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Mutant Spawn of the Toadmother for 5E & DCC RPG

Mutant Spawn of the Toadmother for 5E & DCC RPG

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 and part of Mega Dungeon Month!
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Started: Tue Apr 21 12:19PM

Duration

2m 39s

Backers

1

Raised

$300

🗓 Estimated to ship by October 5, 2026

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This project is part of Castle Whiterock Collab, running from April 7th – May 1st, 2026. Learn more

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Deep beneath the Warrens of Cillamar, in caverns dark and treacherous, the children of Bobugbubilz thrive, basking in the radiation of pure chaos. Driven below by the wrath of an angry god, they gather their strength, preparing to rise to the surface... to feed.


Descend into the darkness in this punishingly fun level 1 adventure for 5E and DCC RPG 0-level funnel. Whether run as a one-shot, dropped into your ongoing campaign, or used to kick off your Castle Whiterock mega-dungeon delve, you and your players will never forget The Mutant Spawn of the Toadmother.

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Mutant Spawn of the Toadmother is a 1st-level adventure for 5E and a 0-level funnel for DCC in which your players are plunged into a classic horror fantasy. As refugees, criminals, and other outcasts on the outskirts of society, they are forced by circumstance into a situation far beyond their control. Will they survive? Will they triumph?



Mutant Spawn of the Toadmother is one of the many amazing third-party releases designed to add even more fun to Castle Whiterock, a classic castle-themed mega-dungeon from Goodman Games.

The adventure includes:
  • 12 new beastly monsters (Maybe more? Stretch goals!)
  • New backgrounds and occupations
  • Anxiety-inducing subterranean adventure mechanics like spelunking and cave diving
  • Puzzles and obstacles to challenge and inspire the imagination
  • Completely insane, terror-inducing, nightmarish narratives

Designed for ALL GMs

This adventure is designed for every type of GM, from zero-preppers to flavor-text junkies. Organized so you have exactly what you need at the table.
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Receive the Lost Level map from Goodman Games once all the Castle Whiterock projects fund – plus a Lost Level encounter with every indie Castle Whiterock project you back!

In Lost Level area 1-4, available with the Mutant Spawn of the Toadmother, your players will traverse a maze of tunnels—disputed territory for two brutal subterranean gangs. This encounter, for 5E and DCC RPG, can be dropped into any subterranean adventure, or as part of the fabled Lost Level of Castle Whiterock!

In addition, if you back both Mutant Spawn of the Toadmother and The Madness of Metronax from Wizard with Laser Rifles, not only will you receive two amazing adventures, but you'll also get a sticker sheet filled with awesome art from both campaigns



Metronax the wizard was an up-and-coming adventurer, well respected in Cillamar and a frequenter of the Inn of the Slumbering Drake. But a combination of hubris and magical mayhem turned him into...something else. Now, with his physical and mental forms twisted beyond recognition, he plans his revenge on all those he believes betrayed him, even if that means he must bring Cillamar itself crumbling down!
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Whether your players are heroes, reavers, or both, there's an option for you!

Receive 8½ x 11" printed and PDF copies of Mutant Spawn of the Toadmother for both 5E and DCC RPG, as well as all of the physical and digital stretch goals. Plus, save 20%!

Receive an 8½ x 11" printed and a PDF copy of Mutant Spawn of the Toadmother for 5E, as well as all of the physical and digital stretch goals.

Receive an 8½ x 11" printed and a PDF copy of Mutant Spawn of the Toadmother for DCC RPG, as well as all of the physical and digital stretch goals.

Receive PDF copies of Mutant Spawn of the Toadmother for both 5E and DCC RPG, as well as all of the digital stretch goals. Plus, save 20%!

Receive a PDF copy of Mutant Spawn of the Toadmother for 5E, as well as all of the digital stretch goals.

Receive a PDF copy of Mutant Spawn of the Toadmother for DCC RPG, as well as all of the digital stretch goals.

Show your support, follow the campaign, and maybe pick up an add-on or two!

Receive five 8½ x 11" printed copies of Mutant Spawn of the Toadmother for 5E and five 8½ x 11" print copies for DCC RPG at less than 67% of MSRP.

Receive five 8½ x 11" printed copies of Mutant Spawn of the Toadmother for 5E at 68% of MSRP.


Receive five 8½ x 11" printed copies of Mutant Spawn of the Toadmother for DCC RPG at 68% of MSRP.
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More monster encounters! Sticker sheets! Patches! Bumper stickers! More to come!

UNLOCKED! At $6,500, we'll add 2 new monster encounters, increasing the total number of new and unique monsters to 12! For physical or PDF pledges! Watch for a poll to make your choice!

UNLOCKED! If we reach $8,000, you'll receive a sheet of unique stickers taken from various Nerdronomicon publications! For physical or PDF pledges!


UNLOCKED! Get VTT token-sized artwork files of all of the character and monster illustrations in Mutant Spawn of the Toadmother at $9,500!


UNLOCKED! If we reach $11,000, you'll receive another sheet of unique stickers taken from various Nerdronomicon publications! For physical or PDF pledges!


At $12,500, we'll add 2 new monster encounters, increasing the total number of new and unique monsters to 14! For physical or PDF pledges! Watch for a poll to make your choice!


