Doom: The Dark Ages: Walkthrough & Boss Guide

This is a condensed overview of DOOM: The Dark Ages (id Software, released 15 May 2025 on PS5, Windows and Xbox Series X/S), not a chapter-by-chapter walkthrough. The chapter list follows Insider Gaming, the boss-to-chapter list follows PlayerAuctions, and the story and mechanics follow Wikipedia, Gfinity and Xbox Wire. Boss notes are limited to what those pages state; the sources used here do not document specific weapon or gear picks for each boss. Spoilers follow.

The campaign has 22 chapters: Village of Khalim, Hebeth, Barrier Core, Sentinel Barracks, The Holy City of Aratum, Siege Part 1, Siege Part 2, Abyssal Forest, Ancestral Forge, The Forsaken Plains, Hellbreaker, Sentinel Command Station, From Beyond, Spire of Nerathul, City of Ry'uul, The Kar'Thul Marshes, Temple of Lomarith, Belly of the Beast, Harbor of Souls, Resurrection, Final Battle and Reckoning. Revelations, a story expansion, was released on 7 July 2026 and is not covered here.

Combat is heavier and more deliberate than DOOM Eternal's. The Shield Saw handles blocking, parrying and attacking: it can be thrown like a boomerang to cut down weaker enemies and stun larger ones. Some enemy attacks have a green aura; blocking one inside the parry window stuns the enemy, breaks its defenses and recharges your melee attacks. Every weapon, ranged or melee, has its own skill tree.

The Atlan, the giant mech, is first piloted in Chapter 3, Barrier Core, which Gfinity says mostly consists of tutorials on operating it; it is not introduced in Siege Part 1. The Atlan fights almost entirely in melee with heavy punches, a combo gauge fuels a stomp or a finisher, and one enemy hit cancels the combo (Xbox Wire). Which later chapters bring the Atlan back is not covered by the pages used here.

Xbox Wire's preview describes a cybernetic dragon mount used to defend a flying city against demonic warships, with dodges and afterburner for movement, and a sandbox-style mission where you close five demon portals in any order; some portals lead to puzzle dungeons and others to invincible Leader bosses that grant permanent upgrades. The preview does not name the chapters, so this page does not assign the dragon to a specific chapter.

According to PlayerAuctions, the Vagary Champion appears in Chapters 4 and 22, the Agaddon Champion in Chapter 8, the Komodo Champion and the Old One in Chapter 14, Kreed Maykr in Chapter 20, Enhanced Ahzrak in Chapter 21, and Ahzrak with the Witch in Chapter 22.

You play the Doom Slayer fighting for the Night Sentinels on Argent D'Nur against Hell's forces led by Prince Ahzrak. The alien Maykrs, particularly Kreed Maykr, control Ahzrak with a device called a Tether, and the campaign follows the fight over the Heart of Argent, the Slayer's pursuit of Ahzrak, and the Old Ones and Cosmic Realm (Wikipedia).