Team Fortress 2

If you've ever played Team Fortress Classic, then you've played Team Fortress 2. The thing is, Team Fortress 2 is essentially a simplified (but not dumbed-down), extremely well balanced and fantastically polished Team Fortress Classic, easily worth the $50 you'll have to shell out for it and the 4 other Orange Box titles. There is an extremely loose plot you can infer from looking closely at the games details. Basically, in an extremely cartoony but violent 60's spy world the Builders Leage United (Team BLU) and Reliable Excavation & Demolition (Team RED) are fighting for an unknown reason. There are 9 classes that play exactly the same for each team, from the nimble and agile scout, the chaingun toting superpowerful heavy, and the (literally) backstabbing spy. If this even sounds remotely interesting to you go buy the Orange box right now!