Rappan Athuk: The Dungeon of Graves (D&D 5.5e)

About the adventure

RAPPAN ATHUK: THE DUNGEON OF GRAVES In Rappan Athuk, you stand at the edge of a wilderness that conceals one of the largest dungeon complexes in the history of Dungeons & Dragons. There is no single path forward, only choices. Multiple entrances lead into a vast, interconnected underworld where routes branch, loop, and descend far beyond what you can see. Nearby settlements and factions offer limited aid, but once you commit, the direction you take and how deep you go is entirely your decision. Known as the “Dungeon of Graves,” this is a place that does not adjust to you. Areas far beyond your strength can be reached early, and survival depends on judgment, preparation, and knowing when to retreat. Exploration is deliberate, with mapping corridors, tracking resources, and learning the dangers of each level. Combat is only part of the challenge; information, caution, and timing determine whether you press forward or join the countless dead below. As the campaign continues, the dungeon changes in a practical sense as you begin to understand it. Paths that were once unknown become established routes, hazards become manageable, and deeper levels come within reach through planning rather than luck. Progress is earned through experience and decisions, not guarantees. By the time you reach the lower depths, you are no longer reacting to the dungeon. You are navigating it with intent as you push into areas that once seemed unreachable, confronting threats that demand everything you have learned. Does it ever end? No one truly knows. Will you be the first to find out? Doubtful. But that never stopped the brave, the desperate, or the foolish. Which one are you? ---------------------------------- THE REAL-WORLD HISTORY of RAPPAN ATHUK Rappan Athuk began in the early 2000s as a series of adventure modules published by Necromancer Games for 3rd Edition Dungeons & Dragons. Designed by Bill Webb and Clark Peterson, it was created with a deliberate “First Edition feel,” emphasizing lethal encounters, nonlinear exploration, and minimal narrative guidance at a time when most official content favored balanced, story-driven adventures. Originally released in multiple installments, the dungeon quickly gained a reputation for its scale and difficulty, earning the title “The Dungeon of Graves.” In the mid-2000s, the material was compiled and expanded into a single massive volume, often referred to as “Reloaded,” which unified the dungeon into a cohesive mega-structure. After Necromancer Games ceased operations, the creators founded Frog God Games and later revived the campaign through a successful Kickstarter in the early 2010s. This new edition significantly expanded the dungeon and adapted it for the Pathfinder Roleplaying Game, with later conversions for modern editions of D&D. Over time, Rappan Athuk became one of the most recognized modern mega-dungeons, known for preserving and reintroducing a classic style of open-ended, high-risk dungeon exploration.