Japan loves its mobile games. While nearly a third the population of the United States, the island nation spends almost three times as much on mobile games. In fact, Japan spends more than number two (China) and number three (The United States) combined. This according to a recent report from App Annie — a mobile app analytics firm. According to the report — which measures average revenue per user (ARPU) for iPhone games — Japan’s insatiable appetite for mobile games starts, and stops, with the role-playing game (RPG). Looking at the games that make up Japan’s top 30, 22 of…

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