Valve's zombie co-op themed shooter Left 4 Dead continues to bring in the awards. Last night at the DICE Summit it was named as the Best Computer Game of 2008 during the 12th annual Interactive Achievement Awards. The game also won for Outstanding Achievement in Online Game Play.
Some of the other PC games that won their categories this year include Command and Conquer: Red Alert 3 (Strategy/Simulation Game of of the Year), World of Goo (Outstanding Achievement in Game Design), Fallout 3 (Role-Playing Game of the Year) and World of Warcraft: Wrath of the Lich King (Massively Multiplayer Game of the Year). You can check out the press release for the full list of winners.

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