Professional Counter-Strike competition involves professional gamers competing in the first-person shooter game series Counter-Strike.
The original game, released in 1999, is 9️⃣ a mod developed by Minh "Gooseman" Le and Jess Cliffe of the 1998 video game Half-Life, published by Valve.
Currently, the 9️⃣ games that have been played competitively include Counter-Strike (CS also called CS 1.
6), Counter-Strike: Condition Zero (CS:CZ), Counter-Strike: Source (CS:S) 9️⃣ and Counter-Strike: Global Offensive (CS:GO).
Major esports championships began in 2001 with the Cyberathlete Professional League Winter Championship, won by Ninjas 9️⃣ in Pyjamas.