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Watch trailer on Steam ↗The Hundred Youkai Master
OCG FCGD Division, OCG S studio · Published by 株式会社ワンコネクト
Mostly Positive — 77% positive (13 reviews) · 10 achievements
Last updated 8 Oct 2026
Lead 100 yokai in this hardcore tactical RPG. No grinding, no fluff—pure strategy and brutal battles.
£9.99
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
RPG · 2025 · More £5 - £15 games
Command your unique yokai squad in pure strategy battles, where each choice matters. Dive into The Hundred Youkai Master's intense RPG experience without grinding or fluff.
About this game
The Hundred Youkai Master
A tactical command RPG featuring over 100 yokai.
Form your ultimate Hyakki Yagyō, master deep strategy, and conquer deadly encounters!
Challenge yourself in a battle-focused, high-difficulty RPG—no exploration, just pure tactics.
Designed for players seeking high-difficulty and challenging battles.
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
System Requirements
Will my PC run this? →Minimum
- OS: Windows10, Windows11
- Processor: Intel / AMD
- Graphics: Integrated graphics
- Storage: 800 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
17日AM3:00まで！15%オフ｜春の大感謝セール
最大80%オフ！春の大感謝セール開催中 期間限定15%オフ！ 迷っている時間はありません。 17日 AM3:00終了 ワンコネクトゲームス作品が一斉値下げ中。 この春、あなたの積みゲーを増やすチャンスです。 今すぐチェック。 https://store.steampowered.com/search/?developer=%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%83%AF%E3%83%B3%E3%82%B3%E3%83%8D%E3%82%AF%E3%83%88Read full article on Community Announcements (Aki)Patch NotesOfficial
最終ボス背景継続不具合修正
いつも『百陽師』をご利用いただきありがとうございます。 11月18日のリリース後、一部特定の動作を行わない限り 最終ボスに挑戦した後、勝敗に関わらず、その後の全バトルの背景が最終ボス背景のままになる不具合 が発生しておりました。 本日、この問題を修正したアップデートを公開いたしました。 プレイヤーの皆さまにはご迷惑をおかけしてしまい、誠に申し訳ございません。 引き続き快適にプレイしていただけるよう改善を進めてまいりますので、 今後とも『百陽師』をどうぞよろしくお願いいたします。Read full article on Community Announcements (Aki)AnnouncementsOfficial
Announcement of the Official Release of the “Hardcore High-Difficulty RPG”
Thank you for waiting! Today, we have released the official version! This is a high-difficulty game designed for hardcore players. Gamers confident in their skills — please give it a try! ■ What is Hyakuyōshi? ■ The protagonist is Sei, a female onmyoji who has lost her onmyō arts. To reclaim her lost abilities, she forms the strongest army by selecting from 100 uniquely skilled yokai. Each yokai features different attributes, skills, and combo techniques. Deep strategy is required from the very moment you begin building your team, allowing you to enjoy experimenting with countless combinations among the 100 yokai. A command-battle RPG completely specialized in “combat” and “training.” From among many yokai with various attributes, skills, and combo techniques, you will form your very own Hyakki Yakō. ■ Official Version Update Details ■ 【UI/UX Renewal】 Menu screen redesigned with a more polished look Major improvements to the editing screen! Added search functions for easier yokai management 【New Encyclopedia System】 Three encyclopedias added: “Yokai Encyclopedia,” “Combo Encyclopedia,” and “Story Encyclopedia” As a collection feature, completion gameplay is now even more enjoyable! 【Battle System Evolution】 Large number of new combo techniques added! Strategy depth greatly increased Adjusted so that combos can activate even when inaction is caused by conditions other than being knocked out 【All Content Unlocked】 All ★★★, ★★★★, and ★★★★★ quests implemented Story complete! The narrative finally reaches its climax Large-scale balance adjustments for all enemies and allies to deliver a more comfortable gameplay experience Bug Fixes – Story display bug in ★7 quests – Achievement unlock bug when clearing ★7 After the update, players who have already cleared ★7 will unlock the achievement upon opening the menu. Previously unviewed stories in the “Story Encyclopedia” will now be viewable. ・During the first load after the version update, depending on your save data, the menu...Read full article on Community Announcements (Aki)AnnouncementsOfficial
ついに正式版リリース決定！「百陽師」が完全版へ
長らくアーリーアクセスでご支援いただき、誠にありがとうございます！ 皆様のおかげで、「百陽師 - 悪意に捕らわれた妖を気まぐれに解放していたら仲魔が百体になっていた戦略的コマンドバトルRPG」がついに正式版として生まれ変わります！ 正式版アップデート内容 【UI/UXリニューアル】 メニュー画面を一新！より洗練されたデザインに 編集画面も大幅改善！検索機能の追加で妖怪管理がさらに便利に 【新・図鑑システム】 「妖怪図鑑」「合技図鑑」「物語図鑑」の3つの図鑑が登場 コレクション要素として、やり込みプレイがさらに楽しく！ 【バトルシステム進化】 合技を大幅追加！戦略性がグッとアップ 戦闘不能以外の行動不能状態でも合技が発動するように調整 【全コンテンツ解放】 ★★★、★★★★、★★★★★のクエストがすべて実装 ストーリー完結！ ついに物語のクライマックスへ 敵味方含めた大規模バランス調整で、より快適なゲームプレイを実現 不具合修正 ★7クエスト時の物語表示不具合 ★7踏破時の実績解除不具合 ※アップデート後、★7踏破済みの方はメニューを開くと実績が解除されます ※「物語図鑑」で未確認だった物語も確認可能になります リリース日は近日中にお知らせできる予定です。 ついに完成を迎える『百陽師』の世界にご期待ください！ -------------------------------------------------------------- アーリーアクセスプレイヤーの皆様へ ここまでプレイしてくださった皆さま、本当にありがとうございます。 ついに『百陽師』が―― 正式版としてリリースされます！ アーリーアクセスでいただいたご意見を元に、 システム、バランス、UI、物語……すべてを磨き上げました。 新しい図鑑や追加クエスト、合技の強化など、 「百陽師」の世界をより深く楽しめるようになっています。 正式リリースの日まで、もう少しだけお待ちください。 最後の仕上げ、全力で進めています！Read full article on Community Announcements (Aki)AnnouncementsOfficial
“Hyakumyōji” to Exhibit at Tokyo Game Dungeon 9
“Hyakumyōji” to Exhibit at Tokyo Game Dungeon 9 We’re excited to announce that our Japanese-style strategy RPG “Hyakumyōji” will be exhibited at the indie game event Tokyo Game Dungeon 9. Booth: 3H-11 Venue: Tokyo Metropolitan Industrial Trade Center (Hamamatsuchō Hall, 3rd & 4th Floors) Date: Sunday, August 3rd, 2025 — 11:00 AM to 5:00 PM (General admission starts at 12:00 PM) Official Website: https://tokyogamedungeon.com/ At the venue, we’ll be showcasing a playable demo of Hyakumyōji. Command a hundred yokai and master the battlefield in a world where mystery and conflict intertwine. We look forward to welcoming you at our booth and sharing this unique experience with you in person!Read full article on Community Announcements (Aki)
