You can't just buy on steam.
To buy the game Killing Floor (or atleast one way to buy it) is to make a Steam account which is free. Then search the store for Killing Floor and...you can do the rest probably.
No it is a computer game for PC and Mac released May 14 2009 (PC) and May 19 2010 (MAC)
The duration of The Killing Floor is 1.57 hours.
The Killing Floor was created on 2007-05-21.
Killing Floor - Bruce Dickinson song - was created in 1998.
Killing Floor - Howlin' Wolf song - was created in 1964-08.
The Mac OS comes free with a Mac. New versions have a small charge.
NO
The cast of Killing Floor - 2009 includes: Marianne Graffam as versch. Frauen Deutsche Version
Well in 2010 they are making free realms avalible to mac
It is the area within a slaughter house used for the killing of animals.
There is currently no version of Pivot for Mac OS X, free or otherwise. An alternative would be Stykz which is available for Mac OS X and is free. (See links below)