Left 4 Dead “Survivor Pack,” SDK on the way

February 5, 2009

Valve has announced today that they will be releasing the game’s first expansion this spring for Xbox 360 and PC. The new “Survivor Pack” will include a new multiplayer mode called “Survival” and two new campaigns for Versus mode.

For PC players, Valve is also releasing a free Software Development Kit to allow users to create their own campaigns. The SDK is also expected to be released this spring.