$14,000 brings us the "Bobugbubilz is My Copilot" bumper sticker!


At $15,500, we'll add 2 more new monster encounters, increasing the total number of new and unique monsters to 16! For physical or PDF pledges!


More to come!
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New to Nerdronomicon? Add on some of our previous adventures!

Receive print and PDF copies of The Sorcerer's Fate, The Sorcerer's Return, Aufgebläht or Bust, and the Mobius Mega-Dungeon Bookmark Set, plus a FREE Glow-in-the-Dark Enamel Pin ($10 Value!)

After the heroes of Rükstau don't return, it's up to you to investigate the demonic forces pouring out of the northern wood. Discover their source and escape with your lives in this 5½ x 8½" print and PDF 0-level funnel zine for DCC RPG.

The invitation from the Sorcerer Verrükter must be a joke. You found his dead body in a chamber deep below his manse. The invitation did mention that there would be cake, though. Learn the Sorcerer's secrets in this 5½ x 8½" print and PDF level-1 adventure zine for DCC RPG.

With food running out, the elders of Rükstau send you to the nearby city of Aufgebläht for supplies. All you need to do is get there in this tri-fold pamphlet, print and PDF, 0-level funnel-crawl for DCC RPG.

Each of these five 2x8" print and PDF bookmarks contains a different recursive dungeon with a map and accompanying tables that will have your players delving session after session. They can be combined or run individually.

Receive PDF copies of The Sorcerer's Fate, The Sorcerer's Return, Aufgebläht or Bust, and the Mobius Mega-Dungeon Bookmark Set, and save 10%! See the add-ons below for their descriptions.


After the heroes of Rükstau don't return, it's up to you to investigate the demonic forces pouring out of the northern wood. Discover their source and escape with your lives in this PDF 0-level funnel zine for DCC RPG.


The invitation from the Sorcerer Verrükter must be a joke. You found his dead body in a chamber deep below his manse. The invitation did mention that there would be cake, though. Learn the Sorcerer's secrets in this PDF level-1 adventure zine for DCC RPG.

With food running out, the elders of Rükstau send you to the nearby city of Aufgebläht for supplies. All you need to do is get there in this tri-fold pamphlet PDF 0-level funnel-crawl for DCC RPG.

Each of these five PDF bookmarks contains a different recursive dungeon with a map and accompanying tables that will have your players delving session after session. They can be combined or run individually.

This 1½ x 1½" Nerdronomicon glow-in-the-dark 2-post enamel pin will add a splash of spooky, geeky flair to your uniform.

Show your fealty by adding this 2½ x 2½" sewn Nerdronomicon patch, with the name "Nerdronomicon" emblazoned in glow-in-the-dark green, to your favorite denim vest.


Receive five print copies each of The Sorcerer's Fate, The Sorcerer's Return, Aufgebläht or Bust, and the Mobius Mega-Dungeon Bookmark Set for 65% of MSRP.

Receive five print copies of The Sorcerer's Fate 5½ x 8½" 0-level funnel zine for DCC RPG at less than 67% of MSRP.

Receive five print copies of The Sorcerer's Return 5½ x 8½" level-1 adventure zine for DCC RPG at less than 67% of MSRP.

Receive five print copies of the Aufgebläht or Bust tri-fold pamphlet 0-level funnel-crawl for DCC RPG at 60% of MSRP.


Receive five print copies of the Mobius Mega-Dungeon Bookmark Set, featuring five bookmarks filled with hours of dungeoneering fun for 60% of MSRP.
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We're in playtesting now (backers will be invited to online playtest sessions once the campaign wraps up). Once we've worked out the bugs, we'll finish writing it up, illustrating it, etc. We aim to have things in the mail to you sometime in October 2026!


MEGADUNGEON REWARD

Support 2+ or more projects from Goodman Games, Monte Cook Games, Kobold Press, Ghostfire Gaming, Loke Battle Mats, Rowan, Rook and Decard, or Troll Lord Games to unlock the MEGA-Exclusive Reward:
A MEGADUNGEON BONUS PDF.

Each publisher will create 3–4 pages of exclusive content, including monsters, traps, treasures, and twists, all mashed together.

The only way to receive this exclusive incentive is by pledging to 2+ or more of the above anchor projects!
Pledge for all the Castle Whiterock indie projects to complete the Lost Level!


A Multi-Publisher Megadungeon Extravaganza!

Castle Whiterock is a classic castle-themed megadungeon that sits at the center of an incredible multi-publisher crowdfunding event! Thirteen lucky crowdfunding projects are supporting and expanding this huge megadungeon to make it even more amazing!



Unlock The Mysterious Lost Level by Supporting Multiple Projects!

Pledge for more than one Castle Whiterock project to get a special stretch goal only available with multiple pledges!

  • Pledge for the Goodman Games Castle Whiterock to get the mysterious map of the Lost Level of Whiterock...
  • ...then, for every other Castle Whiterock project you support, you'll get full encounter details for one room of the Lost Level!
  • Pledge for all 13 projects and get the Lost Level plus complete descriptions of every single room on it!

This bonus Lost Level is in addition to the existing rewards and stretch goals for every project you see on the Castle Whiterock page!
If you believe that this project is not in compliance with BackerKit’s Community Guidelines or Terms of Service, you can file a report by sending a message via this link: Report this project

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