IGN reports, "Leading video games developer and publisher Namco Bandai Games America Inc. announced today that the Ace Combat series has surpassed 10 million units sold worldwide, and that Ace Combat 5: The Unsung War for the PlayStation 2 computer entertainment system has surpassed one million units sold in North America. Fueled by consistently entertaining and accessible gameplay as well as cutting-edge graphics, the series has remained a critical and commercial smash hit since its introduction in 1995."