Doom 3 - The Doom Wiki at

Doom 3 is a science fiction horror first-person shooter computer game developed by id Software and originally published by Activision.

Doom 3: The Black Sheep of the Most Iconic Shooter Franchise, by Alex Rowe

Commando (Doom 3) - The Doom Wiki at

Doom Eternal - Wikipedia

Arch-vile (Doom 3) - The Doom Wiki at

Doom 3 - Wikipedia

Cacodemon (Doom 3) - The Doom Wiki at

Tick (Doom 3), Doom Wiki

Doom 3, Doom Wiki

Pistol (Doom 3) - The Doom Wiki at

Vulgar - The Doom Wiki at

Doom 3 (Xbox) - Team XLink Wiki

Doom (film) - Wikipedia

Ancient Martian civilization - The Doom Wiki at

Hell Hunters - The Doom Wiki at