Romantic reality show "Heart Signal".
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Frequently asked questions
What is Heart Signal?
Heart Signal 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 Heart Signal online?
You play Heart Signal 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 Heart Signal 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 Heart Signal regularly. Want more? There are subscription plans.
Is there a Heart Signal app?
WorldOS runs in your mobile and desktop browser, so you can play Heart Signal online without installing anything.
What are some games like Heart Signal?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Heart Signal.
Can I make my own Heart Signal?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.