>> oops. >> back in the old days before time itself, spending 17 hours a day at places like this was frowned upon by family. now gaming has become a respected and often lucrative profession in korea. simon has pretty much retired from gaming, per se. instead he makes a living advising rising stars in the industry. >> you do this for a living? >> yeah. >> how many hours a day? >> the professional gamers, they spend all day playing this game. they wake up, play a game, practice. have lunch, practice again, have dinner, and go to sleep. >> today the game is one of those multiplayer kill fests where mighty avatars boast a wide range of powerful abilities. raining death across the globe