Gaming over the internet is hugely popular there, and people are now playing for big money in a pro league.

So a mobile phone company called KTF in South Korea is paying a group of 10 young people - some teenagers - to compete nationally for 12 hours a day.

"At first I couldn't believe my luck," one gamer said. "But then I started to feel the pressure. It's really tough."

Reputation at stake

The gamers spend hours in an apartment every day, just playing computer games.

And they're expected to do well. Especially if they're playing amateurs and their reputation is at stake.

Fifteen million people in South Korea are registered for online gaming, which is a whopping 30% of the whole country.

The games in the pro league are actually broadcast on three cable TV channels.