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10 essential Doom Eternal tips for surviving Nightmare

Doom Eternal tips
(Image credit: id Software)

Doom Eternal’s Nightmare difficulty is terrifying. Enemies have the potential to kill you in two hits and the slightest misstep can result in a swift death. However, there are lots of ways to make this journey manageable.

Here are 10 tips on how to survive Doom Eternal’s Nightmare difficulty.

Never stop moving

Doom Eternal’s enemies constantly have their sights locked onto you, so frequent movement is a must for survival.

Doom Eternal tips

(Image credit: id Software)

One shot is all it takes to get killed, so standing still for more than a second is not recommended. Utilize the dash movement as a way to swiftly traverse the game’s arenas and you should be fine.

Collect everything

Before you complete a mission, head to your map menu and make sure every collectible has been found. These secrets are visible on the bottom right of the screen. If you’ve discovered one already, it will have a brighter background. If not, use the fast travel, which is unlocked at the end of a level, to go back and look around.

Doom Eternal tips

(Image credit: id Software)

Even after I attained every collectible, fighting the final boss on this difficulty took me a dozen tries. You’ll need anything you can get, so it’s incredibly important to make sure you’re finding every Praetor Token (general upgrades), Rune (swappable buffs), Weapon Mod (provides an alternative fire option for weapons), Sentinel Crystal (permanently increases health, armor or ammo) and Battery (can unlock special areas in the Fortress of Doom).

Upgrade the dash skill immediately

Upgrading the dash skill using Praetor Tokens is a great idea, especially since most encounters don’t let you rest.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

“Faster Dasher” and “Hit and Run” are highly recommended, as one reduces the cooldown between dashes and the other restores both dashes whenever you Glory Kill an enemy.

Ice Grenade is your best friend

The Ice Grenade is an incredible way to immobilize enemies and remove them from an encounter for a short time. I highly recommend going for all four Ice Grenade upgrades, but “Ice Bite” should definitely be your first purchase. With this upgrade, frozen enemies take more damage, providing an easy way to burn through larger demons.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

Afterwards, go for “Ice Drops,” as it’ll make frozen enemies drop health pickups. For maximum efficiency, couple it with Flame Belch and Blood Punch on a large group of enemies to collect dozens of Health and Armor drops. The other two Ice Grenade upgrades can be done in any order, as they both increase the efficiency of the gadget in different ways.

Frequently chainsaw enemies

This may seem obvious, but don’t forget it: Chainsawing enemies is an incredible source of ammunition. Minor demons will never stop spawning in an encounter, so there will always be something to Chainsaw, Glory Kill and Flame Belch. 

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

If you have no ammo for some of your best guns, you’re essentially a fish out of water. Even with half of your total bullets to spare, it’s still a good idea to chainsaw a lesser demon. It’s better to be over prepared for an encounter than get trapped with no ammo.

You can use three chainsaw fuel notches to cut through larger enemies, but this is not recommended, as it won't cause them to drop additional ammo. Furthermore, there’s rarely enough chainsaw fuel in an arena for this to be a viable option.

Try different weapons

If you find yourself dying over and over, it might be a good idea to swap weapons or mods.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

Certain enemies have built-in weaknesses, for example, the Doom Hunter is susceptible to the Plasma Rifle while the Marauder is best fought with the Super Shotgun or Ballista. Furthermore, the Combat Shotgun’s Sticky Bombs are great for large groups of enemies and Cacodemons, while its Full Auto mode can tear through bigger enemies.

When you acquire the Chaingun, it possesses a weapon mod that lets you project an Energy Shield while firing. This is my favorite weapon in the game because you can burn through enemies while protecting yourself from incoming damage. If you’re having trouble with a specific encounter, I highly recommend utilizing it to push through.

Grab Sentinel Crystals first

You’ll find a handful of Sentinel Batteries throughout Doom Eternal that let you unlock different portions of the Fortress of Doom.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

Try using your first batch to unlock the Sentinel Crystals on the ship, as this will give you access to permanent stat boosts. You can use the Sentinel Crystals to upgrade your Health, Armor or Ammo. Additionally, they come with important bonuses, like Quickdraw Belch, which reduces the cooldown between Flame Belch uses.

Defeating the Marauder

The Marauder is the most daunting enemy in Doom Eternal and fighting him can be confusing because the tooltip is slightly incorrect about how to defeat him. You’ll want to stay at a medium range. Getting in too close will cause him to blast you back with a shotgun and going too far will result in him launching his ranged axe attack. Maintain a distance equivalent to about a dash away from him and have your fingers ready.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

Once he launches his ranged attack, dash to the side and his eyes will glow green as he comes in for an axe strike. Then blast him back with your Super Shotgun, and, once he’s stunned, continue pelting him or swap to the Ballista to get some extra damage in. 

However, even when his eyes glow green and he comes in for the axe attack, you should still be prepared to dash away. Hitting him with the Super Shotgun will stun him most of the time, but this is not guaranteed. As a safety measure, shoot him when his eyes glow green and immediately dash away just in case. If you’ve successfully stunned him, you can quickly dash back in and continue to fire.

Be careful dashing backward

As you go through frantic motions and run in every direction, it’s always a good idea to avoid dashing backward.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

Many of Doom Eternal’s enemies only need to be close for a second to launch a melee attack, and dashing backward into unknown territory guarantees that you’ll get swiped by something. Considering these enemies have the capability to remove half of your health with one hit, it’s best to be very careful.

Acquire Saving Throw immediately

When you find your first Rune, it’s a good idea to pick up Saving Throw.

10 essential Doom Eternal tips for surviving Nightmare

(Image credit: id Software)

This will give you the opportunity to survive a blow that would’ve otherwise killed you. Enemy attacks on Nightmare difficulty kill you in two or three shots, so this is necessary for increasing survivability. 

However, be warned: Bonus lives will activate before Saving Throw does.