| Developer: | Kogado Studio, Kumasan Team |
| Publisher: | Kogado Studio (PC) Nippon Ichi (PS2) |
| Genre: | Music video game, Visual novel |
| Platforms: | PC, PlayStation 2, PSP |
| Released: | July 20, 2002 (PC) March 25, 2005 (PS2) August 9, 2012 (PSP) January 20, 2023 (Switch) |
| Type: | novel |
| Author: | Syogo Mukai |
| Illustrator: | Eeji Komatsu |
| Publisher: | Enix |
| Published: | November 15, 2002 |
| Type: | manga |
| Aoi Umi no Torisutia ~Nanaka no Hatsumei Koubou Nikki~ | |
| Author: | Sakuya Yuki |
| Publisher: | MediaWorks |
| Demographic: | Shōnen |
| Magazine: | Dengeki Daioh |
| First: | April 2004 |
| Last: | November 2004 |
| Volumes: | 1 |
| Type: | ova |
| Director: | Hitoyuki Matsui |
| Studio: | Ufotable |
| Released: | April 23, 2004 |
| Episodes: | 2 |
| Type: | novel |
| Author: | Takashi Aki |
| Illustrator: | Kawase Yuki (ufotable) |
| Publisher: | MediaWorks |
| Published: | November 10, 2005 |
is a PS2, PSP, and PC game, developed by Kogado Studio. This game is part of the Deep-Blue series along with the sequel, and Akatsuki no Amaneka to Aoi Kyojin. The story has been adapted into an OVA, and has been released with a title of "發明工坊" in China, Hong Kong, Taiwan, U.S.A., Russia, and Poland.
For the 10th anniversary celebration, this game was re-released on the PSP on August 9, 2012.
It was re-released as Tristia: Legacy on the Nintendo Switch & Steam in 2023.[1]
The opening and ending theme song of the game is "UP TO ME!!" by Sakura Nogawa, who voices the character of Nene Hampden.
Tristia of the Deep-Blue Sea is a simulation game in which the player's goal is to rebuild the city of Tristia. The player takes the role of Nanoca Flanka and must build an array of technological gadgets using schematics and various raw materials that can be encountered in-game, and sell them to people of Tristia. As new gadgets are introduced to the town, the town is able to produce a greater variety of items and gradually grows.
Tristia was a beautiful seaside town that slowly fell into ruin and dilapidation after being invaded by a dragon ten years before the start of the game. The people of the town tried in vain to rebuild the city in the hopes of restoring it to its former glory. Hopeless, the people decided to send for Prospero Flanca, a legendary inventor who was well known for reviving many dying cities. They received an answer from Prospero, but to their confusion, it was a girl who arrived at the port of the town. That girl was Nanoca, Prospero's granddaughter, and she has been assigned to manage the renovation project.