October 12, 2006--Activision, Inc and Valve® today announced an agreement to distribute four of Activision's PC games -- Call of Duty® 2, GunT, Call of Duty® and Call of Duty® United Offensive® -- using Steam.

Steam is the first full-featured broadband platform for the delivery and management of games and digital content, and has pioneered its broadband services to over 10 million customers with core titles such as Valve's Half-Life 2 and Counter-Strike.

"Activision has been a player on every major gaming platform dating back to the Atari 2600," said Gabe Newell, co-founder and president of Valve. "We're delighted to welcome them to Steam, and offer this legendary company's products."

"Our agreement with Steam enhances our current online distribution model by allowing us to bring our games to the broadest possible audience," said Dave Anderson, Activision's Senior Director of Business Development. "As broadband penetration continues to grow worldwide, offering our titles digitally to the millions of gamers connected through Steam makes sense to us."

About Steam
The leading online platform for PC games and digital entertainment, Steam delivers new releases and online services to over 10 million PC users around the world. For more information, please visit www.steamgames.com

About Activision
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 $1.47 billion for the fiscal year ended March 31, 2006.

About Valve
Valve is an entertainment software and technology company founded in 1996 and based in Bellevue, Washington. The company's portfolio of entertainment properties includes Half-Life®, Counter-StrikeTM, Day of Defeat®, Team Fortress® and Portal. Valve's catalog of products accounts for over 20 million retail units sold worldwide, and over 80% of PC online action gameplay. In addition, Valve is a developer of leading-edge technologies, such as the Source game engine and Steam, a broadband platform for the delivery and management of digital content. For more information, please visit www.valvesoftware.com

Activision, Call of Duty, and United Offensive are registered trademarks, and GUN is a trademark, of Activision Publishing, Inc. All rights reserved.