Nightmare Fuel: Brutal Doom

  • The Spectres. The partial invisibility is gone. Instead, they are completely invisible except for their glowing red eyes. And these things move fast, and are just as intent on nomming you as their pink cousins.
  • In addition to their regular fireballs, the Imps can now leap right into your face to claw you to death, just like their counterparts from Doom 3.
  • The Spider Mastermind and Cyberdemon are even more terrifying. Thought they were intimidating before? How about when every attack they make shakes the earth?
  • One of the Brutal Doom Mutator side-mods changes the zombified soldiers' grunts and snarls with voice samples, often saying things to antagonise the player. Now imagine hearing things like "You will not escape!" just when you quit the game from main menu.
    • Just as bad, imagine going through a place like the maze in "Nuclear Plant", E 1 M 2, and hear enemies say "I smell fear..." or "I smell human..." as you get near to them, then scream "FLESH!" or "Hell awaits you!" when you enter their line of sight. Occasionally, when active but out of line of sight, they'll mutter "Sector clear..." giving the impression that they're hunting you.
    • And that same mod allow imps to crawl on the ceiling to hunt you. Each growl you hear, you'll start looking up frequently.
  • One of the game's integral features is that when you kill an opponent with your fists, it triggers a Fatality. And even in a mod as gory as this, they still stand out for just how grotesque they are. Picking your enemies up and tearing them in two, ripping out organs, crushing skulls under boots, literally beating faces in with your fists...
    • Oh, and some enemies can deliver fatalities too. Against you, and against each other. Pinkies/Demons and Spectres, for example, will grab an enemy and stuff them halfway into their mouth, chewing on them and sending gore flying before swallowing them whole, while Barons of Hell will grab zombified marines, rip them in half, and then throw the bodies at you. Revenants will grab imps by the leg and pound them repeatedly on the ground, beating them to death before hurling them at you.
  • Let's take a look at some of the fatalities, shall we?
    • Imp: Throwing them to the ground before crushing their skull under your boot, ripping their heart out with your bare hands, knocking them down and then punching them in the face until you crush their skull.
    • Cacodemons: Grabbing their upper jaw before heaving upwards to tear them vertically in half, or ripping out their single eye.
    • Pain Elemental: Ripping off one of their horns before throwing them onto their back and stabbing them in the eye multiple times with it as blood splatters all over you.
    • Mancubus: Ripping open their guts and leaving them slumped to their knees, groaning in pain as their entrails fall out.
    • Chaingunner: Tearing them in half, or throwing them to the ground and ripping their arms off before leaving them to bleed out. They scream for a minute before this happens.
    • Baron of Hell: Ripping his arm off before using the claws on his own severed hand to decapitate him, or tearing him open with your bare hands.
    • Hellknight: Rolling underneath him, grabbing the base of his spine and then ripping out his spinal column.