Gameztraffic writes: "Ahh Valve, you gods amongst men. Without you, where would us humble gamers be? Half-Life, Counter Strike, Team Fortress and their various sequels are synonymous with brilliant gameplay, fantastic communities and long lasting appeal. Up until last month, Counter Strike: Source was the most played multiplayer game on Steam (since overtaken by the brilliant yet flawed PC version of Modern Warfare 2). We're talking about a game that is 5 years old. It's amazing to think it's still being played religously."