DOOM Eternal – 100% Achievement Guide

 

Introduction

Hello everyone.

Welcome to another of my 100% achievement guides.
As planned, I will continue from the previous DOOM and do my best to help everyone with achievements once again.
I will add new sections for DLC achievements as they release and keep you updated in the comments.

Please feel free to offer feedback and comments, good or bad, to improve the guide; likes are much appreciated.

Thank you all!

 

Campaign Achievements Part 1.

Darn It; They keep BREAKING.

Perform 33 Unique Glory Kills in a single save slot
You should naturally gain this achievement as you play through the campaign; if for some reason you don’t, then replay a mission or two and go glory kill-crazy.

Crystal Craving

Upgrade Health, Armor, or Ammo
To upgrade each of these categories, you will need Sentinel Crystals; you will gain your first sentinel crystal on Mission 1: Hell on Earth, then simply put your point/s into one of the three categories.

Doomsday

Complete Hell on Earth
This is part of the campaign and cannot be missed; you will gain this achievement when you complete the first mission, Hell on Earth.

Bonus Stage

Complete a Slayer Gate
You will come across your first Slayer Gate on MIssion 2: Exultia; you will need to find the key to access the slayer gate, which is usually hidden nearby.
Once you have the key, you can enter and activate the hive, which will take you to an arena for a big battle with demons.

There are 6 slayer gates in total, and you will find them within the following missions:

• Exultia
• Cultist Base.
• Super Gore Nest.
• Arc Complex.
• Mars Core.
• Taras Nabad

It’s a Magic Number

Kill 666 Demons.
Simply kill 666 demons throughout the entire campaign; you should gain this naturally before you complete the campaign.

The Hunters Became the Hunted

Kill the Doom Hunters
Kill all the Doom Hunters on Mission 4: Doom Hunter Base, there are 3 in total, and you cannot miss these. You can use the plasma rifle to drop their shield and then lock on the rocket launcher to finish them off.

This One’s my Favorite

Complete a Praetor Suit Perk category in a single save slot.
For this achievement, you will need to gain Praetor Suit Points to use in Perks, then use those points to fill one category. I started with the environment at the top in purple.
To gain points, you can complete mission challenges, find secrets/collectibles, and by using Sentinel Batteries in The Fortress of Doom.
Remember, you can replay a mission to continue progress towards any points.

Extra Extra Lives

Pick up 20 Extra Lives Total in a single save slot.
You will find extra lives throughout the campaign; they are small green helmets with 1up above them and are usually hidden as secrets; you should be able to gain more than 20 as you play through the campaign and explore a little if not just replay any missions to gain any that you may have missed.
You can still lose lives no problem, and any already collected will still count towards the overall number.

Homemaykr

Spend 8 Sentinel Batteries in the Fortress of Doom in a single save slot
You can find Sentinel Batteries throughout the campaign and also gain them as challenge rewards. Once you have them, you can head into The Fortress of Doom and insert them into the slots next to the locked rooms to open them; use 8 of them in your campaign to gain this achievement.

Interplanetary Fracking

Blow a hole in Mars
This is part of the campaign and cannot be missed; you will gain this achievement on Mission 7: Mars Core.

Thumbs Down

Best the Gladiator in the Colosseum
This is part of the campaign and cannot be missed; you will need to kill the Gladiator boss on Mission 8: Sentinel Prime.

King of the Crystals

Fully upgrade Health, Armor, or Ammo in a single save slot.
Each time you obtain a Sentinel, Crystal puts the points into Health, Armor, and Ammo only; you will need a total of 12, but if you find all secrets, etc., you will max everything out anyway.

Reforged and Refueled

Acquire a new Crucible in Taras Nobad
This is part of the campaign and cannot be missed; you will acquire the Crucible at the end of Mission 9: Taras Nabad.

Nontraditionalist

Kill the Khan Makyr
This is part of the campaign and cannot be missed; you will need to kill the Khan Maykr boss on Mission 12: Urdak.

