The Richest Gaming Start-Ups You've Never Heard

Flickr image via William Brawley
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Playing Internationally

Lately it seems like the biggest summer blockbusters aren't movies but the games on your smartphone.

From Dots to LetterPress and DrawSomething to Candy Crush Saga, there is just no escaping their pull.

Here are eight developers making a killing at home and abroad, based on revenue estimates from Think Gaming.

-- Em Maier