Kantai Collection
Free-to-play games are particularly prevalent in countries such as South Korea and the People's Republic of China. Microtransaction-based free-to-play mobile games and browser games such as "Puzzle &amp; Dragons", "Kantai Collection" and "The Idolmaster Cinderella Girls" also have large player populations in Japan. In particular, the "Nikkei Shimbun" reported that "Cinderella Girls" earns over 1 billion yen in revenue monthly from microtransactions. Electronic Arts first adopted the free-to-play concept in one of its games when it released "FIFA Online" in Korea.