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The website for League of Legends, a game developed by Riot Games Inc., a subsidiary of Tencent Holdings Ltd., is displayed on an Apple Inc. iPad, bottom, and iPhone 5c in an arranged photograph in Hong Kong, China, on Tuesday, May 13, 2014. Tencent owes much of its 60-fold increase in annual sales over the past decade to games distributed through personal computer-based services, such as the QQ instant-messaging platform. Photographer: Brent Lewin/Bloomberg via Getty Images

The website for League of Legends, a game developed by Riot Games Inc., a subsidiary of Tencent Holdings Ltd., is displayed on an Apple Inc. iPad, bottom, and iPhone 5c in an arranged photograph in Hong Kong, China, on Tuesday, May 13, 2014. Tencent owes much of its 60-fold increase in annual sales over the past decade to games distributed through personal computer-based services, such as the QQ instant-messaging platform. Photographer: Brent Lewin/Bloomberg via Getty Images