Multiverse — those who travel through it, those who have been touched by its vast impossibilities, and those who would seek to destroy it!