Counter-Strike is a very popular mod for Half Life. The first beta was released 3 years ago and has grown into the most played online action game. There are two teams to choose from, the Counter-Terrorists and the Terrorists with numerous maps. There are 4 types of maps, assasination (as), hostage rescue (cs), escap (es) and destruction (de). Of these hostage rescue and destruction are the most liked. Every round an amount of money is awarded depending on kills, team succesfulness finishing objectives. This money can be used to buy guns and equipment to use in the next round.