Activision (Nasdaq: ATVI) announced today that Call of Duty 4: Modern Warfare was the number one title in units worldwide for calendar 2007, according to The NPD Group, Chart Track and The GFK Group. Developed by Infinity Ward, Call of Duty 4: Modern Warfare, has sold in excess of seven million units worldwide since its launch in November.

Call of Duty 4: Modern Warfare has garnered critical acclaim, securing more than 18 perfect score reviews and over 40 combined Editors' Choice and Game of the Year awards in the U.S. alone. The game has been nominated for 10 prestigious Academy of Interactive Arts and Sciences awards, including Game of the Year. Call of Duty 4: Modern Warfare also currently is the number one Xbox 360 title on Xbox Live, based on unique users, according to www.majornelson.com.

"We're very excited about this achievement especially given so many competitive titles this year," said Will Kassoy, senior vice president, global brand management, Activision Publishing, Inc. "Consumer and critics agree that Call of Duty 4: Modern Warfare is one of the best games ever created and further establishes Call of Duty as one of the premier brands in the industry. This ground-breaking game and franchise continue to establish new standards by which all other action games will be judged."

Headquartered in Santa Monica, California, Activision, Inc. is a leading worldwide developer, publisher and distributor of interactive entertainment and leisure products. Founded in 1979, Activision posted net revenues of $1.5 billion for the fiscal year ended March 31, 2007.