The deadliest dungeon in the D&D world returns!

For generations, the Tomb of Horrors has held an inescapable allure. It draws adventurers to it like a beacon then devours them utterly like some monstrous predator. Within its sepulchral, trap-ridden halls and chambers lay the secrets and treasures of the demilich Acererak and, some say, the demilich himself.

Tomb of Horrors features a modular design that allows Dungeon Masters to build campaigns around the events herein, or pick and choose from the various chapters for use as standalone adventures. It presents a variety of challenges, from intricate combat encounters to traps and tricks evocative of the classic Tomb of Horrors adventure. This D&D adventure is designed for characters of 10th-22nd level and includes a full-color, double-sided battle map designed for use with D&D Miniatures.

Tomb of Horrors is one of the most classic adventures in the D&D oeuvre. It was originally created by Gary Gygax to torment overly arrogant PCs, then it appeared as one of TSR's first adventures, first with a monochrome cover (1978), then with a color cover (1981), then in the S1-4: Realms of Horror (1987) anthology. Years later, Wizards of the Coast updated the original adventure to 3.5e as a Halloween PDF (2005).

In the meantime, Wizards had also produced a sequel to the adventure, Return to the Tomb of Horrors (1998) by Bruce Cordell. This second adventure was set twenty years after the first and revisited the Tomb of Horrors in the wake of adventurers looting it. The Bleak Academy and a necromantic metropolis called Skull City had grown up around the fallen Tomb, and the arch-villain of the original, the demilich Acererak, was revealed to be up to his old tricks.

Though D&D 4e (2008) dramatically revamped D&D's mechanics and its cosmology, it nonetheless was filled with classic D&D lore — moreso than D&D 3e (2000) in many ways. Thus, Open Grave: Secrets of the Undead (2009) quickly revisited the story of Acererak — canonizing the fall of the Tomb and the rise of Skull City and Bleak Academy as part of the World Axis cosmology. Even more details appeared simultaneously in Dragon #371 (January 2009). This allowed Gray and Marmell to treat Tomb of Horrors as another sequel — the third part of a trilogy. More time has gone by, and once more Acererak — thought long dead — is rising.

The Tomb of Horrors super-adventure was actually one of two books released nearly simultaneously that touched on the ancient dungeon. Confusingly, the other was also called Tomb of Horrors, but it was only available as part of the D&D DM Rewards Program for RPGA DMs. This shorter adventure revamped the 3.5e version of the original dungeon one more time. Because the 3.5e dungeon had integrated the Bleak Academy background from Return to the Tomb of Horrors, the RPGA adventure could be used as a prequel to the hardcover Tomb of Horrors super-adventure.