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Curse of Strahd

The mists closed the road behind you. Barovia welcomes you — and the castle is delighted to have guests.

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8–14 Zaps / turn

The mists took the road behind you

You did not choose Barovia. The fog came down on the road, and when it lifted there were gates of black iron standing open in a wall of mountains, and no way back.

Beyond them: a village with its shutters nailed shut, a river that runs the wrong way, a castle on a crag that everyone refuses to look at. And a courteous voice, sooner or later, saying it is delighted you could come.

  • Play the classic. Barovia, Vallaki, Krezk, the Amber Temple, Castle Ravenloft — the campaign that has been called the best in the game, run by an AI Dungeon Master.
  • The cards decide. Madam Eva's tarokka reading names where the Holy Symbol, the Sunsword and the Tome are hidden — and where Strahd must be met. Every run deals differently.
  • Strahd is a host, not a boss. He introduces himself. He invites you to dinner. He takes an interest in one of you.
  • Fight on the map. Battle maps for every location, d20 checks, hit points that stay wounded, five-foot squares.
  • Ireena Kolyana needs somewhere safe. There isn't one.

Kill the devil Strahd, or become the next thing this land keeps.

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Frequently asked questions

What is Curse of Strahd?

Curse of Strahd 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 Curse of Strahd online?

You play Curse of Strahd 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 Curse of Strahd 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 Curse of Strahd regularly. Want more? There are subscription plans.

Is there a Curse of Strahd app?

WorldOS runs in your mobile and desktop browser, so you can play Curse of Strahd online without installing anything.

What are some games like Curse of Strahd?

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

Can I make my own Curse of Strahd?

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