CS - original version of Counter Strike game. CS download is free, but only non steam version. Many people thinks that CS is Condition Zero, but it is not. CS - Counter Strike, it is same version as CS 1.6 only this version has no prefixes like (V48 ant etc.) it's like primary CS game version only cracked. To download CS you need select mirror that you like ant proceed to download page --> it is very simple, but if you need tutorial how to install cs download then head to the main page and scroll till you see tutorial - CS installiation. CS works fine on Windows 95, Windows DOS, Windows XP, Windows 8 and other windows versions. This CS does not works on OS like MAC and LINUX, so have that in mind, do not download CS if you don't have windows OS on your computer.