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Mutant Spawn of the Toadmother for 5E & DCC RPG

Created by Nerdronomicon

Witness the Children of Bobugbubilz, driven into the depths by an angry god, claw for the surface... to feed. For 5E and DCC RPG. Compatible with Castle Whiterock from Goodman Games!

Latest Updates from Our Project:

What is a Bobugbubilz?!
5 months ago – Tue, Apr 14, 2026 at 05:13:26 AM


Wart-ridden demon patron of all slimy wriggling putrid things


Bobugbubilz [bo-BUG-bub-ilz], the Toadfiend God, is the slimy god of evil amphibians, turbid water, and slime. A chaotic power of mires and malodorous life, Bobugbubilz is content simply to spread his putrid offspring across the planes and let them multiply and sow discord and misery where they will. Cults spring up now and again in his wake, carrying out deviant rites and spawning new creatures in his name.

Bobugbubilz has been described as a whip-wielding, bloated, toad-like monstrosity of alarming size, with a rancid odor that precedes him. But, I prefer my deities a little more unknowable. I see Bobugbubilz more as an unblinking, eternal amphibian eye in a sea of rancid frogspawn, at the center of a perpetually exploding wave of tadpoles, pollywogs, toads, and frogs.

If the campaign reaches the absurd amount of $18,500, all backers will get a print or PDF poster depicting the Eye of Bobugbubilz! I made a smaller version as bookmarks (which everyone will get a copy of).

5E Backers: 5E (2014) or 5.5E (2024)
5 months ago – Sat, Apr 11, 2026 at 12:57:22 PM



That is the question.


For those folks who backed the 5E version of Mutant Spawn of the Toadmother, here's the big question: Do you want 5E (2014) or 5.5E (2024)?

The main differences from a design perspective are in the monster stat blocks and the character backgrounds. There will be some mechanical differences, but they won't be huge.

Because of the unique starting point of the adventure, players will be encouraged to choose a background from those provided in Mutant Spawn of the Toadmother. You may have been a noble, a sage, or a soldier, but now you are a refugee, a derelict, or a goon. Hardship has knocked you on your back and maybe given you some interesting new skills.

Backgrounds differ mechanically between 5E and 5.5E, so we need to know which path to take.

In 5E, backgrounds affect your skill proficiencies, additional languages, equipment, and suggested characteristics, and grant a unique feature.

In 5.5E, your ability scores, origin feat, skill proficiencies, tool proficiencies, and equipment are affected by your background. 

It's your call. I have my opinions, but this is your adventure, and you should decide. Keep in mind that 5E content is supposed to be compatible with 5.5E, but 5.5E is not very compatible with 5E. As a result, I'm putting my thumb on the scales—a two-thirds majority will be required for 5.5E to win.

Let me know in the comments how you feel about this. I promise to ignore everyone equally.

Three Stretch Goals Down, Three Stretch Goals Revealed
5 months ago – Fri, Apr 10, 2026 at 06:49:50 AM


What goodies are in store?


I am incredibly grateful to all of you who have elected to support Mutant Spawn of the Toadmother. We have been grinding through the stretch goals! So far, we have two new monsters (be sure to get your vote in below), a sticker sheet (for print and PDF pledges), and VTT tokens of all of the NPC and monster art, suitable for your favorite virtual tabletop.

On deck, we have another sticker sheet, two more monsters, and my favorite: a "Bobugbubilz is my Copilot" bumper sticker. As we cross these new thresholds, more will be revealed! Let your friends and enemies know!

How Do You Want to Die? Choose Your Monsters!
5 months ago – Thu, Apr 09, 2026 at 05:28:44 AM


Which two new monsters do we add to the adventure?


We have quite a selection of horrible encounters filling the pages of Mutant Spawn of the Toadmother. Let's cram in a couple more! We have everything from Blind Albino Crabs to Ravenous Troglobitic Leeches.

The two creatures with the most votes go in the book. Voting ends a week from today, on April 16, at 9:00 AM CDT.

Thank you, thank you, thank you!
5 months ago – Wed, Apr 08, 2026 at 06:21:13 AM



The Toadmother is pleased!


What a first day! It hasn't even been 24 hours, and the Mutant Spawn of the Toadmother has already funded. Not only that, we have met the first stretch goal—"Reach $6,500 to add 2 more Monster Encounters to the adventure!"

Thank you to everyone who has backed the campaign! I am awed by your support. Please let your friends and enemies know about the campaign! We have some awesome stretch goals that you deserve—including a sticker sheet (for physical and PDF pledges) once we reach $8,000!

Don't forget to back our cross-collab project, The Madness of Metronax from Wizards with Laser Rifles, to get a unique sticker sheet! Also, if you back Castle Whiterock and the other Castle Whiterock Collab Projects, you get the fabled Lost Level!