Our Game Now Chapter 1: The Artifact
https://archiveofourown.org/works/40135344/chapters/100518390
Long ago, when the pyramids were still young, a pharaoh used a game of great and terrible power known as the Shadow Games, the only answer to protecting the innocent from the likes of true evil. When the Pharaoh sealed the magic away, the world was brought peace... or so they thought. Until a young boy named Yugi Mutou and his younger sister Natsuki were gifted the Millennium Puzzle by their father.
One night, the magic is unleashed anew on a modern world, as the darkness rises once more.., so does the spirit of the Pharaoh and the secrets of his past. Now, it's up to the siblings to fight the forces of darkness, joined by those around them... but can they win?