
Wolfenstein: Enemy Territory (also referred to as simply Enemy Territory, ET or W:ET) is a free multiplayer first-person shooter video game set during World War II.It was originally planned to be released as a commercial expansion pack to the popular FPS Return to Castle Wolfenstein (also referred to as RTCW) and later as a standalone game However, due to problems with the single-player aspect, the multiplayer portion was released on May 29, 2003 as a freeware standalone game.