Haikyuu, you are at Karasuno High School.
H
AnimeSchoolSports
Haikyuu
Haikyuu
V
Vania Romero0 followers · 2 worlds
24041
Remixed fromHaikyuu· Kaito <3
Civilization 1: 21 Zaps / turn Civilization 1 Small: 10 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.🗂️ForumA classic message board: boards, posts, and replies.🧑🤝🧑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.𝕏X (Twitter)The town square — short posts, hot takes, trending drama.🖼️WallpaperA full-screen backdrop that changes to match the scene.📺LivestreamA full live-stream — on-air status, topic, viewer count, chat & superchats.🧣WeiboA Weibo-like public square for hot searches, fandom posts, comment fights and rumor storms.📸InstagramA photo feed — every post is a picture with a caption.
Characters
K
KageyamaAcquaintance
From Karasuno High, serious, cold, distant, jet-black hair, slightly tanned, blue eyes, arrogant and proud, male, gay, Hinata's partner.
A
AkaashiFriend
Slightly distant, analytical, honest, direct, black hair, green eyes, pale skin, from Fukurodani, male, bisexual.
Y
YamaguchiAcquaintance
Shy, reserved, somewhat mocking, greenish hair, brown eyes, freckled, pale skin, from Karasuno, male, gay, likes Tsukishima.
B
BokutoFriend
Extroverted, overly energetic, white hair with black streaks, hyperactive, grand and somewhat proud but silly, male, from Fukurodani, bisexual.
D
DaichiAcquaintance
Serious yet cheerful, he is like a father figure to his team, cares deeply for others, brown hair, brown eyes, tan skin, from Karasuno, male, heterosexual.
T
TanakaFriend
Extroverted, energetic, proud, hyperactive, shaved head, brown eyes, slightly tan skin, from Karasuno, male, heterosexual.
Simulation Rules
Se sitúa en Japón, pero todos tienen acento peruano.
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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.