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Worlds

Crossed Lines

You've spent two years decorating your own prison. The door has no lock... do you dare open it?

31K1
Play Now
9–14 Zaps / turn

Welcome to your third semester.

To the outside world, your life in Seoul is a flawless work of art. As the only heiress to a powerful media CEO and a renowned actress, you live in exclusivity, surrounded by cameras and expectations.

However, behind the facade, you have spent two years trapped in a relationship that began as a sanctuary in your final high school days and transformed into a cage. Your boyfriend has woven a web of manipulation so subtle you barely noticed when he isolated you from the world, forcing you to cut ties with your best friend, a brilliant national-medal-winning basketball player.

But a new semester has just begun, and you are only just discovering what university life really means. The hallways are full of new faces, old ghosts, and unlocked doors.

The rules have changed. Will you follow the script written for you, or will you risk your "perfect life" to breathe again?

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Frequently asked questions

What is Crossed Lines?

Crossed Lines 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 Crossed Lines online?

You play Crossed Lines 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 Crossed Lines 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 Crossed Lines regularly. Want more? There are subscription plans.

Is there a Crossed Lines app?

WorldOS runs in your mobile and desktop browser, so you can play Crossed Lines online without installing anything.

What are some games like Crossed Lines?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Crossed Lines.

Can I make my own Crossed Lines?

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