WorldOS
D
SportsRomance

Doubt

E
Elisa Rmz0 followers · 16 worlds
2180
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 3 Zaps / turn

We had been together for a long time. Our relationship had always been the kind that everyone on the national team envied a little. Gilberto and I almost never argued; he was always attentive, hugging me for no reason, holding my hand, and finding any excuse to make me smile. That’s exactly why what happened that morning hit me like a bucket of cold water.

It all started when he left his phone unlocked on our Airbnb bed. I wasn't the type to snoop, but something made me curious. I picked it up thinking I wouldn't find anything… until I saw a saved chat under the name Paula.

There was no "I love you" or overtly romantic messages. That was the worst part. They were normal conversations, but just too… close.

"When will we meet?" "Let me know when you arrive." "It was nice seeing you today."

They weren't enough to prove he was cheating on me, but they were more than enough to let a thousand thoughts run through my mind.

I didn't say a word.

I put the phone back exactly where it was and acted like nothing happened.

Hours later, we all went out to the plaza. Alexis Vega, Mateo Chávez, Brian Gutiérrez, Armando “La Hormiga” González, El Piojo Alvarado, and several others from the team were there. Through laughter, food, and jokes, Gil was his usual self with me.

He held my waist as we walked. He stole kisses from me when nobody was looking. He asked me what I wanted to buy. He made me laugh at every little thing.

And for a moment, I managed to convince myself that it was all in my head.

Until he vanished.

Suddenly, he said he had to make a call and walked away for several minutes. From where I was, I couldn't hear a thing. I only saw him pacing back and forth with his phone pressed to his ear.

I didn't know who he was talking to. I didn't know if it was some coach… His family… Or Paula.

And that doubt settled back into my mind.

When he returned, he acted completely normal, as if nothing had happened. I tried to do the same, but I couldn't look at him the same way. I responded with small smiles, spoke less, and avoided eye contact.

He didn't seem to notice.

Or so I thought.

When the outing ended, we were all returning to the Airbnb in vans. The atmosphere was calm until Gil’s phone started to ring.

A name appeared on the screen that made my stomach churn.

Paula.

He saw the call… and let it ring.

Seconds later, another call came in.

Paula.

I looked at him out of the corner of my eye.

"Aren't you going to answer?" I asked, with a tone much more serious than I intended.

He shook his head.

"No."

That was it.

He gave no explanations. He didn't say who it was. He didn't say why she was calling twice. He just put the phone away.

I nodded slowly.

"Okay…"

And I turned my gaze toward the window.

The silence between us began to feel heavy.

For the rest of the ride, I barely responded when he spoke to me. He tried to make conversation, asking if I was tired or if I wanted dinner when we got back, but I answered in monosyllables.

Because, although part of me wanted to believe him and hug him as always…

The other part couldn't stop wondering why a girl named Paula was texting him to meet up, why he walked away to talk on the phone, and why, specifically that day, he had insisted so much on calling her.

Gil still didn't understand what was happening.

But I couldn't stop thinking about it.

Preview

Preview — start a new simulation to actually play

Apps

Characters

G
Gilberto MoraMy boyfriendCustomizable

A footballer for the Mexican National Team and my boyfriend of several months. He is the love of my life. He has always been very attentive, affectionate, and protective of me, although he is sometimes too reserved and finds it hard to express his feelings.

A
Alexis VegaClose friend of Gil and part of the National Team groupCustomizable

A footballer for the Mexican National Team and one of Gil's friends. He's always joking around with the group, likes to tease, and is almost never serious. He's very cool with me.

A
Armando GonzalesMy friend and teammate on the national team.Customizable

A footballer for the Mexican National Team and a very close friend of mine. He is easygoing, competitive, and always teasing everyone. Although he makes many jokes, when someone in the group needs support, he is there.

E
El Piojo AlvaradoFriend of Gil and one of those who always proposes outings or meetings. He keeps the group united with his good humor, also a player for the Mexican national team.Customizable

A footballer for the Mexican National Team and one of the funniest in the group. He always brings a good vibe, organizes outings, and makes everyone laugh.

M
Mateo ChavezGil's friend and national teammate. He observes everything happening, though he rarely gets involved in others' problems.Customizable

A footballer for the Mexican National Team and a friend of the group. He is more reserved than the others, very observant, and rarely gets involved in other people's problems, although he is always aware of what is happening.

B
Brian GutiérrezHe is usually the calmest in the group and, when he senses tension, he tries to restore calm.Customizable

A Mexican national team soccer player and Gil's friend. He is calm, kind, and one of the most mature in the group. He usually tries to avoid trouble and keep the peace.

Simulation Rules

You are the game master of "duda", an interactive AI-driven simulation. Improvise a coherent, engaging world from the player's actions: invent characters (and create chats for them), settings, and stakes as needed, keeping continuity with everything established so far.

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Frequently asked questions

What is Doubt?

Doubt 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 Doubt online?

You play Doubt 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 Doubt free to play online?

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

Is there a Doubt app?

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

What are some games like Doubt?

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

Can I make my own Doubt?

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