Dragon Quest X, although to date it's been confined to the boundaries of Japan. This may be changing, however, as Square-Enix is eyeballing the PC and overseas market.
Producer Yosuke Saito confirmed that the studio is working on a PC port of the console MMO: "The drive to release a PC version was there from the start of Dragon Quest X development. The biggest reason was that, when thinking about which platform was most likely to be connected to a network, the PC was the first that popped into our minds." The PC port of the game will be available in Japan in September.
Square-Enix has been a little more secretive about an overseas release but did say that it's in the works. The studio isn't sure that it'll be rolled out in the same way that Final Fantasy XI was, as Saito thinks that Dragon Quest X will need to be released on separate servers for various countries and regions. "This is just my personal viewpoint, but different countries consume their games at different speeds and the way the communities are run also differ," he said.