Dissidia Final Fantasy Opera Omnia was a free-to-play role-playing video game set in the Dissidia universe of fighting games. Opera Omnia was published by Final Fantasy franchise owner Square Enix, and was co-developed by Square Enix and Team Ninja, who also developed Dissidia Final Fantasy NT, for iOS and Android. Opera Omnia launched on February 1, 2017, in Japan, and was released worldwide on January 30, 2018.

Dissidia Final Fantasy is a fighting game with action role-playing elements developed and published by Square Enix for the PlayStation Portable as part of the campaign for the Final Fantasy series' 20th anniversary. It was released in Japan on December 18, 2008, in North America on August 25, 2009, and in Australia and Europe in September. It was then re-released in Japan, based on the North American version, as Dissidia Final Fantasy: Universal Tuning, on November 1, 2009.