The most up to date version of the popular, multiplayer PC game Counter Strike. Counter Strike Source uses the source engine, also found in other steam games such as 'Half-Life 2', 'Day of Defeat Source' and most recently 'Team Fortress 2'
counter-strike: source, far inferior to the original 1.6 version, but fun for rich kids who have loads of money, and also a leading reason why CAL is undergoing much internal turmoil given the recent league changes