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Undermountain: The Lost Chambers
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Undermountain: the Lost Chambers is a collection of 11 adventure locations designed to be dropped in to Dungeon of the Mad Mage or any other Undermountain/dungeon crawl experience. 

Crafted by 7 of the guild's best authors, the compilation features strange environments, bizzarre creatures, epic villains, ancient secrets, and the dreaded Undermountain Water Purification and Sanitation system. 

Challenges range from level 3 all the way to level 13+, and feature exploration, negotiation and combat, ensuring options for all groups and playstyles. 

The FANTASY GROUNDS version of this module can be found HERE

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Reviews (2)
Discussions (7)
Customer avatar
Patrick H December 08, 2019 10:19 pm UTC
I have a couple questions about the maps included.
1. Does the product include player-view versions of the map without the numbers and such?
2. Are the maps' grid dimensions mentioned for aligning in a VTT?
Customer avatar
Micah W December 09, 2019 7:26 am UTC
Hi Patrick
1) There are player maps and they are clean, with no grids, numbers or secret doors marked
2) No grids so no grid dimensions. It was discussed, but ultimately decided the maps have more utility and reusability if a DM could resize as they desired, fitting to any grid configuration (or even hex configuration).
Customer avatar
Patrick H December 09, 2019 11:16 pm UTC
Sounds excellent! Thank you for the reply.
Customer avatar
Matthew P April 04, 2019 6:10 am UTC
Very disappointed with the first one in the book, Abandoned Atelier. The content is very cool, and it would be great, except there are both numerous typos (minor), errors in description (moderate), and an epic fail on how surprise rounds work, when one of the encounters relies upon on it for the Big Twist.
Customer avatar
Corey S February 06, 2019 4:58 pm UTC
Any update on a potential FG module? I would buy in a hot second if it were a FG module.

Customer avatar
Micah W February 06, 2019 10:50 pm UTC
Hi Corey. The FG version is currently in development and should be available soon.
Customer avatar
Bobby J December 27, 2018 2:08 pm UTC
I picked this up last night. I like the format and most of what I've read so far.
Is there an email or place I can submit corrections to? There are some typo's and missing descriptions/misplaced descriptions in a couple of place that I found odd.
The Sanctuary of the Goddess has a couple of places that immediately come to mind.
Customer avatar
Micah W December 27, 2018 11:25 pm UTC
Certainly! We love to get feedback! You can submit it to
Customer avatar
Badger B December 14, 2018 8:16 am UTC
I looked and still think its unclear at best.

However the tone of your response tells me, it was not your intention at all.

I unreservedly apologise and wish you well.
Customer avatar
MATS H December 10, 2018 8:16 am UTC
Any plans for a Fantasy Grounds version? Don't have the time to convert this myself, but would really want it for my game.
Customer avatar
Micah W December 11, 2018 2:32 am UTC
It’s a distinct possibility that this will happen in the near future.
Customer avatar
Badger B December 06, 2018 1:41 pm UTC
dude your email title was little more than clickbait

poor call

In case you forgot or for others who did not see it.

"NEW!!! This week's FREE weekly Undermountain - The Lost Chambers map - Available now for YOU!"

I followed the link to find its $9.99
Customer avatar
Alex C December 06, 2018 2:07 pm UTC
I think you followed an incorrect link. PB Publishing, one of the creators of this project, is separately releasing maps for free on DriveThruRPG;
Customer avatar
Philip B December 07, 2018 12:09 am UTC
Alex is correct. Badger, there were two links on that email... the top section which has a few links to the free map, as advertised. Then with a clear separator on the email there is another piece of information showing the origin of the map from the larger product (this undermountain project), which of course provides a link to here should someone be interested in this amazing product.

Thanks for your concern over this, but I do implore you to have another look at the email.


P.B. Publishing.
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File Last Updated:
January 20, 2019
This title was added to our catalog on November 12, 2018.