One week after the game shipped to stores, Valve has now made the PC version of Activision's Call of Duty: World at War available for purchase and download via their Steam service. There's no 10 percent deal on this new game, however. You will have to pay the full $49.95 purchase price as you would with the retail boxed version of the game.

All of the previous Call of Duty games, including last year's best selling Call of Duty 4: Modern Warfare, have been available via Steam for some time now. While there's no word yet on the new game's US sales, Gamesindustry.biz has posted word that in the UK, Call of Duty: World at War has outsold last year's Call of Duty 4 by a 2 to 1 margin in its first week.