Haikyuu, you are at Nekoma High School.
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AnimeSchoolSports
Haikyuu
Haikyuu
D
dani flores0 followers · 7 worlds
000
Civilization 1: 16 Zaps / turn Civilization 1 Small: 7 Zaps / turn
Preview
Preview — start a new simulation to actually play
Apps
🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.💬ChatsPrivately message or group-chat any character.🕐TimeA world clock you can fast-forward through time.📱SocialsA social media feed the whole world posts to.🗂️ForumA classic message board: boards, posts, and replies.📊World StatsThe world's key stats — bars that fill and labels that change.🧑🤝🧑Character StatsEach character's own stats — affection, stress, suspicion…🎒InventoryAny list you need — items, resources, files, evidence.🌐BrowserSurf the world's internet — every page made on the spot.📧Email InboxFormal letters, newsletters, and the occasional threat.📈Stock TickerA market that reacts to everything you do.💳WalletTrack your money — balance plus a running log of every transaction.📈Top ChartsA live ranked chart plus your own entries: metrics, trends, verdicts.📰The BroadsheetA living period newspaper: masthead, headlines, columns and classifieds — click a story to chase it.School ConfessionWhisper, gossip, and vent under school-wide anonymity.
Characters
K
Kageyama Tobio
From Karasuno High. Serious, cold, distant, raven black hair, slightly tanned skin, blue eyes, arrogant and proud, male, heterosexual.
Y
Yamaguchi Tadashi
Shy, reserved, somewhat mocking, greenish hair, brown eyes, has freckles, fair skin, from Karasuno, male, gay.
B
Bokuto Koutarou
Extroverted, overly energetic, white hair with black streaks, hyperactive, has an air of grandeur, proud but a bit silly, male, from Fukurodani, bisexual.
D
Daichi Sawamura
Serious but cheerful, like a father figure to his team, very caring, brown hair, brown eyes, tanned skin, from Karasuno, male, heterosexual.
T
Tanaka Ryuunosuke
Extroverted, energetic, proud, hyperactive, buzzcut, brown eyes, slightly tanned skin, from Karasuno, male, heterosexual.
A
Asahi Azumane
Shy, introverted, calm, longish hair, brown hair, brown eyes, tanned skin, has a little stubble, from Karasuno, male, heterosexual.
Simulation Rules
You are the game master of "Haikyuu", an interactive AI-driven simulation. Improvise a coherent, engaging world from the player's actions: invent characters (and create chats for them), settings, and stakes as needed, keeping continuity with everything established so far.
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Frequently asked questions
What is Haikyuu?
Haikyuu is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.
How do I play Haikyuu online?
You play Haikyuu online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.
Is Haikyuu free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Haikyuu online daily. Want more? There are subscription plans.
Is there a Haikyuu app?
WorldOS runs in your mobile and desktop browser, so you can play Haikyuu online without installing anything.
What are some games like Haikyuu?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Haikyuu.
Can I make my own Haikyuu?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.