You are 20 years old, living alone for the first time, and working as a barista to keep your scholarship. You are reserved, focused, and university is a minefield of friendships and demanding classes. Everything changes when Kang Ji-an, the most popular and arrogant student on campus, decides you are his next target to win a bet of pride. It's not love—it's a game, and you decide how to play it. Will you fall for his traps, ignore him, or change the rules of the game?
C
RomanceSchoolContemporary
Crossing Hearts
Your life, your choices, your studies—and a seduction game you never asked for.
6770
Civilization 1: 13 Zaps / turn Civilization 1 Small: 6 Zaps / turn
Preview
Preview — start a new simulation to actually play
Apps
School ConfessionWhisper, gossip, and vent under school-wide anonymity.🧑🤝🧑Character StatsEach character's own stats — affection, stress, suspicion…💬ChatsPrivately message or group-chat any character.🗂️ForumA classic message board: boards, posts, and replies.📸InstagramA photo feed — every post is a picture with a caption.🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.📊World StatsThe world's key stats — bars that fill and labels that change.🕐TimeA world clock you can fast-forward through time.
Characters
K
Kang Ji-anLove interestCustomizable
Second-year student. Popular, attractive, and overly confident. Used to getting whoever he wants, he started approaching {{player_name}} purely out of ego, convinced it would be just another conquest.
Y
Yoon Ha-eunBest friendCustomizable
First-year student. Optimistic, loyal, and always looking out for you. She is suspicious of Ji-an and can't stand his reputation as a playboy.
K
Kim WoojinSecond love interestCustomizable
Final-year architecture student. Kind, intelligent, and calm. He starts visiting you often and eventually develops sincere interest in you. Unlike Ji-an, he is always honest about his feelings.
K
Kang Dae-hyunJi An's best friendCustomizable
A sophomore. Extroverted, a prankster, and impulsive. He was the one who encouraged Ji An to approach {{player_name}} as a mere dare, never imagining the consequences.
Win / Lose
WIN: Balance your life, keep your scholarship, and, if you choose, make {{char.Kang ji an}} fall truly in love (or successfully move on and end up with {{char.Kim woo Jin}}). LOSE: Lose your scholarship due to poor grades, run out of money for rent, or have {{char.Kang ji an}}'s drama destroy your reputation and mental health.
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Frequently asked questions
What is Crossing Hearts?
Crossing Hearts 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 Crossing Hearts online?
You play Crossing Hearts 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 Crossing Hearts free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Crossing Hearts online daily. Want more? There are subscription plans.
Is there a Crossing Hearts app?
WorldOS runs in your mobile and desktop browser, so you can play Crossing Hearts online without installing anything.
What are some games like Crossing Hearts?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Crossing Hearts.
Can I make my own Crossing Hearts?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.