Breaker of Gates

Complete all Slayer Gates in a single save slot
There are 6 slayer gates in total throughout the campaign; you do not have to complete these during your first run, so feel free to finish the campaign and return to the slayer gates another time when you have upgraded and are stronger in battle.

You will find the slayer gates within the following missions:

• Exultia
• Cultist Base.
• Super Gore Nest.
• Arc Complex.
• Mars Core.
• Taras Nabad.

The Once and Future Slayer

Complete the Campaign on any difficulty
As the title says, finish the campaign.

Campaign Achievements Part 2.

Meet Your Unmaykr

Acquire the Unmakyr
For this, you will first need to complete all 6 slayer gates; each gate complete will reward you with 1 of 6 keys.
Once you have all 6 keys, take them to The Fortress of Doom and insert them into the device that holds the special weapon known as Demaykr, which will give you this achievement and the special weapon.

Iconoclast

Kill the Icon of Sin
This is part of the campaign and cannot be missed; you will need to kill the final boss of the campaign on Mission 13: Final Sin.

They’re ALL My Favorite

Purchase all Praetor Suit Perks in a single save slot
To gain points, complete Mission Challenges, find Secrets/Collectables, and by using Sentinel Batteries in The Fortress of Doom to unlock them.
Just like the previous DOOM, you will gain more than enough points for this by the time you finish the campaign, but if you want to find all hidden items, it’s best to use a guide.

Treasure Hunter

Beat all encounters and mission challenges, and find all Items in Taras Nabad in a single save slot
Taras Nabad is mission 9; you will need to find all the hidden items and clear up all encounters and challenges and then complete the mission. You could replay the mission and/or fast travel at the end to get everything that you need if anything was missed.
You can either follow a guide or purchase the upgrade on the praetor suit to help find hidden items.

I will link my guide here, showing the locations of all items/collectibles, etc., to help with this achievement.

If Only I Could Read…

Collect all physical Codex pages in a single save slot
As you play through the campaign, you will come across Codex Pages that look like burning pieces of paper floating in the air; collect them all for this achievement; there should be a total of 54.
You can either follow a guide or purchase the upgrade on the praetor suit to help find hidden items.

I will link my guide here, showing the locations of all items/collectibles, etc., to help with this achievement.

Reforged the Genie Lamp

Complete the cheat code collection in a single save slot
Find all the Floppy Disks located throughout the campaign.
You can either follow a guide or purchase the upgrade on the praetor suit to help find hidden items.

I will link my guide here, showing the locations of all items/collectibles,s, etc., to help with this achievement.

Metal Head

Complete the album collection in a single save slot
Find all the Vinyl Albums located throughout the campaign.
You can either follow a guide or purchase the upgrade on the praetor suit to help find hidden items.

I will link my guide here, showing all items/collectibles’ locations to help with this achievement.

Playset Sold Separately

Complete the toy collection in a single save slot
Find all the Doom Toys located throughout the campaign.
You can either follow a guide or purchase the upgrade on the praetor suit to help find hidden items.

I will link my guide here, showing all items/collectibles’ locations to help with this achievement.

Gunpletionist

Master all Weapon Mods in a single save slot
WARNING: This achievement is buggy and might not pop for everyone, try and complete it without using the cheat codes (see comments).

Just like the previous DOOM, you will need to fully upgrade each of the two mods for each weapon using weapon points, then complete each mod challenge to gain mastery. Once you have completed all guns, you will gain this achievement.

Master of Fasting

Complete a Mission with only the Famine Mode cheat on
First, find the famine cheat code located on Mission 10: Nekravol.
Then replay any mission with the famine cheat code activated. The first mission is the easiest and can be done in 15mins or less.

Running Up the High Score

NOTE: You cannot replay missions in this mode to farm extra lives.

