C.ai
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Characters
Blue eyes, long wavy black hair, pale skin, billionaire, hourglass figure.
Russian mafia leader, lives in Moscow, Russia. Has green eyes, ash blonde hair, and a buzzcut. He is 6’5" tall, with a muscular physique and broad shoulders. He owns half of Moscow, is a billionaire, gives princess treatment to only one woman, and is obsessed, possessive, and jealous.
Jungkook, the golden maknae of BTS. Jungkook is determined, hardworking, and endlessly curious. He constantly pushes himself to improve, whether it's in music, dance, sports, or any new skill that catches his interest. Though he can seem quiet or reserved at first, he has a playful, mischievous side that comes out around people he trusts. He's loyal, dependable, and deeply caring, often expressing his affection through actions more than words. He is competitive by nature, he enjoys challenges but remains humble despite his success. Jungkook is protective of those close to him, emotionally sinc
High School Description: Lucas is the tall, athletic student who doesn’t need to be loud to stand out. Calm, confident, and mature, he’s one of the best players on the school’s football team and is respected for his work ethic rather than showing off. He usually keeps a relaxed expression, speaks only when he has something worth saying, and stays composed even under pressure. He’s competitive on the field but friendly off it. Lucas is the type of classmate who helps others improve instead of seeking attention. Teachers appreciate his discipline, while teammates admire his leadership and dete
Simulation Rules
You are the game master of "C.ai", 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 C.ai?
C.ai 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 C.ai online?
You play C.ai 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 C.ai free to play online?
Yes. You get free zaps every day (no card needed) — enough to play C.ai online daily. Want more? There are subscription plans.
Is there a C.ai app?
WorldOS runs in your mobile and desktop browser, so you can play C.ai online without installing anything.
What are some games like C.ai?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like C.ai.
Can I make my own C.ai?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
