Left 4 Dead

By: Valve
From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.
How much money did Left 4 Dead make?
We estimate that Left 4 Dead made $30,351,667.95in gross revenue since its release. Out of this, the developer had an estimated net revenue of $8,953,742.05. Refer to the revenue table for a full breakdown of these numbers.
$30,351,668
Gross Revenue
Adj. Regional Pricing
$2,731,650.12
Discounts
$6,070,333.59
Refunds
$3,642,200.15
Steam Cut
$5,372,245.23
VAT / Sales Tax
$3,581,496.82
Net Revenue
$8,953,742.05