From publisher blurb:
The gates of Dwimmermount have opened. After years of rumors, it is time to discover the secrets of this vast mountain fortress for yourself…
Dwimmermount™ is a classic megadungeon and old-school campaign setting presented use with Adventurer Conqueror King System™ and other d20-based fantasy role-playing games.
The 400-page Dwimmermount includes:
13 mapped, keyed, and stocked dungeon levels containing a total of 715 fully-described and detailed encounter areas for players and their characters to discover – with random tables to generate even more!
86 monsters and 70 magic items to confound, challenge, and reward your players.
6 pre-generated adventuring parties to serve as rivals for your player characters.
A gazetteer of the lands surrounding Dwimmermount, with realms, domains, and settlements described using ACKS mechanics to support a campaign endgame.
An overview of Muntburg, a fortified town nestled in the shadows of Dwimmermount, intended to serve as a “home base” for the player characters between expeditions into the dungeon's depths.
A history of the dungeon from its earliest days to the present, with innovative mechanics that reward the characters for learning the secrets of the past.
Descriptions of numerous factions operating within and without the dungeon, whose activities add a further layer of complexity to Dwimmermount.
Discussions of ways to approach Dwimmermount, both as a player and as a referee, including insight into the dungeon's origins and design.
Over 40 different works by top artists including Jeff Dee, Mark Allen, Eric Quigely, Conor Nolan, John Larrey, Steve Zieser, Russ Nicholson, Kelvin Green, and the grand master of old-school fantasy, Erol Otus.
In the Golden Age of fantasy roleplaying, the dungeon was the linchpin of adventure design and the sandbox was the assumed role of a campaign setting. With Dwimmermount, the Golden Age has returned.