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Thor Fridriksson

Founder, CEO, Plain Vanilla Games

For...can you guess?

When it came out last fall, the addictive trivia game QuizUp surpassed Draw Something as the fastest-growing app in history. It has since garnered more than 12.5 million downloads and attracted $22 million in funding. But creator Thor Fridriksson's path to stardom was not as simple as the app's celebrated design.