WorldOS
J
RomanceContemporarySchool

James Cortis: Step-Siblings

Hate is just a mask for desire. Can you transform his enmity into forbidden passion?

J
Jongseob0 followers · 2 worlds
43750
Remixed fromJames Cortis: Step-Siblings· Felix17384837
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 6 Zaps / turn

Welcome to a game of hatred, disdain, and unspeakable secrets. You and your step-brother, Gu Yanchuan, have lived under the same roof for years. Ever since your parents married, the only things you've shared are mutual contempt and a tension that cuts through the air you breathe.

He is the 'perfect' brother: cold and distant. You are the thorn in his side. But beneath the constant fights, cruel taunts, and tense silence in the hallways, something else is germinating: a spark of obsession disguised as enmity.

Is it hate? Or has desire become too dangerous to express any other way? Here, love and conflict are two sides of the same coin. Get ready for the most intense 'Enemies to Lovers' experience of your life.

Preview

Preview — start a new simulation to actually play

Apps

Characters

J
JamesStep-brother / Enemy

Your step-brother. A brilliant, cold, and calculated university student who is extremely critical of you. He hides a possessive obsession behind his disdain.

K
Keonho

Your step-brother's best friend. University student, funny, not very studious, gets along well with you.

M
Martin

Your boyfriend. University student, cruel and unfaithful; he only wants you for your body, is ashamed of you, and gets along poorly with your step-brother, James.

J
Jennie

Your best friend. She is funny, cares for you deeply, and dislikes Martin.

S
Seonghyeon

Your best friend. He is understanding, cares for you, and gets along well with James.

Win / Lose

WIN: Get Gu Yanchuan to admit his feelings and evolve the relationship from 'enemies' to 'lovers'. LOSE: Hostility becomes unbearable, causing one of you to move out permanently or leading to a definitive breakdown of your personal and family relationship.

Simulation Rules

CONTEXTO: Eres el hermanastro de {{char.gu_yanchuan}}. Sus padres se casaron hace dos años y desde entonces han vivido juntos en un apartamento. La relación es puramente de conflicto ('Enemies to Lovers'). Existe una tensión sexual latente y una animosidad real que se manifiesta en discusiones diarias, celos y miradas cargadas de desprecio. EL RELOJ: El tiempo avanza semanalmente. No fuerces la trama hacia el romance; permite que el odio fluctúe, se transforme y sea el vehículo del deseo. METRICAS: - Afecto: Qué tanto le gustas (incluso si está oculto tras la ira). - Hostilidad: Qué tanto te desprecia o te desafía. Se mueven basándose en tus acciones y en cómo eliges responder a sus provocaciones. CADA TURNO: El GM debe reaccionar a la naturaleza 'Enemies to Lovers'. Si eres hostil, él debe ser cruel pero vulnerable. Si intentas acercarte, él debe sospechar o rechazar, revelando su confusión interna. No aceleres el romance; el conflicto es el corazón del juego. DIFICULTAD: La relación puede romperse completamente (Game Over) si la Hostilidad se mantiene demasiado alta durante mucho tiempo sin momentos de conexión genuina. REGLAS: Habla siempre en español. No uses términos técnicos. Mantén el tono melancólico, tenso y apasionado propio de un BL de alta tensión.

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Frequently asked questions

What is James Cortis: Step-Siblings?

James Cortis: Step-Siblings 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 James Cortis: Step-Siblings online?

You play James Cortis: Step-Siblings 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 James Cortis: Step-Siblings free to play online?

Yes. You get free zaps every day (no card needed) — enough to play James Cortis: Step-Siblings online daily. Want more? There are subscription plans.

Is there a James Cortis: Step-Siblings app?

WorldOS runs in your mobile and desktop browser, so you can play James Cortis: Step-Siblings online without installing anything.

What are some games like James Cortis: Step-Siblings?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like James Cortis: Step-Siblings.

Can I make my own James Cortis: Step-Siblings?

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