Where can you download killing floor for free

go on limewire pro, you'll have to spend some money for that network, but when you have paid for the limewire you get the music for free.

?? I have noidea where to dowload it , but isn't kiling floor a game (online shooter)?
PS: you can dowload a free version of limewire and download al music from there! But it's lame and people who do it have no respect for people who creates the music (the artists)!! >( SO DON'T!! it's Illegal! buy the CD and place the music on your PC!