Playing video games may be fun, but you can't make a living at it. Or can you? A small but growing cadre of quick-fingered keyboard jockeys have joined the circuit as professional video-game players, and with at least three pro leagues paying out more than $1 million in prize money annually, a few are doing quite well.
Next week 600 gamers from 55 countries will compete in Seoul, South Korea, at the third annual World Cyber Games for prizes worth $350,000. The big draw: Counter-Strike, in which teams of "terrorists" and "counterterrorists" battle it out. Other six-figure tournaments include one hosted...