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COMING EARLY FALL 2026!
The Castle Automatic's great gears sat still for an age. Now, His Majesty the Worm has begun the machines again…
What is The Castle Automatic?
The Castle Automatic is a 100+ room, 5-level Metroidvania-style dungeon designed for use with His Majesty the Worm, the 2x ENNIE-winning, tarot-based RPG. In the module, players will repair magi-mechanical engines that control the castle's sun, moon, weather, and seasons to overcome its deadly challenges.
Use it as an entire campaign! If you're new to His Majesty the Worm, you can get started with just this dungeon, the core book, and a single tarot deck! Or, slot it into your personal Underworld, expanding the core game with all new talents, monsters, dungeon lords, and magical treasures.
Importantly, The Castle Automatic is easy to run. Puzzles, traps, and combat sites are illustrated and included as handouts to be shown during play. The GM has a dungeon tracking sheet to monitor the castle's current state: mechanisms broken and repaired, time of day and year, and current factions in play. With maps for the GM, for the players, and included on every dungeon spread, it's easy to understand the sprawling space.
Megadungeon, megafast
New to His Majesty the Worm? Want a ready-made dungeon to get started with? The Castle Automatic is for you!
This dungeon has it all
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A reason to explore: Four magical artifacts are locked inside the castle—each is powerful enough that the factions of the City would give anything an adventurer wanted to get their hands on one. Also, adventurers can meet mentors to learn all new talents!
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A reason to experiment: The Castle Automatic's magical engines are broken. Adventuring guilds can repair them to change its seasons, the weather, and the day/night cycle to overcome different challenges and unlock new sections of the dungeon.
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A reason to talk: The dungeon is controlled by competing factions of golems, ancient giants who once ruled this place, and the otherworldly vampires who stole it from them.
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A reason to fight: The module contains fully illustrated combat zones with new creatures and dungeon lords, including a wyvern, a shapeshifting vampiric hierophant, and four mechanical kings.
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A reason to be surprised: Illustrated puzzles and traps let enterprising players balance risk and reward as they explore five interconnected levels.
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A reason to breathe easy: GMs have lots of conveniences—handouts, maps, and indices—to make running as easy as possible.
A reason to return: With 100+ rooms, there's plenty of content to sustain an entire campaign of His Majesty the Worm.
The Team
Josh McCrowell is obsessed with dungeons. In addition to His Majesty the Worm, he wrote a step-by-step guide to help GMs create dungeons that are fun and engaging. The Castle Automatic is a manifestation of his dungeon-design philosophy.
Interior fantasy art is provided by Marcin and Felipe Faria. Puzzles, boss fights, and traps illustrated by Tiger Wizard. Cover art by Strega Wolf.
Cartography (player map, GM map, and minimap) illustrated by Guy Pradel.
Published by Exalted Funeral Press
Approx 150 pages, A4, black and white interior and cover.
PDF included. Art, dungeon tracker assets, and maps are also included as separate assets so GMs can easily distribute them to their players and display them during the game.
The Early Worm preorder campaign has ended. Please use the back in stock notification signup to be notified when it releases.
