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Mysteries of the Yokai
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Mysteries of the Yokai

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An age of spirits and mysteries

Seeking to bring together the Heavens and the Earth, the former Emperor of Japan performed a Grand Rite to connect them. But this did not go as planned and the Imperial capital of Heian fell into ruin. The lines between the worlds have blurred and now the mysterious and powerful spirits known as yōkai walk the world of mortals. This is the dawn of a new Age of Spirits, but will it be an age of unparallelled strife, or one of understanding? The supernatural and mortal worlds must now learn to coexist, lest they destroy one another. It will be you adventurers, versed in the ways both of humans and spirits, who will set the course of history.

Mysteries of the Yōkai is a tabletop RPG set in a historical fantasy version of Classical Japan where your epic tales are set to unfold. Explore a mythic world, walk the line between man and yōkai, and create new legends of your own. In the Age of Spirits, harmony is just as important as conflict. Only by joining together with your fellow adventurers can you solve the problems of a world struggling to reconcile the supernatural and mundane.

Mysteries of the Yōkai: Core Rulebook

This book contains everything you need to play Mysteries of the Yōkai.

You can explore the Age of Spirits in the Setting Guide and read all about the yōkai and their strange abilities in the Bestiary. Then create your own personalized heroes from the wide variety of options in Character Creation. Watch your characters grow and learn new techniques as they adventure through the land of Japan.

Make any type of conflict the focus of your story with the Tide and Morale system: fierce battles, heated debates, puzzling mysteries, or any other conflict you want to play through. Create, run, and play in engrossing campaigns filled with mysteries, exploration, danger, and excitement.

Character Creation

Create any kind of Character you want using a point-buy system. Stalwart human samurai, a tengu detective that can fly, or a tsukumogami broom just trying to understand its place in a strange new world after awakening.

Conflict Resolution

The Tide and Morale system allows GMs and players to model any kind of Conflict using the same rules. Actions taken by a Character that harm or impede their opponents, or support their allies, inflict Tide damage, which moves the Tide of Battle back and forth on a tracker. When the Tide of Battle has been pushed far enough against one side, that side takes Morale Damage, which may force some of its members out of the Conflict.

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Reviews (1)
Discussions (3)
Customer avatar
Christopher L August 10, 2018 6:26 am UTC
Any chance we'll be seeing additional books for this? I really like what you've got here - and while I'm uncertain just *what* you could add, I love seeing new concepts added to these kind of things. :) Perhaps Chinese spirits and creatures, or Korean (since those are so rarely touched upon) or Philipino?
Customer avatar
Matt T August 17, 2018 11:41 pm UTC
We plan to add additional setting books and adventure modules going forward. Currently we’re writing The Bureau Files, which contains adventures and additional information on one of the game’s major factions, but there is no ETA set for its release yet.

Following that, we’re gathering feedback to see what kinds of content people would like to see most. Andrew has a pitch in development for a book that explores traditions, creatures, and folklore of Southeast Asia, which may have some of the things you’re looking for.

Thanks very much for the review, and your question about Chinese and Korean encounter NPCs. The more we hear from people, the more we can plan additional material for the game.
Customer avatar
Simon B July 10, 2018 10:12 pm UTC
Customer avatar
Alexandre L July 10, 2018 9:13 pm UTC
Any information regarding the game engine, it´s most basic mechanics and features?
Customer avatar
Matt T July 11, 2018 12:38 am UTC
At the basic level, 3D6 for task resolution, against a difficulty or opposing roll. Conflicts are resolved by taking actions that inflict damage called Tide Damage. PCs are grouped on one side, opposing NPCs on the other. Whenever a character succeeds at an action, it inflicts a certain number of Tide Damage, which gets pushed back and forth against the two sides. When enough damage is done (usually 7 points, but can vary with the situation), Morale Damage is inflicted, which is used to force Characters out of the battle.

You can grab the Introductory Book from the downloads section of the main company page ( or direct PDF link ), it steps through the basic conflict mechanics.
Customer avatar
Christopher L August 10, 2018 6:25 am UTC
Love what you did for skills. Kudos.
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Product Information
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25.35 MB
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File Last Updated:
May 31, 2018
This title was added to our catalog on July 10, 2018.
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