DOOM: The Dark Ages gives players a lot more room to explore than past entries, and with that extra room comes a lot of secrets and collectibles to uncover. There are a total of 9 secrets to find in the Hebeth level of the game,

The Dark Ages 100% completion guide and interactive map covers the 22 Chapters of the 2025 Doom series prequel so you don't miss a thing. IGN has tried and tested every Secret route and Challenge requirement and we've laid them out in a logical order so you can cruise through Doom: The Dark Ages with our guide in hand and not miss a thing.

The upgrade system in Doom: The Dark Ages splits between attribute upgrades and equipment upgrades. For the former, you need to acquire Demonic Essence and they raise your Ammo capacity, Health, and Armor. On the other hand, the latter involves visiting Sentinel Shrines and spending resources to make your favorite pieces of equipment stronger.