Doom 3 +

Doom 3
Brand Bethesda
Doom 3 is a first-person science fantasy horror video game developed by id Software and published by Activision. Doom 3 was first released for Microsoft Windows on August 3, 2004. The game was later adapted for Linux, as well as being ported by Aspyr Media for Mac OS X. Developer Vicarious Visions ported the game to the Xbox console (now backwards compatible to the Xbox 360), releasing it on April 3, 2005. British developers Splash Damage also assisted in design for the multiplayer elements of the game.
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expired [PC, Prime] Free - Doom 3 @ GOG via Prime Gaming

Prime account required. You will be given a GOG key. Claim game on Amazon Prime Go to GOG, log in, hover over account name Redeem a Code Credit: dealbot

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expired [PC - Steam] Doom 3 BFG Edition, Wolfenstein 3D, Quake II, Return to Castle Wolfenstein - US $2.50 Each (~NZ $3.45) @ Amazon

Download code, download and play instantly :) BFG Edition is the ultimate collection of groundbreaking games that defined the first-person shooter (FPS) genre The collection includes DOOM, DOOM 2, …