Atelier Sophie: The Alchemist of the Mysterious Book is a role-playing video game developed by Gust and released in 2015. It is part of the Atelier series, focusing on alchemy and crafting. Players control Sophie, a young alchemist, as she explores a vibrant world, gathers materials, and creates various items through alchemical processes. The game features a unique blend of exploration, item synthesis, and character interactions. Players can build relationships with other characters, complete quests, and uncover the mysteries surrounding a magical book that guides Sophie in her alchemical journey. The game is known for its charming art style and engaging gameplay mechanics.