Argent D'Nur

Argent D'Nur is a location and the final level in Doom (2016). The shattered remnants of the city of Argent within a mysterious world long ago conquered by the demons and absorbed into Hell, it was the home of the Night Sentinels and the location from which the Doom Slayer is thought to have gained immense power for fighting against the demonic hordes. It is the location of the source of Argent energy, the power produced by the elemental Wraiths, known as "The Well," which is also the name of the thirteenth and final mission which takes place there. The Spider Mastermind serves as the boss of this level. By destroying it and exercising the powers of the Crucible, the Hell portal on Mars created by Olivia Pierce can finally be sealed.

"By destroying VEGA, you've created a portal directly into the heart of Hell. Now you must find your way to the source of the UAC's power known as The Well. The Crucible will allow you to absorb and contain the energy of The Well for good."

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Codex Entry
''While some intelligence has been directly retrieved from Argent D'Nur, most of the details we have regarding this location have been extrapolated from decoded tablets and scriptures. Limited data from remote collection and information decrypted from the Corrax tablets suggests that this area is the corrupted ruins of a "lost realm" - a world that has been entirely and absorbed into the Hell dimension. The battle that was fought to claim this area is of great significance, as the spread of Hell's dominion accelerated quickly upon absorption of the region.''

The Hell energy that emanates from this region passes through a dimensional tear, and appears on Mars at the Argent Fracture.

From the Corrax tablets:

"All falls before the command of Hell, for our power is absolute, our march to victory inevitable. Before our armies, even the Elemental Wraiths of Argent D'Nur were subjugated. In that great victory the Night Sentinels, protectors of the Wraiths, were betrayed by one of their own, and the wretches wept as we devoured their world and took The Well for our devices. None stand against us, for treachery resides in all things and we shall set it free."

Objectives

 * Close The Well
 * Access The Well Cathedral
 * Lay the Wraiths' souls to rest (3)

Challenges

 * Hold Still
 * Kill two Barons of Hell with one shot.


 * Uncharted Territory
 * Find all three "Skull Switch" secrets.


 * Big [REDACTED] Gun
 * Kill 25 demons with the BFG.