The
UNMAYKR makes its return to the DOOM series for the first time since DOOM 64!
To unlock the Unmaykr in DOOM Eternal you must find all 6 Empyrean Keys and bring them back to the
Fortress of Doom. Empyrean Keys are earned by completing
Slayer Gates which require that you hunt down and find the
Slayer Keys. Be warned that Slayer Gates are challenging and any ammo, health or armor spent inside them is lost once you return.
Below are collectible guides for 6 levels but I will highlight the Slayer Key locations for this particular achievement and show the gate locations.
Mission 2: Exultia4:52 - Slayer Gate Key
Mission 3: Cultist Base6:38 - Slayer Key
Mission 5: Super Gore Nest8:45 - Slayer Key
Mission 6: Arc Complex1:00 - Slayer Key
Mission 7: Mars Core6:05 - Slayer Key
Mission 9: Taras Nabad5:31 - Slayer Key
Upon completing this you will unlock the Unmaykr.