RPGamer writes: "The year is 2010. Microsoft has (assumedly) fallen, after a deadly computer virus caused several people to suffer fatal seizures, their Windows operating system replaced by ultra-secure ALTIMIT. Blizzard's World of Warcraft has been toppled by "The World," a massively multiplayer RPG from CC Corporation that has quickly grown to service twenty million customers worldwide, easily shattering the previous record of eleven million. It is within this game that the .hack series takes place. .hack//Infection is the first of four games in the original quadrilogy, accompanying the anime .hack//SIGN and various other pieces across multiple media to tell the story of Kite, "The World," and the events that transpired within its boundaries."