No shikigami. No spells. Only wit—and a hundred yokai. Sei, a girl without onmyo powers, ends up leading a legion of yokai she once saved by chance. Assemble your Hyakki Yagyō and face terrifying foes with strategy alone. A punishing, high-difficulty command-based RPG awaits!
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General / Cinematic | 戦闘特化RPG 百陽師 プロモーション映像①

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Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“We chose Early Access to refine the game’s strategic systems—particularly combat balance and party-building—based on player feedback.
We also aim to expand the world of Hyakuyoushi with new yokai and unique team techniques alongside our players.”

Approximately how long will this game be in Early Access?

“We aim to remain in Early Access for approximately 6 to 12 months.
This may change depending on player feedback and the development pace of additional features.”

How is the full version planned to differ from the Early Access version?

“We plan to enhance the following aspects based on feedback received during the Early Access period:

Adjustments to the balance of the battle system

Optimization of conditions for “Yōryoku Unleashing” and “Co-op Skills”

Improvements to the UI and overall usability

Enrichment of in-game visual effects and animations

While the core game content is already close to completion during the Early Access phase, we aim to further refine the overall experience and make the gameplay even more satisfying.”

What is the current state of the Early Access version?

“The early part of the main story and all playable yokai (a total of 100) have already been implemented. The battle system, growth system, and menu functions are also fully in place.
Players can play from beginning to end and experience all of the game's core systems.
Going forward, we will focus on adjusting numerical balance and combat mechanics to ensure that all players can enjoy fair and strategic battles.

Will the game be priced differently during and after Early Access?

“The game’s price may increase slightly at full release to reflect additional content and system improvements.”

How are you planning on involving the Community in your development process?

“Community feedback plays a key role in refining combat balance.
We welcome your thoughts on battle pacing, difficulty, skill conditions, and more via Steam forums or social media.
Your input will help us create a more strategic and satisfying combat experience.”
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About This Game

The Hundred Youkai Master

A powerless onmyoji leads a hundred yokai into battle—

"Hyakuyoushi" is a command-based strategy RPG with a deep tactical core.

Follow Sei, a young onmyoji who has lost her spiritual power, and the twin nine-tailed foxes Kuro and Shiro, as they embark on a journey to reclaim her lost arts.

A girl without onmyō arts—Haru.

Without pacts nor mystical talent,

she faced the youkai simply as a friend.

Behind her carefree smile lies a will stronger than any spell.

Now, with a hundred allies at her side,

the false onmyōji tears through the darkness.

Dōman, the archenemy who cursed Haru’s master to death.

A genius of orthodox onmyō arts,

he tramples youkai with elegance and cruelty.

To him, battle is beauty—and mockery, his art.

For Haru, this "embodiment of curses" stands as the ultimate wall she must break.

■ Game Overview

Choose 4 yokai from a pool of 100, each with their own attributes, skills, and combo techniques, to form your ultimate party.

All yokai can grow strong with proper training—build your own unbeatable Hyakki Yagyō!

Combat is turn-based and highly strategic.

Victory hinges on skill order, buffs/debuffs, formation choices, and resource management.

With no exploration or mini-games, this title focuses entirely on combat, delivering a fast-paced and concentrated tactical experience.

■ Key Features

・100 yokai to recruit and battle with!

 A limitless variety of team compositions and strategies based on skills, elements, and synergy.

・Deep, strategic command-based combat

 Skill sequencing, formation tactics, and buff/debuff timing all matter.

・Permanent growth system

 Monsters gain strength through battle and fusing duplicates (Yōryoku Unleashing).

 Equip powerful gear to your favorite yokai to bring out their full potential!

・Temporary growth mechanics

 Relics and Yokai Seals grant temporary boosts within quests. Use them wisely for speed runs and high-level tactics!

・Multiple playstyles supported

 Whether you prefer brute strength through training or efficient runs via tactical buffs—the choice is yours.

■ Combat System

・Turn-based command battle (no grid movement)

・Each yokai has multiple unique skills

・Skills consume cost points—plan your turns and resource usage carefully

・Combining skill order, buffs, and combo attacks changes the tide of battle

■ Game Details

・Playable yokai: 100

・Save system: Manual and auto-save supported

・Languages: Japanese / English / Simplified Chinese

・Mode: Single-player only / Full controller support

・Difficulty: No difficulty setting (stages increase in challenge over time)

■ Recommended For Players Who:

・Enjoy character growth and tactical depth

・Want to raise and use their favorite units long-term

・Prefer fast-paced battles without interruptions

・Like focusing on strategy over exploration

・Love Japanese folklore, yokai, and onmyoji themes

・For those seeking high difficulty and challenging battles

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

We use AI to generate some of the characters and backgrounds.

System Requirements

    Minimum:
    • OS: Windows10, Windows11
    • Processor: Intel / AMD
    • Graphics: Integrated graphics
    • Storage: 800 MB available space

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