google it
Yes, you can play left 4 dead 2 on steam if you buy from Gamestop.
Amazon.com
No you don't have to. The two games have a different story than the other.
just go to eBay or gamestop their like 30-50 $
at the simlim square at bugis
Find it below in related links.
buy a copy!
Left 4 Dead is available for Mac OS X, Xbox 360, and Microsoft Windows.
Walmart, gamestop, amazon are examples.
Unless you buy it straight to your desktop, no.
Of course not for free the cheapest would be at least £3