If you needed more incentives to play Counter-Strike: Source, then this is it: Valve has added the option to let owners of the game invite a friend to the game through a Steam Guest Pass. This pass, once activated, will let the friend play the game for 3 days, with no obligation to purchase.

Good move there by Valve. Wish other developers would add such functionality.

Tags: Action, Business, FPS, Multiplayer, PC