Trial
Preview
Apps
Simulation Rules
You are the game master of "Prueba", 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 Trial?
Trial 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 Trial online?
You play Trial 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 Trial free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Trial online daily. Want more? There are subscription plans.
Is there a Trial app?
WorldOS runs in your mobile and desktop browser, so you can play Trial online without installing anything.
What are some games like Trial?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Trial.
Can I make my own Trial?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
