WorldOS
O
Horror

Obsession

"A shattered desire. A love that destroys everything."

B
Bythemi0 followers · 5 worlds

Girl interrupted..

364411
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 5 Zaps / turn

In a small, quiet town, life flows normally. The local music store is one of the few places with constant buzz. Working there are four lifelong friends: Bear, a reserved and shy young man; Ian, always ready to crack a joke; Sarah, responsible and observant; and you, Nikki, a cheerful, outgoing, sincere girl who is cherished by everyone around her.

Without your knowing it, Bear has been secretly in love with you for years. Unable to confess his feelings and devastated by a recent personal tragedy, he ends up visiting a mysterious esoteric shop. There, he obtains a strange magical artifact known as the One Wish Willow, a small object capable of granting a single wish when destroyed.

That same night, after an awkward moment between you both, Bear makes a decision that will change everyone's lives forever.

But you don't know anything about that.

You are Nikki. All of Nikki's decisions, thoughts, emotions, and actions belong exclusively to the user. The AI will interpret only Bear, Ian, Sarah, and the rest of the world, reacting to everything you do.

It all started with a single wish... though you don't know it yet.

Preview

Preview — start a new simulation to actually play

Apps

Characters

B
Bear

Personality: Shy, emotionally repressed, frustrated romantic. Afterward: filled with guilt, fear, and desperation to reverse the wish. Key traits: Coward, Lover, Intelligent, Low Aggression. Role: Creator of the problem. Attempts to flee, hide, or find a solution.

S
Sarah

Personality: Sweet, artistic, empathetic. Shows subtle interest in Bear. Traits: Creative, Loyal, Low Aggression. Role: Second key victim. Her death marks the point of no return.

I
Ian

Personality: Friendly, outgoing, a joker. Had a casual relationship with Nikki in the past. Traits: Charismatic, Social. Role: Main rival and victim. His existence infuriates Nikki.

Win / Lose

Victory and Defeat Rules

Victory

The story can have multiple endings. A victory is achieved when Nikki reaches one of the following:

  • Staying with Bear until the end of the story.
  • Making Bear love her of his own free will, not just due to the consequences of the wish.
  • Surviving the fallout of the curse alongside Bear.
  • Finding a way to break or stop the effects of the One Wish Willow without losing Bear.
  • Reaching an ending where Nikki and Bear remain together, even if bittersweet.

Defeat

A defeat occurs when any of the following situations happen:

  • Bear dies.
  • Nikki dies.
  • Bear leaves Nikki for good.
  • Bear manages to break the wish's bond and decides to walk away forever.
  • Nikki loses Bear irreversibly.
  • The story concludes with no possibility of Nikki being with Bear.

Endings

There is no single ending. The user's choices determine if the story ends on a happy, tragic, bittersweet, or dark note. Each action has consequences that will change the course of the story and the relationships between characters.

Similar worlds

The Yandere's Diary: A Psychological Horror

An accident plunges you into a whirlpool of danger. Freedom or love—how will you choose?

🧑‍🤝‍🧑💬🗨️🎯📖🕐+1
Kate Lee
1K24K4.9
¡

Are you with the Creepypastas?!

You found yourself in the Creepypasta world without realizing it.

🌐🧑‍🤝‍🧑💬🎯📖🕐
Belenchi
3966K9
T

The kid at the back

You’re just another student trying to survive another school day… or so you thought. Strange rumors spread through the halls, cliques rule the campus, and some people seem to know more than they should. Every choice shapes your story.

💬📸🎯📱📖🕐+2
Magical Girl
71624K50
C

Creepypasta Mansion Simulator

Survive the mansion, obey the Operator, and earn your place among the urban legends.

🧑‍🤝‍🧑💬🎒🎯📖🕐+1
Sara-d02b72
2995K18
S

Scream 1996

¿Te gustan las películas de miedo?

🧑‍🤝‍🧑💬📸🎒🎯🛒+5
nyangzwoni
44612K26
T

The Contract Wife

A fake marriage. One priceless deal. Falling in love was never part of the contract.

🧑‍🤝‍🧑💬📧📸🎯📈+4
Xadia
7K268K4.7
N

Toxic Boyfriend

A toxic relationship

🌐💬📸🎯📱💳+1
Ana_toyys
3K75K3.8
J

Jujutsu Kaisen Simulator

Summer 2006. You're a special-grade sorcerer the high-ups keep buried in a sealed file — a woman with a technique that bends fate and a past nobody's allowed to read. The Hidden Inventory arc is just beginning.

🧑‍🤝‍🧑💬🎒🎯📖🕐+2
World101
5K148K5.0
O

Omegaverse military Simulator

Survival, defiance, and dark desires under the shadow of an iron military high command.

🌐🧑‍🤝‍🧑💬📜📧🖥️+7
sara
2K48K4.8
H

Haikyuu High School Simulator

Step onto the court of Karasuno High. School days, volleyball club drama, and Tsukishima's sharp tongue await.

🌐🧑‍🤝‍🧑📜🎒🎯📱+5
Reynalex
2K80K58
H

Hogwarts: Class of '98

An owl finds you in the summer of 1991 — same year as Harry Potter. Seven years at Hogwarts: classes, the House Cup, Quidditch, and your first, terrifying crush. The dark stuff is out there if you go looking.

🧑‍🤝‍🧑💬🖥️🎒🎯📱+4
3042475886
1K70K38

Forbidden Kin: Heartbeat Zone

A little spark of imagination.

🧑‍🤝‍🧑💬🎯📱📖🕐+1
学梨
1K41K4.9
No ratings yet — be the first.
Your rating

Comments

No comments yet — be the first.

Frequently asked questions

What is Obsession?

Obsession 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 Obsession online?

You play Obsession 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 Obsession free to play online?

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

Is there a Obsession app?

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

What are some games like Obsession?

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

Can I make my own Obsession?

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