Where to Find the Last Collectible in Resurrection & Secret in Chapter 20 of DOOM: The Dark Ages
Missing one collectible and one secret in Chapter 20 of DOOM: The Dark Ages? Here’s how to find the final codex entry and unlock full completion before wrapping up the mission.
Chapter 20 of DOOM: The Dark Ages is absolutely packed with collectibles, challenges, and secret areas—more than any other chapter in the game. Most of the level takes place in Darkveil Forest, where you’ll be fighting off Ahrzak’s forces and dismantling siege towers to relieve pressure on the Sentinels. Once all three towers are destroyed, the Slayer’s dragon will show up to carry you to the next objective—a clear point of no return.
If you’re aiming for 100% completion and find yourself missing just one last collectible and secret, don’t worry—it’s not bugged, and it’s not hidden in the forest. You’ll find both after you mount the dragon.
Where to Find the Final Collectible in Chapter 20
- Mount the Slayer’s dragon after completing the siege tower objectives.
- You’ll be flown to Bishop Kreed’s ship.
- Before heading inside as prompted, turn around.
- Walk to the very back of the ship.
There, you’ll find the final secret area and the last collectible: the Commander Valen codex entry.
This sneaky placement often throws players off, since most assume all collectibles must be found before leaving Darkveil Forest. But nope—this one waits for you after the dragon ride.
Chapter 20 100% Completion Checklist
To fully complete the chapter, here’s everything you’ll need to collect and do:
- 🪙 Gold: 392 pieces
- 💎 Rubies: 3
- 🧱 Wraithstone: 1
- ❤️ Demonic Essence – Health: 1
- 🛡️ Demonic Essence – Armor: 1
- 💥 Demonic Essence – Ammo: 1
- 🧩 Secrets: 12
- 📜 Codex Entries: 2
- 🧸 Collectible Toys: 2
- 🎭 Skins: 1
And don’t forget to complete these challenges:
- Cannon Crusher
- Extreme Prejudice
- Master Hunter (Only becomes possible after mounting the dragon)
Final Tip
If you’re still missing anything, double-check the forest area before boarding the dragon. Once you leave, you can’t go back. And remember: the final secret and collectible always come after the dragon ride—so if you’re one short on both, that’s where to look.
Good luck finishing off Chapter 20 with that sweet 100%!
Related Article:
- How to Open the Lava Door
- How to Get Past the Teeth
- All Codex Entry Locations
- All Toy Collectible Locations
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