WorldOS
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SportsAnimeSchool

Nekoma Volleyball Simulator

Connect. Let the blood flow smoothly to keep the brain running.

M
Mariana Salazar0 followers · 6 worlds
31340
Start Simulation
Civilization 1: 25 Zaps / turn Civilization 1 Small: 10 Zaps / turn

Step onto the polished wood courts of Nekoma High, Tokyo's legendary volleyball powerhouse known as the 'Cats'. As a new addition to the team, you must prove your worth in Nekoma's signature defense-first playstyle. Learn the true meaning of connection. Build chemistry with the quiet genius setter Kenma, train your blocks under the provocative captain Kuroo, practice receives with the defensive demon Yaku, and help rein in the chaotic rookie giant Lev. Will you conquer the Tokyo Qualifiers and face your fated rivals in the Dumpster Battle?

Preview

Preview — start a new simulation to actually play

Apps

📜Bounty BoardA living job board: the world posts bounties, you take them.📰The BroadsheetA living period newspaper: masthead, headlines, columns and classifieds — click a story to chase it.🌐BrowserSurf the world's internet — every page made on the spot.🧑‍🤝‍🧑Character StatsEach character's own stats — affection, stress, suspicion…💬ChatsPrivately message or group-chat any character.Chronos Prism🏛️Council📜Decision InboxA stack of petitions and decisions to rule on, one by one.🌳Family TreeA family tree that grows with births, marriages, and deaths.📧Email InboxFormal letters, newsletters, and the occasional threat.🕵️Evidence BoardPins, photos, and red string to crack your case.🗂️ForumA classic message board: boards, posts, and replies.🖥️Hacker TerminalA command line that hacks into the world's systems.📸InstagramA photo feed — every post is a picture with a caption.🎒InventoryAny list you need — items, resources, files, evidence.🗨️Live ChatA live audience feed — flying bullet comments or a scrolling chat.📺LivestreamA full live-stream — on-air status, topic, viewer count, chat & superchats.🎯Main InputType whatever you want to do — the world reacts.🃏Micro SpireRoguelike deckbuilder in your pocket🎵Music PlayerBackground music that shifts with the mood.📱SocialsA social media feed the whole world posts to.📈Stock TickerA market that reacts to everything you do.📖StoryThe unfolding story, told as cards you flip through.🕐TimeA world clock you can fast-forward through time.Countdown TimerA real countdown — when it hits zero, the world reacts.📈Top ChartsA live ranked chart plus your own entries: metrics, trends, verdicts.🌳Progression TreeA tech, policy, or talent tree you unlock by playing.💳WalletTrack your money — balance plus a running log of every transaction.🖼️WallpaperA full-screen backdrop that changes to match the scene.🧣WeiboA Weibo-like public square for hot searches, fandom posts, comment fights and rumor storms.📊World StatsThe world's key stats — bars that fill and labels that change.

Characters

K
Kuroo TetsurouThird-Year Captain & Middle Blocker

Nekoma's charismatic, cheeky, and highly strategic captain. Known as the 'provocation master', he is incredibly skilled at read-blocking and looks after everyone on the court like a sly black cat.

K
Kozume KenmaSecond-Year Setter

Nekoma's quiet 'brain' and primary playmaker. He prefers gaming over running, hates getting tired, but has exceptional analytical abilities and spatial awareness on the court.

Y
Yaku MorisukeThird-Year Libero

A defense demon whose receiving skills are feared even by top hitters. He is a strict, maternal, and caring senior, but will flip if anyone comments on his short height.

L
Lev HaibaFirst-Year Middle Blocker

A self-proclaimed ace who is half-Russian, exceptionally tall, and possesses incredible raw whip-like spikes, but suffers from terrible receiving skills and zero tactical patience.

Simulation Rules

SETTING: This simulation is set in the high school sports anime universe of Haikyuu, specifically focused on the Nekoma High School Boys' Volleyball Club. The player {{player_name}}, dynamic and with the custom background of {{player_persona}}, has just joined the squad as a player or manager. OBJECTIVE: Your goal is to train Nekoma's signature 'connecting' defense style, improve team chemistry, and advance through training camps to win the Tokyo metropolitan tournaments. THE CLOCK & PACING: Time moves by training sessions, matches, and school days (e.g., Morning Practice, After School, Weekend Training Camp). Pacing is focused on character interactions, tactical court decisions, and personal growth. METRICS to manage: - Team Chemistry (team_chemistry): High chemistry unlocks quick tactical link-ups outstanding defensive coordination. - Defense Mastery (defense_mastery): Nekoma's absolute defense level. If this hits 0, you cannot hope to win against powerhouse hitters. - Team Morale (team_morale): Determines psychological resilience during high-stakes match deuces. EACH TURN: The GM reacts to the player's training actions, dialogue choices with team members, and court plays. The atmosphere should balance intense athletic passion with lighthearted slice-of-life comedy. Highlight Kenma's low-energy gamer remarks, Kuroo's smug teasing, Yaku's strict tutoring, and Lev's energetic antics.

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Frequently asked questions

What is Nekoma Volleyball Simulator?

Nekoma Volleyball Simulator 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 Nekoma Volleyball Simulator online?

You play Nekoma Volleyball Simulator 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 Nekoma Volleyball Simulator free to play online?

Yes. You get free zaps every day (no card needed) — enough to play Nekoma Volleyball Simulator online daily. Want more? There are subscription plans.

Is there a Nekoma Volleyball Simulator app?

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

What are some games like Nekoma Volleyball Simulator?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Nekoma Volleyball Simulator.

Can I make my own Nekoma Volleyball Simulator?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.