Final Fantasy is a video game series developed and published by Square Enix (formerly Square). The first title in the series, the eponymous Final Fantasy, premiered in Japan in 1987, and Final Fantasy games have been released almost every single year since. Fifteen games have been released as part of the main (numbered) series. Sequels, prequels, spin-offs, and related video games have been published, as well as numerous titles in other media forms. Each game in the main series takes place in a different fictional universe rather than serve as direct sequels to prior games, although some titles have received sequels, or prequels, set in the same universe.