However, developing a console MMO has always been a challenge, especially for the Xbox 360. Introducing platform holders into the business of MMOs causes revenue to diminish. Companies like Microsoft want a cut of ongoing revenue generated through the game's subscriptions and/or micro-transactions.
Xbox Live, considered to be the best console online service, has seemingly closed itself off to MMOs. In 2003, Final Fantasy XI was released as a console MMO on the 360. However, according to Square developer Hiromichi Tanaka, that was a one-time only deal to promote Xbox Live, which is now much more established in the gaming community.
"Microsoft's guidelines were not so clearly defined [back then]."