After 15 years of operation the PS2 version of Final Fantasy 11 Online has been closed, alongside the more recent Xbox 360 game.
The PS2 game launched in Japan way back in 2002 under Square, before the company merged with Enix in 2003.
"As of Thursday, March 31, 2016 at 7:00 a.m. (PDT), service for the PlayStation 2 and Xbox 360 versions of FINAL FANTASY XI will end. Those who are using these versions and wish to continue playing after April 1, 2016, will be required to switch to the Windows® version," reads a note on the game's website.
Information on how to migrate to the PC game can be found on the FFXI website, and you won't even need to buy the game again.