Then in April Gree announced a similar deal with Mig33, a gaming company popular in Southeast Asia to make their games inter-operable.

FORBES: Names You Need To Know: Gree Pushes Mobile Games Global

The "growth hub" for casinos, though, is really Asia, says David Green, director of the gaming practice at PricewaterhouseCoopers' Macau office.

FORBES: Genting's Poster Boy

According to PricewaterhouseCoopers, Asia is set to become the world's biggest gaming market in 2013.

BBC: People at gaming station Macau

Hoguet also likes Genting, a gaming company, with operations in Malaysia, Asia-Pacific and Europe.

FORBES: Unloved Asia

This major global eSports event featuring some of the best pro gaming competition in the world will take place in Asia toward the end of 2012.

FORBES: Connect

Traditionally, says Jan McMillen, a gaming-industry expert at the University of Western Australia, Asia has either prohibited betting, or doled out exclusive privileges to well-connected crony capitalists.

ECONOMIST: Gambling in Asia