Wolfenstein: Enemy Territory (also referred to as simply Enemy Territory, ET or WET) 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 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.
Here are some pics:
You can check out the gameplay here:
1. Run and install the WolfET260 executable.
2. Download the new 260b patch from here:
3. Run and install the et_patch_2_60 executable into the same folder as the game.
4. Download the ultra_realism_deluxe_v1.1 mod if you want better sounds and textures from here: