Short answers, pulled from the story.
Final Fantasy Crystal Chronicles is a series of video games developed by Square Enix that exists within the broader Final Fantasy franchise. Beginning in 2003 with a GameCube release, it is set in a separate unnamed world with its own four tribes and recurring themes, functioning as a distinct branch of the franchise rather than a direct continuation of the main series.
Square created a shell company called The Game Designers Studio to develop games for Nintendo hardware without disrupting its commitments to Sony. The decision followed the box office failure of Final Fantasy: The Spirits Within and a period of strained relations with Nintendo dating back to the development of Final Fantasy VII for Sony's PlayStation. Akitoshi Kawazu, who co-owned the shell company, described the Nintendo exclusivity as an act of loyalty to the partner who had first requested the game.
Kumi Tanioka composed the music for most of the series, using medieval and Renaissance instruments including the recorder, the crumhorn, and the lute. For The Crystal Bearers, Hidenori Iwasaki and Ryo Yamazaki composed an acoustic score inspired by American music. Tanioka and Iwasaki collaborated again on the 2020 remaster of the original game.
The original Final Fantasy Crystal Chronicles sold 1.3 million units worldwide following its releases in 2003 in Japan and 2004 internationally. Ring of Fates sold nearly 700,000 units worldwide, and Echoes of Time reached 570,000 units.
The series released predominantly on Nintendo hardware, including the GameCube, Nintendo DS, and Wii. A remastered version of the original game launched in 2020 for the Nintendo Switch, PlayStation 4, Android, and iOS, marking the series' first appearance on non-Nintendo platforms.
Akitoshi Kawazu supervised the series from its inception, serving primarily as executive producer on each entry and also writing the scenario for The Crystal Bearers. Toshiyuki Itahana directed The Crystal Bearers after handling character design on earlier entries, while Mitsuru Kamiyama directed both Ring of Fates and Echoes of Time.