Doom: The Dark Ages Chapter 1 – Secret Key & Door Location in Khalim Village

Find the hidden Secret Key in Chapter 1 of Doom: The Dark Ages and unlock the secret door to grab a Life Sigil in the Village of Khalim.

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Chapter 1 Secret Key Location – Doom: The Dark Ages (Khalim Village)

Doom: The Dark Ages doesn’t waste any time throwing secrets at you, and Chapter 1 sets the tone with its first hidden key and secret door. If you’re taking your time and exploring thoroughly in Khalim Village, there’s a Secret Key tucked away early in the chapter—and unlocking the nearby door nets you a Life Sigil, one of the most valuable collectibles in the game.

Here’s how to find it.

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🗝️ How to Find the Secret Key in Chapter 1 (Khalim Village)

1. Progress through the main objective until you reach the gate that requires the Blue Key.
   
2. After grabbing the Blue Key and moving forward, you’ll enter a sandbox-style open area—this is where most of the level’s secrets are located.
   
3. Head to the far left of the area and look for a jump pad on a ledge. Use it to launch yourself into the upper-left section of the map.
   
4. You’ll arrive at an area where you get the Shredder weapon. Defeat the enemies here to unlock new paths.
   
5. Go through the arch on the right, then follow the left path uphill, marked by armor pickups.
   
6. Close the Demonic Portal in this area.
   
7. After that, cross the wooden bridge nearby—you’ll spot the purple-glowing Secret Key waiting for you at the end.
   

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🚪 Where to Use the Secret Key in Chapter 1

With the key in hand, it’s time to cash in:

1. Drop back down the cliff and head toward the doorway ahead.
   
2. In the tunnel, you’ll have to deal with a small demon ambush. Clear them out to unlock the next area.
   
3. Exit the tunnel, follow the armor-lined path, and head back toward the main combat area with the Demonic Portal.
   
4. Look to the left—you’ll see a caged door with a purple lock. That’s your destination.
   
5. Approach it, and it’ll automatically unlock with the key, revealing a Life Sigil inside.
   

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💡 Why It Matters

Life Sigils are basically extra lives in Doom: The Dark Ages. Grab one, and if you die, you’ll respawn on the spot instead of restarting a checkpoint. Super handy—especially later on when things really ramp up.

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So if you’re playing Chapter 1 and worried you might’ve missed something important, now you know where to look. The secret key and Life Sigil are a solid reward for those who explore early—and there’s a lot more of this kind of stuff in the chapters to come.

Related Article: 

• How to Get Past the Teeth Door in DOOM: The Dark Ages (Chapter 18 Secret Guide)
• How to Open the Lava Door in DOOM: The Dark Ages (Chapter 2 Secret Area Guide)
• All Codex Entry Locations in DOOM: The Dark Ages (Complete Lore Guide)

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