Explore every hidden corner of Chapter 4: Sentinel Barracks in Doom: The Dark Ages with this complete guide. From secret areas and toys to gold, rubies, and unlockable items, we’ll help you uncover all collectibles for full completion and maximum rewards. Let the hunt begin!
Chapter 4 Sentinel Barracks
All the Secret Areas and Collectible locations in Chapter 4:
Secret Area 1 & Hell Knight (Toy)
22 Gold (22/212)
Once the first Mancubus in the level has been killed, proceed inside and ignore the path to the left that leads down to some gold. Look left to see three gold and a wall that you can smash through. Enter here to get the gold and the toy, and then use the door that opened when you smashed through the wall to collect the gold on the stairs you previously ignored.
Secret Area 2
58 Gold (80/212)
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Go left to locate a green statue that you may hurl your shield at to jump up and get five gold here. Continue on the story path until you reach the green button on the floor. The secret location with three gold chests can then be found by dropping to the left of the gold, charging into the giant container, and climbing atop the crate.
4 Gold (84/212)
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When you stand on the green button and open the door in front of you, climb up the wall and descend into another room, you will see four gold coins directly in front of you.
Secret Area 3
27 Gold (111/212)
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After you’ve defeated the various hell knights and reached a corridor with exploding red barrels, you’ll notice a button on the left that you can press to open a door. Enter, retrieve three gold coins, and then ascend the wall to obtain three more. Turn right, ascend another wall, turn the corner for five more gold, enter the hidden section through the door, and you will find 16 more gold and a life symbol.
Ruby 1
You can’t miss the automatic pickup from plot advancement.
Secret Area 4
5 Gold (116/212)
To uncover the secret and a life symbol at the end, look down and to the left at the fallen bridge. Jump down here, gather the gold, climb the wall, and follow the path up another two walls.
Demonic Essence: Armor
Automatically obtained by defeating the Mancubus leader in the combat encounter at the other end of the broken bridge, it will spawn near the end of the fight.
Secret Area 5
20 Gold (136/212) & Ruby 2
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After you pass the next broken bridge, turn around and notice a place where you can drop down. Kill the enemies in the room, climb the walls at the end to locate the Ruby ahead, then climb up and to the right to collect eight gold. The final 8 gold can be found at the top of the 4 gold that leads to another climbable wall to the left of the ruby.
50 Gold (186/212)
Continue up the stairs on the right to a room with a chest holding 50 gold after crossing the previously mentioned broken bridge.
Secret Area 6 & Accelerator – Nightmare
The secret and weapon skin may be found on the higher platform, which is reached by a set of five-gold stairs to the right of the flaming tree.
Codex 1 (Sentinel Barracks) & 21 Gold (212/212)
Two bundles of gold are located on the left in this region; shoot the cages to disclose them. To find the codex page and five gold, turn around and proceed down the ramp toward the large gate, looking left at the bottom.
