Counter-Strike - online puzzles

Counter-Strike (CS) is a series of multiplayer first- person shooter video games, in which teams of terrorists battle to perpetrate an act of terror (bombing, hostage-taking) and counter-terrorists try to prevent it ( bomb defusal, hostage rescue ). The series began on Windows in 1999 with the first game, Counter-Strike. It was initially released as a modification ("mod") for Half- Life and designed by Minh "Gooseman" Le and Jess "Cliffe" Cliffe before the rights to the game's intellectual property were acquired by Valve Corporation, the developers of Half- Life.

That original game was followed by Counter-Strike: Condition Zero, developed by Turtle Rock Studios and released in 2004. In November of that year, Counter-Strike: Source was released by Valve. Released only eight months after Condition Zero, Source was a remake of the original Counter-Strike and the first in the series to run on Valve 's newly created Source engine. The fourth game in the main series, Counter-Strike: Global Offensive, was released by Valve in 2012 for Windows, OS X, Xbox 360, and PlayStation 3. Hidden Path Entertainment, who also worked on Counter-Strike: Source post-release, helped to develop the game alongside Valve.

There have been several community -made spin-off titles created over the years. These include the Online series, Neo, and Nexon : Zombies.