Who knew game dealers were so festive? Just about every major digital distributor is celebrating Halloween by knocking as much as 75% off select titles. Valve has reduced a handful of its most popular games by 50%, including Left 4 Dead, Left 4 Dead 2 and Team Fortress 2, and dozens of other games on Steam have been discounted as well. Meanwhile, Direct2Drive offers 15% off on all horror games via coupon code "kreepy" and EA has slashed 50% off Bad Company 2, Mass Effect 1 and 2, and Dead Space.

Steam
Left 4 Dead $9.99 (50% off)
Left 4 Dead 2 $9.99 (50% off)
Team Fortress 2 $9.99 (50% off)
BioShock $4.99 (75% off)
S.T.A.L.K.E.R. Bundle $9.99 (75% off)
Overlord Complete Pack $7.49 (75% off)
Aliens vs Predator $9.99 (50% off)
Devil May Cry 4 $9.99 (50% off)
Warhammer 40,000 Dawn of War titles 50% off
Dead Space $9.99 (50% off)
Resident Evil 5 $14.99 (50% off)
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Direct2Drive
Preorder Call of Duty Black Ops and get 20% off any other COD title
All horror games 15% off via coupon code "kreepy"

Impulse
Amnesia: The Dark Descent $9.99 (50% off)
Sins of a Solar Empire $8.95 (55% off)
Resident Evil 5 $14.99 (50% off)
Dead Space $9.99 (50% off)
Devil May Cry 4 $9.99 (50% off)
Penumbra Collection $10.00 (50% off)
AI War: Fleet Command $9.99 (50% off)

EAStore
EA Halloween sale, 50% off various titles including:
Battlefield: Bad Company 2 $14.97
Mass Effect $9.97
Mass Effect 2 $9.97
Dead Space $9.97

Games for Windows
F.E.A.R. 2: Project Origin $4.99 (75% off)

Good Old Games
Halloween-themed Activision games 20% to 40% off