Today, as with its predecessor, Quake Team Fortress, it is not very active, and as such, there are few servers with humans on them, and bots prosper in the majority of servers. As of 2003, the game was one of the ten most played Half-Life mods according to GameSpy.
In June 2000, the game underwent a significant upgrade, adding new player character models and game modes. The game itself involves a number of teams, each with access to ten classes, competing in a variety of modes such as Capture the Flag, Control Points, and Escort. The development of Team Fortress Classic was led by John Cook and Robin Walker, two of the three designers from Team Fortress. A standalone version was later released on January 16, 2003. A port of the Team Fortress mod for Quake/ QuakeWorld, Team Fortress Classic was originally released for Windows on April 1, 1999, as a mod for Half-Life and based on the Half-Life Engine (Gold Source Engine). Team Fortress Classic is a class-based multiplayer online first-person shooter video game developed by Valve and published by Sierra Studios. Team Fortress Classic ( TFC), also known as Team Fortress 1.5, is a title in the Team Fortress series of games.
*Recommended: 800 MHz processor, 128 MB RAM, Windows XP, Half-Life update (adding TFC): April 7, 1999
