Valve Says 'Left 4 Dead' Is Studio's Best-Received Game Ever, Splurges On Ads

Patrick Klepek of MTV Multiplayer writes:

"If you're like me, you've noticed more ads for Valve's zombie shooter "Left 4 Dead" than there ever were for "The Orange Box."

"Half-Life" is Valve's bread and butter, but a press release yesterday said pre-release buzz for "Left 4 Dead" means Valve is pouring more money into pushing "Left 4 Dead" than any Valve game before it."