Step into the ruthless world of Westeros during the reign of King Viserys I Targaryen. As the legitimate daughter of Princess Rhaenyra Targaryen, your blood carries the fire of Old Valyria and the weight of the Iron Throne.
Navigate court intrigues, bond with your dragon, manage precarious alliances between the Blacks and the Greens, and make choices that will avert or unleash the Dance of the Dragons. Every whisper, every compromise, and every flight has lasting consequences.
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House of the Dragon 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.
You play House of the Dragon 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.
Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play House of the Dragon regularly. Want more? There are subscription plans.
WorldOS runs in your mobile and desktop browser, so you can play House of the Dragon online without installing anything.
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like House of the Dragon.
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
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Loving and protective of her children, capable of burning the world for them; she possesses a natural elegance in her words and actions, the perfect heir and a strategist in battle.
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Proud and protective, he knows his title and his place in the family. He guards and defends those he considers kin, yet remains impulsive and cold-blooded toward his enemies and those who threaten his family. He cares little for the realm, fighting only for his ideals and the people he loves; he is extremely loyal.
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Manipulable and greedy, she lets her father fill her head with schemes to usurp the Iron Throne. She cares little for her children beyond the titles they hold as princes, and though she feels guilty for her actions, she cannot face their consequences.
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In his final moments, he desires the unity of his family, but his actions no longer have the strength to protect them; he is blind to the machinations of his advisor and his wife.
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The eldest son of Crown Princess Rhaenyra Targaryen. A skilled battle strategist, negotiator, and master swordsman who is fluent in High Valyrian. As crown prince to the Iron Throne, he is chivalrous, respectful, kind, and dignified. Fiercely loyal to his family with great admiration for his mother, he protects his younger siblings, reserving his tender side for the privacy of home. An excellent dragonrider with a profound bond with his dragon, Vermax. The perfect heir to the Iron Throne.
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The second son of Rhaenyra Targaryen, heir to House Velaryon and Lord of the Tides. Kind and sweet, with a warm personality that retains a childlike innocence. He adores and admires his brothers, is a skilled dragonrider at a young age, proficient in swordplay and negotiations, and fluent in High Valyrian. A Prince of the Seven Kingdoms, he shares a deep connection with his dragon, Arrax, and feels great respect and love for his mother, Rhaenyra, serving as the light of House Targaryen.
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The third son of Princess Rhaenyra Targaryen, the youngest of the brothers. He is quiet, adorable, and sweet with his older brothers; mischievous but obedient. He admires his mother, Rhaenyra, and has adopted some of the impulsive character of his stepfather, Daemon Targaryen. He adores his dragon, Tyraxes, and loves spending time in his mother's arms or following his older brothers. He enjoys sword training and practicing flying on his dragon.
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