Buried beneath a shattered world lies a vast, interplanar prison: an ancient construct built to contain the most dangerous monsters in existence. But the seals are failing. Whispers of lost power and forgotten relics draw the desperate and the daring into its depths. For gold, glory, redemption - or revenge - the adventurers descend. But the dungeon is alive, watching, and it does not forgive trespass!

The World’s Largest Dungeon spans four volumes, packed with over 1,600 original encounters across 16 themed regions, covering every creature in the 5E SRD. It’s more than a dungeon crawl: it’s a campaign that will take your group from level 1 to 20, and still leave dark corners unexplored. With new maps, refined mechanics, and full 5E support, it’s an entire world beneath the earth...and it’s ready to test your mettle.

Originally released in 2004 by AEG (Alderac Entertainment Group), the World’s Largest Dungeon earned its name, and a Guinness World Record, with its staggering size and ambition. Designed by a dream team of writers including jim pinto, Robert J. Schwalb, Richard Farrese, Dana DeVries, Jeff Ibach, Patrick Kapera, and more, it became a cult classic for groups who craved a brutal, sprawling challenge. Now, 20 years later, the Platinum Edition brings it roaring back to the table, fully modernized for 5E and built to honor its infamous legacy.

This limited-edition Mimic Treasure Chest isn’t just a storage solution; it’s a snarling, tongue-lashing predator in disguise, ready to devour your books, dice, and delvers alike. Open if you dare! The World's Largest Dungeon Wooden Mimic Chest is exclusive to the Dungeon Master tier.

This chest will perfectly fit your World's Largest Dungeon slipcase and includes an interior compartment tray that is perfect for storing your gaming accessories. This unique, once-in-a-lifetime item will be a limited run and a campaign exclusive. When they are gone, they are gone!

 

Upgrade your World's Largest Dungeon books to Limited Run Collectors Edition Hardcovers with die-cut (see what we did there?) windows revealing the epic art within! The complete set includes all four World's Largest Dungeon volumes, unique slipcase art, the folio of all 16 poster-sized maps, and the magnetic GM screen that triples as a battle grid and cover for the slip case. Truly treasured artifacts worthy of your collection.

We've partnered with dice legends FanRoll Dice (previously Metallic Dice Games) to bring you a dice goblin dragon's horde of remarkable World's Largest Dungeon dice.

A mighty collection of 16 custom d20s with each die inspired by one of the monstrous dungeon bosses. Reward your players every step of the way with an amazing collectible to commemorate their victory (Or keep them all for yourself!).

A massive, clear, 55mm d20 capturing the dungeon's fiery mascot, Scorch the Dragon.

Distinct collectable polyhedral sets themed around classic adventurer roles: Dirty Delver, Glacier Explorer, Hot Head, Monster Slayer, Nature Lover, and Undead Hunter. Each set is themed for one of the World's Largest Dungeons' iconic adventurers AND comes with a free unique Delver STL. These highly detailed sculpts are not available anywhere else!

A surprise bundle containing one Delver dice set, one embroidered dice bag, one heavy metal coin, and one bonus surprise Boss Die!

An oversized dice tray with beautiful artwork printed on both sides. You unlocked this add-on at $550,000! Note this item will already be included and added to the Dungeon Master tier (which just keeps getting better and better!)  

Support our campaign with greater flexibility! BackerKit's Pay Over Time option allows backers pledging $150 or more to split their payment into four monthly installments after our campaign ends.

Here's how it works: When you pledge $150+, you'll see the Pay Over Time option at checkout. Once our campaign successfully funds, you'll be charged 25% of your total pledge monthly over four months. Your pledge is confirmed immediately, and you'll receive all rewards alongside other backers once fulfillment begins.

This payment flexibility makes it easier to support at higher tiers while managing your budget effectively.

There's no interest or additional fees, just a more accessible way to back the projects you love! Look for the Pay Over Time option during checkout when pledging $150 or more.

We understand that getting your rewards safely and on time is a crucial part of your crowdfunding experience. Here's what you need to know about shipping for this campaign:

Global shipping will take place from the US, spearheaded by fulfillment powerhouse Studio 2 Publishing. Studio 2 Publishing has 25+ years of experience with delivering tabletop games. It provides logistics and fulfillment for over 50 tabletop clients, including Studio Agate, Pinnacle Entertainment Group, Onyx Path Publishing, Mongoose Publishing, Acheron Games, and more. Studio 2 has produced, shipped, and fulfilled over 100 crowdfunding projects. 

We will charge shipping and relevant taxes after the campaign in the pledge manager. We estimate that fulfillment will begin in February 2026.

The World's Largest Dungeon has been being worked on for over 18 months. The layout will likely be completed before the campaign ends. Currently, the plan is to allow backers beta access to the digital edition immediately following the campaign. The beta and playtesting is planned for 3 months, and digital fulfillment is planned for September 2025.  

The calculations below are estimates and subject to change. We'll charge shipping once printing is complete and fulfillment is about to begin.

We are prepared for tariffs.

We planned ahead. Our campaigns and fulfillment plans were developed with awareness of the current volatility with tariffs and potential tariff changes, and we've already taken proactive steps to mitigate risk. Tariffs are a challenge, not a roadblock. We are still moving forward with our planned crowdfunding launches and print runs.

1. We're industry veterans. We've weathered past global disruptions, from COVID to container shortages, and delivered. We’re applying that same resilience and experience here.

2. Diversified production. We work with a variety of partners across multiple countries to reduce reliance on any single region, including China. We can and will produce this game even if the current high tariff with China remains in place.

3. We’ll keep you informed. If tariffs ever do affect a specific item or project, we’ll let you know early and clearly. You’ll never be in the dark.

4. We'll split the bill. We commit to paying 50% of the tariffs if all else fails, and it comes down to it.

5. Lastly, we're implementing a no-questions-asked refund policy. If, for some reason, you are hit with a fee you don't want to pay, you won't have to. We commit to fully refund any pledged amount upon request, minus 15% for platform and credit card fees.

Your trust is everything. We’re committed to honoring your support with quality products, on-time fulfillment, and full transparency: tariffs or no tariffs.

Special Thanks to: AEG, Studio2 Publishing, Strange Owl Games, Reaper Miniatures, FanRoll Dice, The Backerkit Team, CuddleCore Toys, Abby Normal Media, Portals to Adventure, and AudioRPG.

Thanks to the Vala Marketing Team: Grant & Heidi Mielke, Jake Neece, Cori Miller-Nye, Tony Zacarias, Rachel Perkins, Dake Buker, and Grethen Boley

Your involvement makes this project special, and we want to hear your thoughts every step of the way. Let's build this adventure together! We have a variety of ways for you to join our community at World's Largest RPGs!

If you need support or have any questions, please Join the Discord or email us at [email protected]

Our press kit can be found here - please contact [email protected] for any additional collaboration inquiries