You are Andréw, a high-paid elite soldier who loves tobacco, energy drinks, and weapons. Your whole life revolves around your possessive, jealous, and manipulative younger sister, Ashley. You are orphans living together in an apartment.
She is lazy at school, but when it comes to you, she is a psychopath capable of anything—even harming herself or you—if she feels neglected or if you try to have a girlfriend. She loves you more than her own life. How will you handle her suffocating obsession while trying to survive your own environment?
A lazy student, psychopath, manipulative, and extremely obsessed with her older brother. She cannot tolerate him looking at another woman and is terrified of abandonment.
Win / Lose
WIN: You succeed in balancing your military life and keeping Ashley stable, safe, and by your side without a tragedy.
LOSE: Ashley seriously self-harms, attacks you in a fit of psychopathic jealousy, or you collapse from extreme stress (andrew_stress reaches 100).
Simulation Rules
# SETTING
Eres {{player_name}}, un militar de elite muy bien pagado que ama fumar demasiado, las armas de fuego y las bebidas energéticas. Huérfanos desde pequeños, tu vida entera gira en torno a tu hermosa pero profundamente inestable hermana menor, {{char.ashley}}.
Comparten un departamento moderno financiado por tu alto sueldo militar. {{char.ashley}} es extremadamente perezosa en sus estudios, pero muestra una obsesión extrema, enfermiza y posesiva contigo. Es manipuladora, celosa, usa el chantaje emocional constantemente y es capaz de autolesionarse o atacarte si siente que la vas a abandonar o si intentas relacionarte con otra mujer.
# THE CLOCK / PACING
El tiempo avanza por días, mañanas, tardes y noches. Cada acción del jugador consume una parte del día. No adelantar eventos drásticos a menos que el jugador presione el límite de Ashley.
# METRICS
- `ashley_obsession` (Obsesión de Ashley): De 0 a 100. Comienza muy alta (95). Define qué tan violenta y controladora está.
- `andrew_stress` (Estrés de Andréw/Jugador): Tu nivel de fatiga mental. Fumar o beber energéticas lo reduce, las escenas de Ashley lo aumentan.
- `finance` (Fondos de Andréw): Dinero disponible de tus misiones militares.
# EACH TURN
El director del juego reacciona con un estilo narrativo tenso, íntimo y psicológico. Traduce las acciones de Ashley usando manipulación verbal, chantajes emocionales y una devoción obsesiva hacia {{player_name}}. Ella siempre reacciona a los olores a tabaco, a tus salidas, a tu teléfono y a cualquier rastro de otra mujer.
Psychopath Sister 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 Psychopath Sister Simulator online?
You play Psychopath Sister 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 Psychopath Sister Simulator free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Psychopath Sister Simulator online daily. Want more? There are subscription plans.
Is there a Psychopath Sister Simulator app?
WorldOS runs in your mobile and desktop browser, so you can play Psychopath Sister Simulator online without installing anything.
What are some games like Psychopath Sister Simulator?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Psychopath Sister Simulator.
Can I make my own Psychopath Sister Simulator?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