Complete Extra Life Mode with 10 Extra Lives in your Inventory
This is easy but time-consuming. Start a new save and choose extra life mode, then choose the easiest difficulty unless you like a challenge.
As you play through the campaign, pick up the 1up extra lives, and you should end the game with more than enough.
If you follow a guide to find the locations of the 1up extra lives or know the locations already, you should easily finish with over 30 lives left.

Battlemode Achievements

NOTE: You can track all progress milestones; just go to campaign>save slot>milestones>battlemode.

Mix and Match

Play as 5 different Player Demons in BATTLE MODE
As the title says, play as each of the 5 demons in battle mode in no specific order. Win, lose, or draw.

Fight Like Hell

Do 5000 damage as a Player Demon in BATTLE MODE
Spend some time playing as a demon in battle mode and deal 5000 damage overall; this does not have to be in a single match, so have fun, and this achievement will eventually pop.
Depending on your opponent and how good you are, you can average at least 150-250 per match.

Man vs. Monsters

Play 25 BATTLE MODE matches
Straight forward to understand, play 25 matches in battle mode as the title says.

Blood Bath

Kill 200 opponents in BATTLE MODE
This will take time to complete if you play naturally as demon and slayer, possibly 100+ matches.
The best way to do this if you’re purely after the kills are to play as a slayer and keep one demon alive whilst continuously killing the other. If you talk to the players in chat, you could help each other get this done.

Weapons Expert

Kill a Player Demon with each of the 8 Slayer weapons in BATTLE MODE
Use each of the weapons below to kill at least 1 player demon; this does not have to be in a single match.
It’s best to lower their health first and then finish them off with the required gun; the most difficult is the BFG as you will need to choose it as an upgrade at the end of a round if it becomes an option.
If all else fails, just ask in-game chat and see if one of them will help you out and give you the kill/s.

• Combat Shotgun – Use sticky bombs mod.
• Heavy Cannon
• Plasma Rifle
• Rocket Launcher – Use lock-on burst mod.
• Super Shotgun
• Ballista – Use arbalest mod.
• Chaingun
• BFG-9000

Truce between Demons

Heal yourself or your teammate for 50000 health in BATTLE MODE
You will need to do this as a demon only; use your demon ability to place a healing zone on the ground for you and your teammate to stand in and heal for 100 per second. It lasts about 8 seconds, and you will need to wait for the cooldown timer to use it again.

Thank you for taking the time to read my 100% achievements guide, please add any comments or feedback, and I will do my best to reply and fix/update the guide accordingly.

Campaign DLC – The Ancient Gods: Part One

Torrential Pain

Complete the UAC Atlantica Facility
This is the first mission; complete it to gain this achievement.

To Take a Life Sphere

Destroy the Life Sphere in the Blood Swamps
Complete Mission 2: The Blood Swamps to earn this achievement.

Regime Change

Defeat Samur in the Holt
You will earn this achievement when killing the final boss on Mission 3: The Holt.

Lucky Charm Bracelet

Acquire all Support Runes in a single save slot
There is a support rune on each mission.

• Mission 1: Complete the slayer gate
• Mission 2: After killing the giant tentacle initially, jump across and take a left, and just past the flames is a wall you can break through that will take you to the rune.
• Mission 3: Complete the slayer gate

Hypersonic

Complete all Secret Encounters in a single save slot
There are 2 on each mission; if you don’t do them on your first playthrough, you can replay the missions and complete these, providing they are on the same save slot.

Required Reading

Collect all physical Codex pages in a single save slot
There are many to collect throughout the campaign DLC; I will be updating my locations to show all locations and link it here to help you get them all.

1-Upsmanship

Complete Extra Life Mode with 5 Extra Lives in your Inventory
Start a new save on extra life mode and run through it on easy whilst collecting extra lives; you can use my locations guide to find out where all the extra lives are located if you’re not sure.

This is all about DOOM Eternal – 100% Achievement Guide; I hope you enjoy reading the Guide! If you feel like we should add more information or we forget/mistake, please let us know via commenting below, and thanks! See you soon!