Erik Johnson

Valve has taken 40% off its co-op survivavl title Left 4 Dead for this weekend only on Steam.

Running $40 standard, the PC version of the award winning game goes for only $24 through the weekend.

It’s a great chance to check out the recently added Survival Pack DLC that brings survivor mode and unlocks Versus multiplayer for the ‘Dead Air’ and ‘Death Toll’ campaigns.

Additionally, Steam has unlocked the game for all to try through tomorrow (Friday, May 1st) at 5:01 PM Pacific.