THE NEXT INSTALLMENT OF THE WORLD\'S # 1 ONLINE ACTION GAME Counter-Strike: Source blends Counter-Strike\'s award-winning teamplay action with the advanced technology of Source technology. Featuring state of the art graphics, all new sounds, and introducing physics, Counter-Strike: Source is a must-have for every action gamer.Play the world\'s number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team\'s success. Your team\'s success affects your role.