Team Fortress Classic

Team Fortress Classic is a team-based online multiplayer first-person shooter video game. Matches in Team Fortress Classic pit two teams against each other, with each team member having access to nine distinct classes. Competition takes place in a variety of scenarios, usually capture the flag, VIP protection and escortion, or territorial control. Since its release, the game has undergone significant upgrades to the player models and game modes. (wikipedia.org)