Chinese online games developer and operator ChangYou (CYOU.NASDAQ) plans to spend up to US$600 million on a mobile gaming development initiative, South China Morning Post reported. The Beijing-based company’s publishing subsidiary in the US unveiled the program, called “CYOU Win Plan”, on Thursday. The company has earmarked US$200 million to acquire mobile games, US$200 million in mobile game marketing over the next two years and US$200 million for revenue-sharing arrangements with game developers over three years. Chief executive Wang Tao committed to an aggressive investment drive last month after the company announced its financial results for last year.