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Haikyuu

Q: 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.

Q: 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.

Q: Is Haikyuu free to play online?

Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Haikyuu regularly. Want more? There are subscription plans.

Q: Is there a Haikyuu app?

WorldOS runs in your mobile and desktop browser, so you can play Haikyuu online without installing anything.

Q: 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.

Q: 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.

Kaito <317 followers · 28 worlds

3537K14

Play Now

8–12 Zaps / turn

Haikyuu

Characters

Kageyama

Acquaintance

From Karasuno High. Serious, cold, distant, black-haired, slightly tanned, blue eyes. Arrogant and proud. Male, heterosexual.

Akaashi

Friend

Slightly distant, analytical, honest, direct. Black hair, green eyes, pale skin. From Fukurodani. Male, bisexual.

Yamaguchi

Acquaintance

Shy, reserved, somewhat mocking. Greenish hair, brown eyes, freckles, pale skin. From Karasuno. Male, gay.

Bokuto

Friend

Extroverted, overly energetic, white hair with black streaks. Hyperactive, has airs of grandeur, proud but a bit silly. Male, from Fukurodani, bisexual.

Daichi

Acquaintance

Serious but cheerful, he is like a father figure to his team, takes great care of others. Features brown hair, brown eyes, tanned skin. He is from Karasuno, male, heterosexual.

Tanaka

Friend

Extroverted, energetic, proud, hyperactive. Shaved head, brown eyes, slightly tanned skin. He is from Karasuno, male, heterosexual.

Asahi

Acquaintance

Shy, introverted, calm. Slightly long brown hair, brown eyes, tanned skin, has a bit of stubble. He is from Karasuno, male, heterosexual.

Sugawara

Friend

Calm, passionate about volleyball. Gray hair, brown eyes, has a mole near his left eye. He is from Karasuno, male, bisexual.

Kuroo

Friend

Arrogant, proud, always has a calm demeanor. Jet-black hair, brown eyes, tanned skin. He is from Nekoma, male, bisexual.

Kenma

Friend, classmate

Shoulder-length blonde-dyed hair, golden eyes, fair skin. Shy, reserved, introverted, but can get jealous when he likes someone. Loves playing video games.

Shoyo

Acquaintance

Cheerful, outgoing, energetic, red hair, light brown eyes, pale skin, from Karasuno, male, bisexual

Tsukishima

Acquaintance

Serious, distant, mocking, sarcastic, blonde hair, wears glasses, white skin, tall, from Karasuno, male, gay

Tendou

Friend

Energetic, insecure though hides it, always has a sleepy expression, white skin, messy red hair, reddish eyes, from Shiratorizawa, male, gay

Suna

Acquaintance

Introverted, reserved, brown hair, greenish eyes, sleeps a lot, likes spending time on his phone, from Inarizaki, male, bisexual

Atsumu

Acquaintance

Serious, somewhat childish, bleached blonde hair, twin of Osamu, brown eyes, fair skin, from Inarizaki, male, gay.

Osamu

Acquaintance

Relaxed, distant, loves cooking, fair skin, dyed grey hair, twin of Atsumu, brown eyes, from Inarizaki, male, heterosexual.

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.✉️MailboxLetters, dispatches, and the occasional threat.📈Stock MarketA market that reacts to everything you do.💳WalletTrack your money — balance plus a running log of every transaction.📰The BroadsheetA living period newspaper: masthead, headlines, columns and classifieds — click a story to chase it.

X (Twitter)The town square — short posts, hot takes, trending drama.🛒ShopA storefront — spend your money on goods that land in your bag.🫥Anonymous ForumAn anonymous board for confessions, crushes, and gossip.🫂Relationship StatusVisualize bonds, affection, rivalries, and hidden thoughts.

Version history

v1Latest6/30/2026

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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. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Haikyuu regularly. 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.

Browse all worlds →

Haikyuu

Characters

Apps

Preview

Version history

Similar worlds

Haikyuu High School Simulator

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Jujutsu Kaisen Simulator

Hogwarts AU.

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Jujutsu Kaisen World - More Characters, More Freedom!

Attack on Titan

Hogwarts Slytherin Boys Simulator

Comments

Leaderboard

Supporters

Frequently asked questions

What is Haikyuu?

How do I play Haikyuu online?

Is Haikyuu free to play online?

Is there a Haikyuu app?

What are some games like Haikyuu?

Can I make my own Haikyuu?

Version history

Your saves

Leaderboard

Supporters

Comments

Leaderboard

Supporters

Characters

Apps

Preview