In Doom: The Dark Ages, Secret Keys are a must from the get-go, unlocking doors to hidden goodies. Eight chapters have these keys, each opening up areas you’d otherwise miss. Tracking them down can be a pain, pulling you away from demon-slaying action. Here’s where to find every Secret Key in Doom: The Dark Ages so you can grab them without a hitch.

Village of Khalim Secret Key (Chapter 1)

Village Of Khalim Secret Key Location In Doom The

The first Secret Key is in Chapter 1, Village of Khalim. It’s straightforward—just stick to the main story path until you’re close to the spot shown on the map. Take a turn around the corner heading up the mountain, and the key’s right there.

Siege Part 1 Secret Key (Chapter 6)

Siege Part 1 Secret Key Location In Doom The Dark

You’ll find the next Secret Key in Chapter 6, Siege Part 1. It’s a simple grab: head to the map location provided, and pick it up. No puzzles or extra steps needed.

Siege Part 2 Secret Key (Chapter 7)

Siege Part 2 Secret Key In Location Doom The Dark

Chapter 7, Siege Part 2, has a trickier Secret Key. Follow the main story to the second floor, and keep an eye out for a breakable wall near an open balcony. Smash it to enter a hidden area. Keep going until you hit a jump booster—it’ll launch you to the Secret Key. This key unlocks Rubies in the chapter.

Ancestral Forge Secret Key (Chapter 9)

Ancestral Forge Secret Key Location

In Chapter 9, Ancestral Forge, the Secret Key is easy to snag. Just go to the map spot and pick it up off the ground. No extra effort required.

The Forsaken Plains Secret Key (Chapter 10)

The Forsaken Plains Secret Key Location In Doom Th

The Secret Key in The Forsaken Plains is near the mission’s start, locked behind a door. To get it, use the Shield Recall ability to climb the building from the left, then look for a big hole in the ground. Drop down to grab the Chapter 10 key.

Sentinel Command Station Secret Key (Chapter 12)

Secret Key Location In Sentinel Command Station Do

Chapter 12, Sentinel Command, has a tougher Secret Key to find. Navigate the room’s small paths, climb through the vents past the Life Sigil, and enter the key’s room. You’ll need to clear out all enemies before you can claim it.

Temple of Lomarith Secret Key (Chapter 17)

Secret Key Location In Temple Of Lomarith

The Secret Key in Temple of Lomarith (Chapter 17) is simple but shows up near the end. When you reach the final area where the key’s used to enter the temple, find a giant ship in one of the map’s corners. Board it, take out the enemies, and head to the door at the end—it opens automatically after the fight, and the key’s inside.

Reckoning Secret Key (Chapter 22)

Secret Key Location In Reckoning Doom The Dark Age

The last Secret Key is in Chapter 22, Reckoning. Follow the main quest until you hit an elevator leading to Ahzak’s ship boarding area. Instead of moving forward, look back near the gate to spot the key.