Dissidia Final Fantasy Opera Omnia

Dissidia Final Fantasy Opera Omnia is a free-to-play game in the Dissidia Final Fantasy series for the iOS and Android platforms, co-developed by Square Enix and Team Ninja of Koei Tecmo, and published by Square Enix. The game released in Japan on February 1, 2017 and worldwide at the end of January 2018. While the battle system is more similar to a traditional JRPG than to a brawler, it features mechanics from previous Dissidia titles, such as BP and HP being separate forms of damage, Wall Crushes, and special team attacks delivered in the style of EX Bursts.

Gameplay
Opera Omnia follows with the missions-based gameplay of recent Square Enix mobile games. Players are encouraged to traverse a series of fixed maps in story mode, following the game's narrative while fighting baddies and collecting materials for the various cast members and their equipment. Players may also undertake series of rotating mission campaigns to collect new characters and other rare items, either solo or with the aid of their fellow players.

Battles for each mission occur in waves, requiring the player to plan in advance based upon the types of enemies to be encountered. From this, the player can assemble a party of three units, each possessing different attacks and skills, to complete each mission as efficiently as possible.

Characters
The following characters are available as of the Japanese release. Characters are recruited either through story chapters, time-limited events, or Lost Chapters which allow past event characters to be available permanently.

Story
The events take place are complementary to those that transpire in the world of the Dissidia Final Fantasy NT since they share the same gods and the same crystals.

The world was created by Spiritus and Materia as a paradise where their champions could rest from the battles they clashed in the other world. However, one day time and space started to crumble as dimensional distortions, called Torsions, began to appear and several armies of monsters came out of them.

With the equilibrium endangered, the crystals summoned an ancient moogle, named Mog, from the past to help them recover the stability that was about to be lost for good. By gathering "light" with the help of the champions from varied worlds, Mog began an adventure to finish with the end of the world before it's too late.

Release
The release of the global version was pre-announced on social media channels as being 5:30 PM Pacific Standard Time January 30 (01:30 31 January UTC), but did not appear until 6:07 PM (02:07). Further, the iOS version infrastructure had been delayed for more than two hours. Specific reasoning was not given for the delays.

Players whom pre-followed Opera Omnia social media accounts received a gift at launch. In addition, the game hosted a launch campaign extended through February 28.

Withdrawal from Belgium
On November 6, 2018, Opera Omnia announced its intent to withdraw from Belgium, citing a lack of clarity in the country's gaming laws, which currently forbid gambling without a license and do not provide guidance regarding loot crates or gacha as used in-game. This voluntary withdrawal occurred with the release of client 1.6.0 on December 19, 2018.

Voice cast
Note: Japanese voices are used in the global release.

Etymology
Opera omnia is a Latin phrase for "complete works".

Trivia

 * Cloud, Squall, Zidane, Tidus, Lightning and Ace are the only main representatives of their respective series to not be the first characters the player can recruit.
 * However, the player could recruit Squall before Laguna as the event "A Lion's Heart" was the first character event available to access.
 * Shadow from Final Fantasy VI, as well as Yuffie and Vincent from Final Fantasy VII, were optional characters in their original games, yet are mandatory to recruit to progress through the storyline in Opera Omnia.
 * Counting spin-offs from the main games, the Compilation of Final Fantasy VII and Final Fantasy Type-0 are the only series where at least one character has an affinity from each color of Crystal Strengths.