Numerous writers have worked on the series, including Sakaguchi himself, early writer Kenji Terada, Kazushige Nojima and Yasumi Matsuno. The Final Fantasy series features recurring thematic elements, including magical crystals, and creatures such as the Chocobo and Moogle which have appeared in multiple roles. While most entries in the series are separate from each other, they have recurring elements carrying over between entries: these include plot themes and motifs, gameplay mechanics, and visual elements.
The eponymous first game in the series, published in 1987, was conceived by Sakaguchi as his last-ditch effort in the game industry the title was a success and spawned sequels. The franchise centers on a series of fantasy and science fantasy role-playing video games (RPGs). Final Fantasy is a media franchise created by Hironobu Sakaguchi, and developed and owned by Square Enix (formerly Square).