TFC
Team Fortress Classic is the 1999 update to the popular 1996 mod for Quake. It launched Half-Life's multiplayer features into the stratosphere, complimenting the amazing single-player experience with an equally superb multiplayer one. Some see it as a stop gap until Team Fortress 2, others as a testing ground to try new features which may or may not appear in this long awaited title. Others simply play it for what it is. Either way, it too is a hugely enjoyable mod with a healthy number of supportive servers and the backing of Valve Software.