Wolfenstein: Enemy Territory was originally planned as an add-on for Return to Castle Wolfenstein, but soon became it's own game, a separate entity with full single player, multiplayer, AI opponents and teammates!Well that didn't happen and what we got, while less than planned, is amazing...and free!
Wolfenstein: Enemy Territory is a free, stand-alone multiplayer only product, which means it's for online play only, but all you need is what you download.
You do not need anything else to play Wolfenstein: Enemy Territory, than what you download for free.
No Return to Castle Wolfenstein, no additional file packages or monthly charges, just one phat lump of action.
Download this game now from their website here... http://www.planetwolfenstein.com/enemyterritory/
Source: Entretenimiento Online