If you’re looking forward to the upcoming release of Left 4 Dead by Valve, you can save an extra 10% by pre-ordering the game from Steam. For a price of $44.99, you’ll get Valve’s co-op focused survival shooter. Valve has said the preorders for Left 4 Dead will top those of the Orange Box, which makes it the most anticipated release of a Valve game since Half Life 2. This pre-order pertains only to the PC version of the game. You’ll have to pre-order the Xbox 360 version of the game elsewhere. The game will launch at retail and online stores on November 18 in the US, with a European release on November 21.