Kill! Zone - The Doom Wiki at

Kill! Zone, Episode 1: "The Trek Begins", is a Doom II episode replacement mod of seven levels, created by Donald R. Howard and Heuristic Software in 1996. The WAD uses original soundtrack composed by Scotty Ray Warren, Chris Torgersen, Bob Reganess and David W. Keefer.

Slenderman, The Elevator Of Doom Wiki

Phobos Mission Control - The Doom Wiki at

Super Sonic Doom - The Doom Wiki at

ML01: Attack (Master Levels), Doom Wiki

Plasma gun - The Doom Wiki at

Mancubus (Doom Eternal), Doom Wiki

Wraith (Doom 3), Doom Wiki

Doom 2 Extreme Gold - The Doom Wiki at

Doom (1993 video game) - Wikipedia

MAP30: Icon of Sin (Doom II), Doom Wiki

Killing Zone - The Doom Wiki at

Killzone (video game) - Wikipedia