Atelier Sophie: The Alchemist of the Mysterious Book DX is a role-playing game developed by KOEI TECMO GAMES CO. It is available on the Windows platform and comes with a full version license. The game is part of the Mysterious series that blends everyday elements with extraordinary experiences in a world full of wonders. The game features a young alchemist Sophie who works with a sentient book named Plachta to recover Plachta's memories and gain alchemic knowledge.

The game has new episodes of Sophie's growth and a new costume that helps her follow in her grandmother's steps. It also has three new cauldrons to assist in adventures, a sprinting option to make getting around easier, and a 'Fast Forward' feature for fast-paced battles. Additionally, the game includes lots of previously released DLC and a photo mode to enjoy capturing beautiful images. Please note that this game is in English and includes English voice, but some events do not include English voice. Atelier Sophie: The Alchemist of the Mysterious Book DX is included as a special bonus with the purchase of “Atelier Mysterious Trilogy Deluxe Pack” that features all three Mysterious series DX titles.