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Lair of the Rat Kings

Created by Onyx Path

Adventure in the underground world with the uplifted mice and rats who live there and those who rule those domains - the Rat Kings! Help us create this latest book for the Realms of Pugmire TTRPG in PDF and PoD versions!

Latest Updates from Our Project:

Cheese the Day! This Project is Funded!
4 months ago – Thu, Jul 16, 2026 at 03:17:30 PM

Hello Tail-blazers,

I know this is a pretty small project (like a mouse!) and a small funding goal, but it still reached that target faster than I'd expected!

While similar to our Pugmire Unleashed book from last year (now available at DriveThruRPG and in our Add-In Options!), this project was still a bit out there ... or under there... and you never know how things will all come together. 

Anyway, enough squeaking around. It's true...

The LAIR OF THE RAT KINGS has been FUNDED!


and with that in paw, let's see what comes next!


As we increase the overall funding and support for the project, we’re able to add additional resources to the project, expand the rewards listed, and add in new offers and opportunities. Each Stretch Goal will have a target that, once reached, will add a project to the reward list for backers of the relevant Pledge Level. Whenever we achieve a stretch goal, the listing will be updated to reflect the achievement.

Like I said, this is a smaller project, and we want to make sure the project stays manageable and deliverable on time, so we're going to focus on some traditional Onyx Path milestone markers and then some upgrades to make the book even better.


At $3,500 in Funding - BACKER SHIRT ON REDBUBBLE
A Rat Kings-themed Backer shirt will be hosted on Onyx Path’s Redbubble store for a limited time. All backers will be notified when the shirt becomes available for purchase. 


At $5,000 in Funding - LAIR OF THE RAT KINGS MAP UPGRADE 1
Map Upgrade 1 - Red Paw Gang's Burrows. The planned hand-drawn maps to help roughly orient Guides and players will be upgraded to a full detailed and gridded map to aid game play. 

So, the first stretch goal is a celebration and a milestone marker. We've funded and we're growing!

The second Stretch Goal is an enhancement to the book. You won't see the related material until we get to Chapter 5 near the end of the campaign, but the plan is to make the maps sort of hand-drawn (paw-drawn?) and sketchy, to give the Guide a general sense of how it all fits together. But if we achieve this stretch goal, we can do something a little more traditional, with a gridded-style map that can really help out in any combat or exploration situations. Basically, it gives the team a few more resources to work with and expands the options ahead.

So please continue to spread the word! Share the message in your social circles and on your social media! This project is now funded, so the Lair of the Rat Kings book will become a fully-developed reality. New backers will be able to read along with the manuscript downloads as they come out, know that the project will happen, and help us add even more content and potential rewards for backers!

While we continue to recruit new backers, we're also going to keep getting sneak previews from the book! Tomorrow we'll get some fiction that will be included in the final form (along with a traditional Pugmire pun title!), and on Monday we're going to learn more about some Psionic Power Descriptions before getting the full Psionics chapter on Tuesday!

SqueaksAhoy!

Down, down, down into the Underneath! Welcome to the Lair of the Rat Kings!
4 months ago – Thu, Jul 16, 2026 at 11:02:56 AM

Hello Tail-blazers!

The LAIR of the RAT KINGS is now LIVE and funding on Crowdfuding by BackerKit!


The Realms of Pugmire core rulebook covers a lot of ground, but now it's time to go further into the shadows and the world Underneath...

Lair of the Rat Kings is a full campaign sourcebook detailing a new and exciting part of the realms of Pugmire: The Underneath. It contains not only everything you need to know about the Underneath, but also has information about making rodent player characters (along with their psychic powers), advice on how to run a subterranean campaign, a complete adventure, and a massive number of locations, set pieces, and encounters.

