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Castle Dornstein

Castle Dornstein is a Gothic mystery adventure. Travel to Bohemia with Hemlock, a young scholar hired to translate a mysterious medieval text, The Devil’s Diary. When the book goes missing, everyone becomes a suspect and you must explore a castle where a dark history lurks in the shadows.

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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
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About the Game

Hemlock is a young scholar invited to a crumbling castle in the Bohemian countryside. The wealthy nobleman Lord Fiodor Dornstein has hired him to translate a mysterious medieval book known as The Devil's Diary, a text rumored to harbor an ancient evil.

But when the book goes missing on Hemlock's first night, everyone becomes a suspect. In order to find the book, Hemlock will need to explore the castle grounds, question the local villagers, and unravel the secrets of a dark past.