Edit by Brothersoft: Counter-Strike is a tactical first-person shooter video game which originated from a Half-Life modification by Minh "Gooseman" Le and Jess "Cliffe" Cliffe.Counter-Strike pits a team of counter-terrorists against a team of terrorists in a series of rounds. Each round is won by either completing the mission objective or eliminating the opposing force.
Counter-Strike was developed first as a Half-Life modification, and therefore named "Half-Life: Counter-Strike". The original version was a 3rd-party Half-Life modification, but since then it has grown into a commercial mod and later advertised as a separate game in itself. It still uses and runs on the Half-Life game engine and is based on its unchanged structure.