Some highlights from the Lair of the Rat Kings include:

  • Complete character creation rules for mouse and rat player characters, including a new system detailing their unusual psionic powers
  • Details on psionic inventions, and how player characters can create their own
  • Guide advice on running massive underground campaigns, along with details on the elusive and terrifying Cult of Labo Tor
  • A complete adventure introducing the Underneath, along with encounters and four complete mini-adventures which all link together into one massive subterranean campaign



My name is James, and I’ll be your Onyx Path Crowdfunding Concierge for this fun new project - Lair of the Rat Kings, the latest rules options and setting expansion for the Realms of Pugmire tabletop roleplaying game. Including new rules for rodent characters, psionic abilities and inventions, plus more! There's a lot of options to add to your Realms of Pugmire game within these pages.
 
I’ll be updating the campaign as we go, sharing the draft mansucript previews, answering questions, and providing support wherever needed as best I can.


I’ll note that I’m not part of the creative team on this project – so I won’t be able to immediately answer some of the more intricate rules or design inquiries – but having me manage this Crowdfunding campaign allows Eddy and the Pugmire crew to keep their focus on the awesome projects that they’ve got in the works.

That said, feel free to make me your point person for any questions or issues you may have. I'll make sure to dig up answers as quickly as possible and clear up any issues that arise. Mostly, I'm just looking forward to an exciting ride along with all of you on this project.

Our comment section is for all members of this community – united by our shared desire to see this project fund and develop – to cheerlead the project and figure out how best to spread the word about what we’re building here. If you’ve started a thread on whatever social media platform exists today or a Discord conversation about the game or this campaign – let me know about it so we can share that info. If you’ve discussed the game on a blog or podcast, let’s hear about it! If you’ve got funny ideas for social media hashtags, well we can do those too!

I will also be the person who gets to share the updates and previews with you! As noted on the main page and in the pledge descriptions, I also get to share an exciting treat – The Lair of the Rat Kings Draft Manuscript previews, so you can start reading the book immediately! You'll receive a direct link once you pledge, or you can scroll down to the bottom of this post on the website to see the first BACKERS-ONLY update for a download link.

So, welcome to Crowdfunding by BackerKit! Welcome to a ton of new options for your Realms of Pugmire game! Now let's gather the gang and dig deep and see if we can't explore further into the Lair of the Rat Kings!



Digital and Print-on-Demand Rewards

We know times are hard these days, particularly with rising costs and economic uncertainty, so we’ve designed this crowdfunder to be as painless as possible. We offer a wide variety of digital options for backing, as well as leveraging print-on-demand technology to have physical products printed as close to you as possible to cut down shipping and reduce tariff concerns.


Creating and fulfilling physical versions this way gets you the best price, fastest delivery, and excellent customer support!

DriveThruRPG's printing partners are located both within in the USA and the UK (and expanding), making shipping cheaper and avoiding the tariffs incurred by international manufacturing and shipping!



Draft Manuscript Previews

Over the course of the next 4 weeks, backers will receive the entire current draft manuscript for Lair of the Rat Kings, but it's not going to come to you all in one go. The previews will come out in squeak-sized treats throughout the campaign. This helps me seem interesting over the next 28 days, but it's more about guiding the conversation and helping steer feedback for the developers.

Because they want your feedback! These manuscript previews are of the current draft manuscript – the document in its latest, approved form. This may not be the final form after editing and any additional development, but you can consider it about 95% finished, so keep that in mind.

In fact, you can help guide the team through the next stages of development by providing feedback on these manuscript previews! The Onyx Path team has set up a special Feedback Form just for campaign backers for this very purpose: <Lair of the Rat Kings Feedback Form>



You can use this Feedback Form to share your thoughts directly with the Pugmire developers and help guide them through the next rounds of development and editing.


DRAFT MANUSCRIPT PREVIEWS - BACKERS ONLY

Remember, thanks to BackerKit magic, these download links are visible to Backers only - you must be logged in and reading this on the website to have access to the manuscript preview links. So, if you're reading this via e-mail, click that "Reply to this Update" or "Learn More" button on the bottom and I'll see you below this title treatment.