Tristia Legacy is a remastered version of Tristia of the Deep-blue Sea, a popular game released exclusively for Windows in 2002. The eye-catching character designs and worldview of E-i Komatsu, as well as the complex gameplay, have been retained, while the graphics have been completely redesigned to support the latest environments. The beautiful ocean city of Tristia. Nicknamed the pearl of the sea, it has been animated by maritime trade since ancient times…until recently. A dragon attack 10 years ago robbed Tristia of its former beauty, and attempts by local residents to revive it did not bring any results. The city resigned itself to the fate of decline.

Tristia Restore is a new game planned for the 20th anniversary of the release of the original Tristia of the Deep-blue Sea. Following the character design and worldview of Ye-ji Komatsu, which has attracted many fans, the city-building heroine Nanoki is expressed in an intuitive action game that anyone can enjoy. In order to restore the abandoned sea city of Tristia, the genius inventor Nanoka Franka embarks on her mission to revive the city. Invent and create items from various materials and develop Tristia within the time limit. Nanokas workshop, where she came to revitalize the city, constantly receives requests for the invention and creation of objects. She have to use her brain, but sometimes she runs out of time and has to run left and right around the workshop to fulfill requests.