Doom Eternalis full of various demon types and progressively introduces them throughout the game. Subsequently, the difficulty will grow as different enemy types enter each battle. id Software has done a great job of making each demon type feel and look unique.
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Each enemy requires a different approach and will throw the Doom Slayer’s technique off ever so slightly when they are introduced. Players will need to adapt quickly to defeat their opponents. Many of the demons inDoom Eternalare manageable, but there are several that willtest players' patience and composure.
Updated July 12, 2025, by Jack Pursey:It’s been over a year since the release of id Software’sDOOM Eternal,and many of the franchise’s fans believe it ranks among some of the series' top titles likeDOOM(1993) andDOOM(2016). The series has always been known for throwing a ton of different enemies at players, andDOOM Eternalis no different. Moreover, the latest game in the series has given many of the demons specific strengths and weaknesses,increasing the game’s overall difficultyas players now need to add a layer of strategy to their gameplay. To shed further light on some ofDOOM Eternal’s toughest enemies, we’ve expanded this list by a further five entries.
15Revenant
The Revenant first appears in Exultia and gives players a lot to think about. Its long-range rocket attacks and jetpack can cause the demon to leave players' eyesight and attack them from a blindspot. Thankfully, players can disable the rocket’s lock-on functionality by shooting the Revenant’s shoulder canons.
Players can use the Revenant’s strength to their advantage inDOOM Eternal, as the demon is a playable character in Battlemode.
14Mancubus
The Mancubus first appeared back in 1994 withDOOM II,making it one of the oldest enemies in theDOOMseries reappear inDOOM Eternal.Much like the Revenant, the Mancubus is a headache for players due to its long-ranged attacks. This creature has two enormous canons on each arm, which can deal significant damage to players with frightening accuracy.
The Mancubus is also playable inDOOM Eternal’s Battlemode.
13Prowler
Whereas the Mancubus has been around for nearly three decades, the Prowler is one of this list’s newer entrants. The enemy made its first appearance inDOOM(2016) as a multiplayer exclusive, withDOOM Eternalmarking its debut in a single-player campaign.
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The Prowler enemies are a problem for players due to their devastating speed and quick melee attacks, making them a real issue when players have other enemies to deal with simultaneously.
12Arachnotron
The Arachnotron is yet another enemy on this list that causes issues for players with its long-ranged attacks. Thankfully, the enemy’s cannon turret can be destroyed, though doing so is easier said than done.
The best way to disable the cannon is with the Precision Heavy Cannon, making the enemy an easy kill once it’s destroyed. The main problem for players with these spider-like demon is that it arrives very early into the game, creating a steep learning curve for new players.
11The Gladiator
DOOM Eternalmarks the first appearance of The Gladiator. The new enemy certainly makes its imposing presence known, as it’s the boss of Sentinel Prime. The main difficulty with this creature comes from its defensive strengths. Along with a large health pool, the boss uses its huge shield to guard itself against the player’s attacks.
Furthermore, the boss isn’t a pushover with its attacks. The Gladiator can deal significant damage with its mace, along with a projectile attack that it fires from the shield.
10Pain Elemental
The pain elemental is one of the originalDoom IIdemons to make an appearance in theDoom Eternal. This demon is similar to the cacodemon, which players are introduced to early on in the game. These floating, bulbous creatures have significantly more health than their cacodemon counterparts.
The reason pain elementals are more difficult to handle their significant health boost and their ability to throw lost souls at theDoom Slayer. The lost souls will explode on impact and add to the already high chaos.
The dread knight is a cyborg version of the standard hell knight. Hell knights are introduced early on in the game and are solely melee focused. The hell knight will run toward players and pounce on the ground to cause a wave of damage.
Dread knights have been upgraded with various cybernetic enhancements such as argent energy blades. Once they slam the ground with their blades, the nearby area enflames with argent energy, which deals significant damage.
8Fireborne Baron
The baron of hell returns from 2016’sDoom,and he is also wielding some upgrades. The original baron of hell was easily dispatchable due to the fact it was not equipped with blades from fire.
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The firebourne baron got a significant upgrade in terms of health and damage. He acts the same as the previous baron of hell but is much more durable. In fact, he can withstand a single BFG shot, which is the strongest weapon in the game.
7Whiplash
Whiplash isDoom’s first female demon and enters with some devastating attacks. She is at her most difficult when there are various other demon types on the field. Her objective is to get behind the player and use a devastating whip attack.
This demon does not have a large amount of health like the other demons on this list, but her fast-moving, slinky body makes her difficult to kill. A freeze grenade or rocket launcher will be capable of stopping her in her tracks.
6Tyrants
Tyrants are based off the original cyberdemon and stand much taller than the other demons. The design has all been changed to look significantly different thanDoom2016’s version.
This ten-foot-tall demon is a slow mover but can deal high-levels of damage. Players should move fast to dodge their laser beam from a distance. It may also use an argent energy sword if players get too close.
