Reckoning is the 22nd chapter in Doom: The Dark Ages and contains 21 collectible locations & 335 Gold & 2 mission challenges. This walkthrough will guide you to all the Reckoning collectibles in Doom The Dark Ages. If you missed anything you can get it via chapter select. Everything needed for 100% completion is included.
- Gold: 335
- Ruby: 3
- Wraithstone: 1
- Demonic Essence – Ammo: 1
- Secrets: 11
- Codex Entries: 1
- Collectible Toys: 2
- Challenges: 2
Mission Challenge #1 – Death Clock: Kill 2 Cosmic Baron demons within 5 seconds of each other. (Reverent – Pulverizer skin reward)
Cosmic Barons are the big demons with slicing arms that deal fast melee attacks. This challenge is covered as part of the collectible guide where it appears. Keep 1 crossbow ammo so you can instakill two of them close together.
Mission Challenge #2 – Thy Flesh Consumed: Kill 25 demons within 10 seconds. (100 Gold)
You will get this automatically by following the guide. In the first combat encounter you can shoot the crossbow to kill 25 enemies instantly. Alternatively, it can be done in the encounter where you get the final demonic essence. Just save up 1 crossbow ammo for this.
All collectibles in this mission are listed in chronological order.
Codex Entry #1 (Marok)
From the start of the chapter, move forward and shieldbash through the first wall, then jump down the ledge, and you’ll see the codex to your right.
Challenge: Thy Flesh Consumed
From the Codex drop down to the first red combat encounter. Use the crossbow (press 
/ 
to equip) and shoot it into the first wave of enemies to kill 25 with one shot. Alternatively, you can do this later during the red encounter where you get the final demonic essence (last collectible in this chapter).
Secret #1
Drop down to the first red enemy encounter, defeat all enemies. To the left of where you dropped down is a life sigil that counts as a secret.
5 Gold (5/335)
Continue with the story objectives until you shieldbashed a cube. After climbing the cube and the next wall, you drop into the gold automatically, can’t miss it.
Secret #2 + 50 Gold (55/335)
After picking up the blue skull, don’t jump down behind it, instead, turn around and go left. You will find a hole in the ground and a jump pad at the bottom. Jump onto it to be catapulted up. In front of where you land will be armor pickups and a blue breakable wall, shieldbash through it to find this.
Secret #3 + Ruby #1
Turn around and follow the path opposite the previous gold chest, drop down at the end to land in a secret area with the ruby.
Challenge: Death Clock + Collectible Toy #1 (The Old One)
Go back to where you picked up the blue skull and open the blue gate with it, then drop down. Turn around immediately and walk through the entrance to reach the second red enemy encounter. Shieldbash the demon arm to start the encounter.
For the challenge, you have to kill the “Cosmic Baron” enemy twice within 5 seconds, it’s the big enemy type that uses its slicing arms for fast melee attacks. Keep the first one that spawns alive and wait for the second one to spawn, shoot the crossbow to instakill both of them. This will instantly unlock 
Challenge Completed if you did all mission challenges so far. After the encounter, you can pick up the toy.
6 Gold (61/335) + 4 Gold (65/335)
Continue with the story until you have to interact with a switch to open a door, then go into the next area and a line of 6 gold will be on the main path, can’t miss it. Then go to the end of the path where a Mancubus breaks through the wall, here is another 4 gold.
6 Gold (71/335)
Continue with the story, after pushing a block to climb up a wall you will automatically walk through the gold.
16 Gold (87/335)
After the previous gold, follow the path and drop down the hole. The gold will be in front of you.
Secret #4 + 50 Gold (137/335)
Continue with the story until you throw a shield at a blue symbol to open a gate. After going through this gate, go straight forward and shieldbash through the blue wall in the right corner near the exit.
5 Gold (142/335) + 5 Gold (147/335)
After the next red enemy encounter, you will enter a building again. As soon as you enter it, turn right to find the first 5 pieces of gold. Then move forward, a Mancubus will break through a wall. Behind that wall you find another 5 gold.
Secret #5 + 50 Gold (197/335) + 5 Gold (202/335) + Secret #6 + Ruby #2
From the previous gold turn around and go to the left corner. You will find a wall that you must shield bash. Now throw your shield at the blue symbol and to your right a wall will come up that you need to climb.
Follow the path around the corner to find the gold chest. Now turn left and continue on the path. Soon after you climb up another wall, you will find 5 pieces of gold on the path. Throw your shield at the blue symbol and climb up the wall. Turn around, get your shield back, and climb up another wall, and you will find the secret area and the ruby.
6 Gold (208/335) + Secret Key
Continue with the story, you will use an elevator to get to the next area. After the elevator ride, turn around to see the gold and the key (opposite a Sentinel Shrine).
Secret #7 + 37 Gold (245/335) + Collectible Toy #1 (Ahzrak)
After you picked up the key, use the purple door directly in front of it and move forward until you drop down to the area where the very first big enemy encounter was. Turn left and you will see a closed gate which you can now open with the key. On the left will be 5 gold, then drop down the hole to find the collectible toy and 4 stacks of gold in each corner of the room.
Secret #8 + 24 Gold (269/335) + Ruby #3
Go back to the first encounter area and turn left as soon as you enter it. Move forward, and you will see another gate that you can open with the purple key. The gold and the ruby are behind it.
Secret #9 + 16 Gold (285/335)
From the previous collectible, leave the secret area and move straight forward until you can’t go further (walk past the right side of a climbable wall). After walking through a broken building, turn left and move forward. On the left side, you will see an opening in the wall and a gate that you can open with the secret key. Behind that is the gold.
Secret #10 + Wraithstone #1
Backtrack to the labyrinth where the third enemy encounter was. Right next to where 16 Gold (87/335) was you can open a gate with the secret key, and you can now pick up the Wraithstone. You should already have the Wraithstone marked on the map from earlier, just head in that direction from the first enemy encounter area and you can drop down to it from there.
Secret #11 + 50 Gold (335/335)
From the wraithstone, turn around and take the right exit. Go straight forward until you reach a crossing. To the left you will find another gate to open with the secret key. The gold is behind the gate.
Demonic Essence – Ammo #1
Continue with the story to the next red enemy encounter. You will get the last demonic essence as an automatic reward from the leader in this encounter. This will unlock 
Essential Ammo + Essentially Unstoppable.
That’s 100% of the collectibles you can find in Reckoning of Doom: The Dark Ages.
For all other Chapters, check out the complete Doom: The Dark Ages Collectibles Guide.
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