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Dwimmermount (ACKS version)
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Dwimmermount (ACKS version)

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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 hardcover 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.


 Customers Who Bought this Title also Purchased
Reviews (2)
Discussions (7)
Customer avatar
Patrick H March 23, 2020 8:00 pm UTC
I have just re-downloaded this again, and for the record, the bookmarks are fixed. (There is a VERY minor issue where the Chapter 2 and Chapter 3 bookmarks point to the beginning of Section 1, but sub-marks still all work correctly.)
Customer avatar
Patrick S July 11, 2019 9:15 am UTC
I have downloaded the new version of the file (with the reported updated bookmarks) and I still only get the bookmarks for Chapter 1.
Customer avatar
Patrick H July 06, 2019 12:28 pm UTC
Just (finally) picked this up. At the moment, the PDF bookmarks only cover part of Chapter 1. As this is a 400-odd page PDF, the lack of functional bookmarks is something of an impediment to reading.
Customer avatar
Alexander M July 06, 2019 3:15 pm UTC
Patrick, can you please reach out to me at with a link to the file that DTRPG sent you as well as the Adobe/PDF reader you are using? I've just reviewed the file on my Dropbox and all of the bookmarks are present and functional. Thanks for alerting me to the issue you've having.
Customer avatar
Trenton A May 04, 2018 6:46 am UTC
This was originally on sale for the May D&D sale but now I see that it isn't. Is this meant to be on sale or not? I am hoping to pick up some more OSR material during this sale and I was eyeing a couple of ACKS products but if they aren't on sale I'll wait for now and get the discounted items I was considering first.
Customer avatar
Alexander M May 04, 2018 4:11 pm UTC
That was my mistake! I was trying to edit and update all the books and I accidentally deleted the discounts. I'll get this fixed ASAP. You should be able to buy the discounted book in about 10 minutes.
Customer avatar
Trenton A May 04, 2018 10:48 pm UTC
Awesome! Though this certainly makes the decision making process on what to pick up more difficult.
Customer avatar
October 29, 2016 10:37 pm UTC
Would like a hardcopy + pdf of the ACKS version of Dwimmermount! There is one for the other version, why not for ACKS?
Customer avatar
Thomas V February 10, 2017 9:01 am UTC
Same here.
Customer avatar
Alexander M February 23, 2017 11:30 pm UTC
It's on our to do list, but we're a small company so sometimes it takes a while to get to tasks!
Customer avatar
Douglas G April 18, 2017 2:54 am UTC
Since Feb, any word on a print of hardcovers?
Customer avatar
Erik F August 02, 2017 7:09 pm UTC
would love to buy a hardback of this. Any mailing list I can join to know when it's available?
Customer avatar
Frits K December 06, 2015 7:35 pm UTC
Should any more development / expansions be done for Dwimmermount i assume that these will be for ACKS first?
I'd like to prevent ending up with books for different systems:-)
Customer avatar
Alexander M February 23, 2017 11:31 pm UTC
We developed Dwimmermount in a partnership with the original author. It's not likely we will create new supplements for that setting, though he might!
Customer avatar
George F February 18, 2015 6:28 pm UTC
I noticed a map book and an illustration book are sold separately. Are those required, or are the maps and illustrations included in this product?
Customer avatar
Anders K August 29, 2015 9:45 pm UTC
The maps and illustrations are included in the main book as well
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File Last Updated:
July 11, 2019
This title was added to our catalog on October 08, 2014.
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