Founded by ex-Microsoft Games employees in 2010, Beijing-based Astepgames covers online, Flash and mobile games.
Its big hit to-date has been an iOS tower defence game based on the Three Kingdom's theme. Released in February 2011, Three Kingdoms TD - Legend of Shu has only recently dropped out of the Chinese top grossing top 100. At one point, the series - three games have been released - was generating over $200,000 per month in sales.
A version has since been released on iOS via Tencent, and it's coming to Android too. Meanwhile, the game has been successful outside of China, notably in Vietnam, Thailand, Singapore and Taiwan.