Square Enix announced that it will shut down online services for the arcade versions of Dissidia Final Fantasy and Theatrhythm Final Fantasy: All-Star Carnival simultaneously on April 1, 2021 at 6am JST. Although both titles will go offline at the same time, the fates of each title after the network shutdown will be different. Theatrhythm will unlock all songs and difficulties by default, while Dissidia will be effectively reduced to only offering Tutorial mode.
Square Enix is encouraging arcade players of Dissidia to migrate to Dissidia Final Fantasy NT, the console version available on the PlayStation 4 and PC. It will still have its online features available for the foreseeable future. It will allow the transfer of play data from the arcade version to NT from January 23, 2021 until April 30, 2021.
Theatrhythm and Dissidia Final Fantasy are not the only arcade games getting their plugs pulled, as Square Enix also announced that network services for Gunslinger Stratos 3 will end on April 1, 2021. That is a team-based, third-person shooting game that launched in May 2016. With its online services shut down, Gunslinger Stratos 3 will only offer Tutorial and Mission modes.
Theatrhythm Final Fantasy: All-Star Carnival and Dissidia Final Fantasy launched in Japanese arcades on September 27, 2016 and November 26, 2015, respectively. Square Enix stopped updating the multiplayer Dissidia brawler after the final update launched in February 2020 for arcades and March 2020 for consoles.