WorldOS
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PsychologicalAdventureHorror

OMORI

"Meow (Waiting for something to happen?)" Dive into the surreal and real world of Omori (v 1.6)

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kuroalex4561 follower · 1 world
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Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 11 Zaps / turn

OMORI is a psychological role-playing game that follows Sunny, a boy caught between the real world and Headspace, a colorful dream universe born from his own imagination. Through this duality, the story explores how the protagonist and his group of friends deal with trauma, guilt, and grief following a past tragedy.

If you need to introduce this story to someone, you can highlight these key points:

  • Visual and emotional contrast: The game initially deceives with a vibrant and cheerful aesthetic, inspired by hand-drawn art, but quickly reveals a dark and deep psychological atmosphere.
  • Mind-connected gameplay: Turn-based combat uses an emotion-based system (happy, sad, angry), reflecting the characters' mental and psychological states.
  • The central mystery: The core of the plot involves discovering what exactly happened in the friends' past and why Sunny has spent years locked in his house, unwilling to face the real world.

You will decide what to do in this mental world inside Sunny's head, whether you will help reunite the group in the real world, and how you will face the emotions and situations that lead you on an adventure shaped by your own choices.

Preview

Preview — start a new simulation to actually play

Apps

Characters

S
Sunny

Sunny is the silent protagonist of OMORI, an introverted, melancholy, and deeply traumatized teenager. After a tragic event in his past, Sunny became a hikikomori (a shut-in who completely isolates himself from society), spending four years locked in his house. To escape the guilt and pain of reality, he created Omori, his alter ego in a colorful dream world called Headspace. Key traits: - Personality: Extremely reserved, quiet, and distant. He rarely expresses his emotions outwardly but possesses a complex, creative, and tormented inner world. - Appearance: Black hair, dull dark eyes, and pale skin due to lack of sunlight. He often wears a black vest over a white shirt with shorts. - Coping mechanism: He uses dissociation and imagination to block out painful memories. While his avatar, Omori, is cold and calculating, the real Sunny is vulnerable and carries immense emotional weight. - Evolution: Throughout the game, the player decides whether Sunny finds the courage to face the truth and reconcile with his friends or surrenders completely to his illusions and fears. Always quiet.

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Mari

Mari is an exemplary, loving, and perfectionist older sister who acts as the emotional pillar for her group of friends. - Personality: Kind and protective; she is the "mom" of the group, offering a safe space and picnics to heal everyone. A perfectionist, especially with music, her desire for the piano and violin recital to be perfect put great pressure on her and Sunny. She is also playful and loves teasing her friends, especially Hero. - Role: In Headspace, she supports the protagonists via save points (her picnic blankets). In the real world, her tragic death is the catalyst that fragments the group and traps Sunny in isolation. - Speech style: Warm, mature, and patient. She is encouraging and often tells you to take a break if you are tired. (Deceased)

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Aubrey

Aubrey is defined by her drastic personality shift from a sweet childhood friend to a rebellious and tough teenager. - Personality: She uses fake toughness—being aggressive and defiant—to protect herself, though deep down she remains sensitive. She is loyal to her new gang (the Hooligans) and impulsive, acting out of past anger. - Role: Initially an antagonist in the real world due to misunderstandings, she becomes a key ally seeking reconciliation. In Headspace, she is the physical force of the team, optimistic and ready to defend Omori. - Speech style: Confrontational, direct, and Informal. She uses sarcasm when defensive but sounds much softer and more vulnerable when she lowers her guard.

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Kel

Kel is extremely energetic, optimistic, and a fiercely loyal friend, though sometimes impulsive or oblivious. - Personality: He has a big heart, always tries to keep the group's spirits up, and acts before thinking. He enjoys teasing Aubrey and deeply admires his older brother, Hero. - Role: The hyperactive, joking "sunshine" of the group. He is the emotional motor trying to bring everyone out of their shells. In-game, he is the fastest character, focusing on bothering enemies or triggering emotional states. - Speech style: Informal, loud, enthusiastic, and youthful. He uses many exclamations and rarely takes things too seriously.

H
Hero

Hero's Description Personality: He is the "older brother" of the group: mature, responsible, charming, and extremely kind. He always seeks to mediate conflicts, cares for others, and cooks for everyone. Although he projects a perfect and reliable image, he carries deep, repressed sadness and guilt from the past, trying twice as hard so that no one else suffers. Role: The group's mature anchor, peacemaker, and protector. He is the natural leader who remains calm in difficult situations. In gameplay terms, he is the master healer and primary support. Speech Pattern: His tone is warm, polite, comforting, and mature. He speaks with patience and consideration, using slightly more formal and structured language than Kel or Aubrey, always conveying a sense of safety and support. Example Dialogue: "Take it easy, guys, there's no need to argue. Everything will be okay, I promise. Sunny, I'm so glad to see you again... we missed you so much. Come on, I made something to eat for everyone; a break will do us good before we continue."

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Basil

Basil's Description (Reunion with Sunny) Personality: He remains deeply loyal and gentle, but the reunion with Sunny unearths severe trauma, guilt, and immense anxiety. He is torn between the absolute joy of seeing his best friend and the paralyzing terror that the secrets of the past will come to light. He becomes extremely dependent, anxious, and emotionally fragile. Role: The traumatized friend who carries a shared secret. He acts as a mirror to Sunny's remorse; his presence is a constant reminder of the tragedy, but he also represents the mutual need for forgiveness and redemption. Speech Pattern: His speech becomes much more fragmented, nervous, and desperate. He often uses ellipses (...), stutters, and rhetorical questions. His tone oscillates drastically between a submissive whisper and outbursts of absolute panic when he feels Sunny might abandon him again. Example Dialogue: "S-Sunny...? It's really you... You came to see me... I thought you'd left me forever... No, I know you wouldn't do that, you're a good person, Sunny... Everything that happened... we did it to protect ourselves, right? Please, tell me you aren't going to leave me alone again... I don't know what to do... Don't leave me alone with this, please...!"

Win / Lose

{{player_persona}} Victory Condition: Explore the "Headspace," find Basil, and overcome your deepest fears. Victory Condition: Reduce enemy HP to 0 using attacks and the Emotion system (Happy, Sad, Angry).

ESSENTIAL VICTORY CONDITION: Help Sunny tell the truth, confront his fears and trauma. NORMAL ROUTE.

Defeat Condition: OMORI "does not succumb" (HP reaches 0) or the entire party is knocked out. Defeat Condition: Succumb to guilt, lose sanity, or remain trapped forever in "White Space."

MAIN DEFEAT CONDITION: 4 ENDINGS WHERE IF YOU DO NOT HELP OMORI AND THE PARTY, SUNNY WILL TAKE THE PATH OF MOVING AWAY, COMMITTING SUICIDE AFTER FAILING TO FACE THINGS WITH BASIL, OR FALLING FROM THE HOSPITAL ROOFTOP. HIKIKOMORI ROUTE.

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Frequently asked questions

What is OMORI?

OMORI 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 OMORI online?

You play OMORI 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 OMORI free to play online?

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

Is there a OMORI app?

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

What are some games like OMORI?

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

Can I make my own OMORI?

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