Siege on the Cerulean Spire: An Epic 3rd-Level Adventure

Siege on the Cerulean Spire: An Epic 3rd-Level Adventure

Explore the mysteries of a time-traveling tower under siege in this mind-bending adventure! Compatible with Dungeon Crawl Classics and 5E.
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Started: Tue Apr 21 7:10AM

Duration

9m 50s

Backers

2

Raised

$211

🗓 Estimated to ship by July 31, 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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A Stunning Arrival

Delving deep into the caverns beneath Castle Whiterock, your party enters the vast and shifting glades of the mysterious Far Garden. Suddenly, a loud crack rings out as a mysterious structure materializes before them!

Wait! Where did THAT come from?!


Within await monstrosities, mysteries, and much more than the heroes bargained for. Will they have the wit and mettle to reach the tower's apex: The Magnificent Cerulean Spire?

This third-level adventure pits 4-6 player characters against a magical and confounding vertical dungeon, with sixteen floors of varied encounters. Alongside these encounters are optional events that could shape the future of the party...and their world!


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The Tower Denizens

Many strange and terrible creatures lurk about the tower's many levels. From corrupted warriors to malfunctioning constructs, a seasoned party is sure to meet their match.
Ever feel like you're trying to beat the clock??


Oh, and did we mention how difficult it is to make like a tree and leave the tower once inside?

Only you can prevent forest fights! (Great art from Matt Morrow!)
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Level after Level of Perils and Puzzles

Heroes who ascend the Cerulean Spire find level after level of confounding puzzles and dangerous adversaries. And the clock is ticking. Failure to reach the top in time could bring about the end of the world as they know it!

The tower gathers all sorts of friends and foes!
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A Stand-Alone Adventure or Castle Whiterock Tie-In

You never know when or where the reality-hopping edifice of the Cerulean Spire will show up!

You can drop this adventure into an ongoing campaign, run it as a mind-blowing epic, or make it a memorable interlude in your Castle Whiterock dungeon crawl!

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Shipping

We ship using the USPS, and the cost of shipping will be determined after the campaign during pledge management. 

As we're sure you know, shipping costs are volatile right now because of the price of fuel, and charges will vary depending upon add-ons. 

Because of the costs, we only ship physical copies in the United States. 
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Fulfillment

The text of Siege on the Cerulean Spire is complete, we have received most of the art, and we are in early stages of layout. We anticipate shipping books by July 2026! (So be ready to fill out the survey when it arrives!)

Mega Dungeon Month



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!

Castle Whiterock Collab

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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