Valve announced that, Spore, Spore Creepy & Cute Parts Pack, Warhammer Online: Age of Reckoning, Mass Effect, Need for Speed Undercover and EA SPORTS FIFA Manager 2009 are available now to gamers in North America via Steam, a leading platform for PC games and digital content with over 15 million accounts around the world.

In the coming weeks, Mirror's Edge , Command & Conquer Red Alert 3, and Dead Space will also be added to the catalog of EA's titles available via Steam.

"EA is one of the industry's largest publishers," said Gabe Newell, co-founder and president of Valve. "The EA titles coming to Steam this holiday include some this year's top PC titles."

"We are pleased to extend our holiday titles to gamers worldwide via Steam -- a revolutionary technology that is one of the game industry's most successful digital distribution services," said John Pleasants, President, Global Publishing & Chief Operating Officer.