Gaming heaven at Shanghai showcase

One of the world's biggest e-sports tournaments, the International Dota 2 Championships, is being staged in Shanghai this week, with a whopping $33 million in prize money up for grabs.

Sixteen teams from China, Russia, Europe and North America are battling it out for a winner's check of $15 million at Mercedes-Benz Arena until Sunday.

This is the first time China has hosted the annual event, which has been held in the United States since 2011.