Final Sin is the 13th and final mission in Doom Eternal and contains 5 collectible locations (1 Codex pages, 4 Extra Lives). This walkthrough will guide you to all Final Sin collectibles in Doom Eternal. If you missed something you can get it via mission select.
- Codex Pages: 1
- Extra Lives: 4
All collectibles in this chapter are listed in chronological order. If you miss anything you can use fast travel when it unlocks at the end of the mission to go back everywhere.
Extra Life #1 – Around the first corner there is a wall you can break, then climb up into a vent and on the other side find this pickup.
Automap Station – Immediately after the first combat encounter.
Extra Life #2 – In the next building you jump to, stay on the lowest level and jump to the left where the Soldier is standing to find a breakable wall. Climb up the vent to find this pickup.
Extra Life #3 – Instead of climbing the elevator to progress, shoot the button inside the one to the left. Then climb the normal elevator, and in the one beside it you can now enter a vent and grab this pickup.
Codex (Final Sin) – In the building with the second combat encounter, on the second floor as you progress.
Extra Life #4 – In the building with the fourth combat encounter, before progressing up to the top for the fifth, go around the back of the gore covered room on the 4th floor of this building to find a breakable wall, after which you can drop down and grab this pickup.
That’s 100% of the collectibles you can find in Final Sin of Doom Eternal.
For all other Missions, check out the complete Doom Eternal Collectibles Guide.