"When Dean "Rocket" Hall started working on the zombie-themed DayZ mod for Bohemia Interactive's ArmA II, he figured it would get a decent response from the few thousand people in the game's devoted modding community. But now that DayZ has broken through to mainstream gaming success—recently crossing over the one million player threshold—it's starting to outgrow the game that it was initially built on top of.

"CNN has an expose showing that in South Korea, the world's most wired country, Internet gaming breeds two extremes: elite 'athletes' who earn fame and six figures, and addicts who literally play until they die and tells the stories of players on both sides of that real-life divide.