Game Name: Final Fantasy XI Online
Link to Official Site: FINAL FANTASY XI Official Web Site
Does it have guilds: Yes
Does it need a market section: Yes
How much interest do you estimate: At least a 8/10. This game has been, and continues to be very huge. It is realeased for the PC, PS2 and Xbox 360 and shares a Internation server with English and Japanese players. But players have access to a in-game translator system using words selected in a list.
Separated from the other Final Fantasy request, as this is for the Online Game solely.