A downloadable game aid

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Dungeon Seeds

In His Majesty the Worm, characters adventure through a mythic underworld underneath the city at the center of the Wide World.

In the same way that a hobbit hole is different from a nasty, dirty, wet hole, the mythic underworld is different from a simple dungeon. It’s not merely a cave system with kobolds and goblins hiding in every shadowy corner. It’s another world, charged with unconventional physics, inhuman entities, and alien architectures.

As a gamemaster, creating a mythic underworld can seem daunting, but it’s really just a series of small, discrete tasks.

  • Break a megadungeon down to its atomic constituent parts.
  • Populate it with interesting things.
  • Connect these levels together.

It’s less making one huge megadungeon and more creating several, smaller dungeons and creating an appropriate flow between them.

This book contains a procedure for laying out interconnected dungeons, as well as inspirational dungeon seeds to use as prompts. Because His Majesty the Worm is not a premade setting, the descriptions of the seeds are just suggestions—meant to be evocative. For each seed, we’ve included a map from Dyson Logos. You can use this map or make one of your own using the procedures in this book.

By following through the atomized steps, you’ll have a working mythic underworld with a few hours of work.

This book contains:

  • A procedure for laying out a Jaquaysed megadungeon layout
  • Twenty-one inspirational dungeon ideas with maps
  • Dungeon checklist that encourages meaningful exploration
  • Procedures for making maps, keying rooms, and making random encounter tables
  • Thorough walkthrough of making a dungeon level

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What game system is this for?

This supplement is from the forthcoming His Majesty the Worm. It is applicable to any dungeon-crawly game, however.

Wait, what's His Majesty the Worm?

His Majesty the Worm is a fantasy dungeon crawling game that is currently in development. It attempts to make the boring parts of dungeon crawls (mapping, resource management, food and water, light, interparty conflict) actually fun and central to game play. 

Any revenue gathered from this supplement will be funneled to paying cool artists good money for His Majesty the Worm. If this sort of thing sounds cool, please throw in a few dollars to help fund the game! 

CategoryPhysical game
Rated 4.9 out of 5 stars
(16 total ratings)
AuthorRise Up Comus
GenreRole Playing
TagsTarot, Tabletop role-playing game


Buy Now$10.00 USD or more

In order to download this game aid you must purchase it at or above the minimum price of $10 USD. You will get access to the following files:

Dungeon Seeds.pdf 2 MB


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this is a tremendously inspiring work!

I am currently using it to make when I am calling “babies first Megadungeon”.

This literally is what it says on the tin. Seeds that you water with your own imagination, and grow into your own creation.

By necessity, my inverted castle is going to be completely different than anyone else’s inverted castle.

Thanks for this amazing work!

Can’t tell you how much it means to get comments like this. Thank you for the kind words! Hope you’ll check out the full book when it comes out.

I am already subscribed to your mailing list before I actually found this. So..is there away for me to get it for free?

Send me a lil email at hismajestytheworm at gmail dot com

Hi. I subscribed to your mailing list to get "Dungeon Seeds" but haven't received the PDF.

Sorry about that. Thanks for letting me know. If you let me know your email I’ll send it along! You can PM me on Twitter @riseupcomus or email hismajestytheworm at gmail dot com, if that’s easier.

My email is mjaj5929 at gmail dot com. Thank you for the reply! 😊 You could also PM me on Twitter @micahrevenant

Sent! Let me know if you don’t see it tonight and we’ll try something else.

I got it with no problems. Thank you! 😊