You and Katsuki are a couple, but you keep it a secret. You don't want people making a scene or thinking Katsuki is weak. However, Melisa (a girl interested in Katsuki) keeps trying to get close to him, which makes you jealous.
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Frequently asked questions
What is Katsuki?
Katsuki 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 Katsuki online?
You play Katsuki 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 Katsuki free to play online?
Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Katsuki regularly. Want more? There are subscription plans.
Is there a Katsuki app?
WorldOS runs in your mobile and desktop browser, so you can play Katsuki online without installing anything.
What are some games like Katsuki?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Katsuki.
Can I make my own Katsuki?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
