DOOM Eternal

DOOM Eternal

50 Achievements

59-72h

Steam
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King of the Crystals

King of the Crystals

Fully upgrade Health, Armor, or Ammo in a single save slot

36.5%

How to unlock the King of the Crystals achievement in DOOM Eternal - Definitive Guide

Hey Gamers! Welcome to DOOM Eternal!! I am working on a 100% Achievement Campaign playthrough that will get you all collectible achievements in a single playthrough. I show ALL collectible locations, encounters, go over the challenges, and slayer keys/gates.

Before you start be sure you select Extra Life mode so we can get the achievement for finishing that with more than 10 lives (Guide shows all Extra Life locations as well!).

Of note, nothing is missable you can replay missions to get anything you missed, and also you will be given the option at the end of levels to warp to specific sections to grab anything you missed which can alleviate having to play the entire mission again. Every collectible and item will be time stamped in the video comments and description!

**IF you are following my guide to get all campaign related achievements in one playthrough then MISSION SELECT IS NOT AVAILABLE IN EXTRA LIFE MODE. So if you miss a collectible be sure to use the Fast Travel Function near the end of levels to grab anything you missed!!**

**This particular achievement is tied to finding the Sentinel Crystals, which are timestamped in the videos if you just need those. The achievement will unlock upon fully upgrading either health, armor, or ammo (I prefer health and ammo first, but what you decide to upgrade is dependent on your play style. You will eventually have enough crystals to fully upgrade all of them.**

I hope you find it helpful!

-Damron Out

The Fortress of Doom


Mission 1 - Hell on Earth:


Mission 2 - Exultia:


Mission 3 - Cultist Base:


Mission 4 - Doom Hunter Base:


Mission 5 - Super Gore Nest:


Mission 6 - Arc Complex:


Mission 7 - Mars Core:


Mission 8 - Sentinel Prime:


Mission 9 - Taras Nabad:


Mission 10 - Nekravol:


Mission 11 - Nekravol – Part II:


Mission 12 - Urdak:


Mission 13 - Final Sin:


**Please leave a comment on how to improve if you feel the need to leave a negative vote! Feedback is appreciated!**
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21 Mar 2020 19:03

6 Comments
Expound a little on upgrading.
Should we focus only on 1, or will we eventually earn 16 sentinels to unlock all HEALTH, AMMO & ARMOR upgrades?
Which should we focus on first?
Which should we max out first?
Does difficulty matter?
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By E vee dub on 08 Mar 2021 20:43
You will eventually upgrade all. Difficulty does not matter. I personally upgraded all kind of evenly during my playthrough, but it’s completely dependent on your own play style. I personally prefer health and ammo over armor as armor depletes fast anyway
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By xxDAMRONxx on 09 Mar 2021 12:47
I maxed AMMO first because I was always running out while working on the perk missions per weapon i.e. Hit 3 enemies with one missile barrage 15 times.
I'll work on HEALTH next, thanks to your comment. Now I'll give a thumbs up for your guide for this achievement.
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By E vee dub on 11 Mar 2021 10:22
I’m working on this achievement (along with a few others)
Just wanted to say thank you for the guide, I’m short on time to play, so the time & effort you put into making this guide IS very much appreciated.
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By WarningRabbit95 on 19 Aug 2021 13:39
Appreciate it!
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By xxDAMRONxx on 19 Aug 2021 13:46
I forget why I downvoted this originally, but the fact that you care enough about this solution to continue updating it a year-and-a-half later gets you a reversal to a thumbs up.
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By Frankie DrumsNY on 21 Oct 2021 12:58
View all 6 comments Show less comments

Throughout the game you will find Crystals, one of which is found in the Fortress of DOOM near the beginning of the game and it is a mission objective to collect it, to show you what they are. Each of these will allow you to upgrade either your Health, Armor or Ammo by 1. Each of these has 4 total upgrades, so for this achievement you will need to collect a minimum of 4 Crystals and concentrate on upgrading the same thing, however there are enough Crystals to fully upgrade everything and when searching for this games many collectibles, these will be found along the way.

See the description for "Gunpletionist" for a video of all the games collectibles in every level, including the Crystal locations.

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Throughout the game you will find Crystals, one of which is found in the Fortress of DOOM near the beginning of the game and it is a mission objective to collect it, to show you what they are. Each of these will allow you to upgrade either your Health, Armor or Ammo by 1. Each of these has 4 total upgrades, so for this achievement you will need to collect a minimum of 4 Crystals and concentrate on upgrading the same thing, however there are enough Crystals to fully upgrade everything and when searching for this games many collectibles, these will be found along the way.

See the description for "Gunpletionist" for a video of all the games collectibles in every level, including the Crystal locations.
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Video guide for each level separately. Each video will show you how to assemble everything completely! Cheat codes, codes, mod bots, Doom keys, Doom Gates, Praetorian armor module upgrades, crystals, guard batteries, etc.
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20 Mar 2020 09:04

Video guide for collecting all collectible items.
By collecting them you can level up to 100%.

To achieve this you need to find all Guardian Crystals.
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21 Mar 2020 02:22

1 Comment
You don't need all the crystals for the trophy - you just need to pump one characteristic to the maximum. That is, 4 crystals are enough.
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By Quadro on 02 Aug 2021 08:08