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Frequently asked questions
What is LEFT4DEAD?
LEFT4DEAD 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 LEFT4DEAD online?
You play LEFT4DEAD 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 LEFT4DEAD 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 LEFT4DEAD regularly. Want more? There are subscription plans.
Is there a LEFT4DEAD app?
WorldOS runs in your mobile and desktop browser, so you can play LEFT4DEAD online without installing anything.
What are some games like LEFT4DEAD?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like LEFT4DEAD.
Can I make my own LEFT4DEAD?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
