Wolfenstein: Enemy Territory Multi-player free game

Wolfenstein: Enemy Territory MMO
free-to-play multiplayer game in which players wage war as Axis or Allies in team-based combat. It’s a team game; you will win or fall along with your comrades. The only way to complete the objectives that lead to victory is by cooperation, with each player covering their teammates and using their class special abilities in concert with the others.
Features multiplayer support for up to 32 players, Wolfenstein: Enemy Territory is the ultimate test of communication and teamwork on the battlefield. Players join the fray as one of five distinct character classes each with unique combat abilities. Each Axis or Allies team can divide itself into smaller fire teams for quick and easy communication using an intuitive messaging system and dynamic command map of the entire battlefield.
Screen shots from Game play

Software Requirements
English version of Windows® 98/ME/NT4.0 (SP6)/2000/XP operating system (Windows NT 4.0 not recommended for clients)
DirectX® 8.1 or higher
Requirements
Graphics Card: 3D hardware accelerator with 32 MB with full OpenGL® support
CPU: Pentium III® 600MHz processor or AMD equivalent
RAM: 128 MB RAM
HDD Space: 271 MB free hard disk space for game files, 500 MB for swap files
Internet: Internet connection required for online play
Website and download
Download (game and source code)
Genre: Multiplayer Combat Game
Platforms: Windows, Mac OSX, Linux
Rating: ESRB: Mature | PEGI: 16


