At present time, Devil May Cry 4 is the fastest-selling installment in series, which sold in total around 9 million units. Also, the figure are most-likely to significantly grow in the future as well, as the game is schedule to arrive on the PC as well, later this year.
Devil May Cry 4 was first released in January in Japan. The game arrived in North American and European stores earlier this month.
The original Devil May Cry game was released back in 2001.