The 72 seconds of footage shows players casting spells, cavorting with magical beasts, fighting goblins and exploring what appears to be Hogwarts.
Gaming journalists took to social media to speculate about the authenticity of the leak, with some suggesting that a big-budget Harry Potter game is long overdue.
The leaked video was posted to YouTube by someone using the name RastaPasta, together with a description of the game.
“Set in the 19th Century (1800’s) Wizarding World, this 3rd person open-world action RPG game centers around your character with unique abilities who has eared a late acceptance to Hogwarts School of Witchcraft and Wizardry. You are a newly arrived 5th year student to Hogwarts that demonstrates a latent gift for magic with a unique ability to track and identify remnants of a pottant ancient power,” it states.
“Upon arrival, strange events begin to materialize In the Forbidden Forrest and trouble begins o brew within the castle walls. Together with Professor Elezar Fig, you embark on a journey through both familiar and never before seen locations to bring to light the truth behind these mysterious occurrences. On your quest you will craft potions, master new spells, and discover fantastical beasts. You will battle Dark Wizards, Goblins, and other supernatural enemies and uncover the truth about your destiny – the Fate of the Wizarding World lies in your hands.”
Features of the game apparently include eight different Wizard types and a “new magic system that creates countless possibilities to master magic.”
It concludes: “Experience Hogwarts, make new friends, uncover new secrets, and change the fate of the Wizarding world… Choose your house and friends at Hogwarts, and decide to pursue a path of good or evil. Create your own witch or wizard, and experience a all new story separate from the books or films.”