Doom: The Dark Ages: Complete Walkthrough & Boss Guide
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🗺️ Main Story Walkthrough
Tick off each step as you go — your progress saves locally, no account needed.
DOOM: The Dark Ages opens in the medieval-tech world of the Argent D'Nur, casting you as the Slayer encased in a towering suit of Sentinel armor. The opening chapters of Khalim and Hebeth are built entirely around the Shield Saw — your primary defensive and offensive tool simultaneously. Green-glowing projectiles thrown by demons can be parried with a perfectly timed Shield Saw raise; a successful parry immediately staggers the attacker and fills your stun meter. Unlike DOOM Eternal's run-and-gun philosophy, The Dark Ages rewards planting your feet and reading attack patterns. Use the Power Gauntlet melee weapon to punch through clusters of smaller Soldiers and Imps to generate ammo drops.
Chapters 3 and 4 introduce the three core Power Melee weapons: the Flail, the Power Gauntlet, and the Dreadmace. The Flail generates a shockwave on impact, useful against groups; the Power Gauntlet focuses single-target burst damage; the Dreadmace hits one target with massive force while staggering nearby demons. Experiment with all three in the Sentinel Barracks arenas before committing to an upgrade path. Chapter 4 ends with the Vagary Champion boss fight, a armored spider-demon that fires alternating green-parryable and red-unparryable projectiles — parrying the green ones is the primary way to build her stun meter and expose her for burst damage.
Chapters 5, 6, and 7 form a continuous siege sequence in Aratum, the game's grandest environment. Demon forces pour through breached walls in persistent waves. The Skullcrusher Pulverizer excels here — its wide bone-shard spread devastates clustered lesser demons arriving through chokepoints. The Accelerator (the game's Plasma Rifle equivalent) handles priority targets at mid-range. During Siege Part 1, you pilot the Atlan mech for the first time — a colossus-scale combat section where you stomp and smash gigantic demon constructs. The mech controls are deliberate and weighty; aim for glowing weak points on large demon engines.
Chapter 8, Abyssal Forest, is one of the game's longest missions and introduces your cybernetic dragon Serrat for aerial combat sections. Flying Serrat over the forest canopy requires dive-bombing demonic anti-air emplacements in sequence before ground forces can advance — destroy the emplacements from above before descending. The chapter culminates in the Agaddon Champion boss fight, an armored heavy warrior who locks himself behind a shield stance. Bait the Agaddon Champion into attacking, parry his melee combo to stagger him, then unleash Dreadmace strikes during the stagger window. Repeat until his shield bar depletes.
Chapters 9 and 10 are dense with upgrade materials and serve as the game's gear-consolidation phase. The Ancestral Forge level contains the highest concentration of Argent Crystalline resource nodes — clear every demon cluster before searching the environment, as uncollected nodes disappear if you skip arenas. By the Forsaken Plains you should have fully upgraded at least one ranged weapon and one Power Melee weapon. The Flail's shockwave upgrade, which extends its area-of-effect radius, pays dividends from here through the endgame as demon density increases significantly. Hellbreaker in Chapter 11 is a linear horror-tinged gauntlet requiring precise Shield Saw parries at high speed.
Chapter 14, Spire of Nerathul, is built around the Komodo Champion boss at its conclusion — an agile, acrobatic demon that combines rapid melee combos with shoulder turret fire. The level leading up to it trains you explicitly on the parry timing needed for the fight: Komodo-type demons throughout the chapter perform the exact two-hit horizontal slash sequence the Champion uses. When the Champion opens with its first horizontal slash, immediately ready the Shield Saw for the follow-up second slash and parry it — this fills the stun meter faster than anything else. The Old One also appears in this chapter as a mid-level spectacle fight requiring sustained Shield Saw throws to chip its armor.
Chapter 20, Resurrection, is the penultimate content chapter and introduces the Kreed Maykr boss — a treacherous Ministry Bishop who has allied with Hell's forces. Kreed surrounds himself with summoned demonic minions; kill the minions first to remove his ability to heal from their deaths. Watch for the glowing green halo around Kreed's body, which marks his parryable attack phase — a successful parry during this phase staggers him completely. The chapter also features a second extended Atlan mech sequence against a demonic siege engine, requiring you to target and destroy multiple glowing structural weak points in a specific order before the engine reaches the city walls.
Chapters 21 and 22 are the game's climax, pitting you first against the Old One in its machine-converted form and then against Enhanced Ahzrak, the Prince of Hell, in a three-phase finale. Phase 1 of Ahzrak is melee-combo heavy — parry aggressively. Phase 2 adds arena pillars and jumping attacks; throw the Shield Saw to destroy the pillars and remove his cover. Phase 3 introduces green spirit projectiles that must be individually parried — failing to parry them allows Ahzrak to heal. The Reckoning chapter then adds Ahzrak and an allied Witch simultaneously; focus whichever target lacks a shield at any given moment and do not split damage between them.
⚔️ Boss Guides
Vagary Champion
Attack Patterns
The Vagary Champion is an armored spider-demon variant protected by thick gold plating across her frontal carapace. She fires rapid barrages of projectiles in two colors: red (unparryable, must be dodged) and green (parryable, should be parried). She also creates viscous slowing zones on the arena floor that restrict movement and periodically charges across the arena with a claw swipe. Nearby smaller Vagaries spawn throughout the fight to disrupt your focus.
Strategy
Maintain medium distance and read each volley carefully. Parry every green projectile thrown — each successful parry adds significant stun meter. When her stun bar fills she collapses, exposing her vulnerable rear legs and underbelly. Spend the entire stagger window firing the Skullcrusher Ravager at concentrated points on her underside. Kill any spawned small Vagaries the moment they appear or they will intercept your parry line of sight. Repeat the parry–stagger–burst cycle until she falls.
Agaddon Champion
Attack Patterns
The Agaddon Champion is a veteran Hell warrior who relies on a massive shield to neutralize ranged attacks. When held in shield stance, virtually all projectile and melee damage is negated. He deliberately advances, forcing close-range engagement, then transitions from defense to offense with a multi-hit melee combo — a shield bash followed by two axe swings. He also performs Hell Surge ground strikes that send shockwave lines across the arena floor.
Strategy
Do not waste ammo against the raised shield. Back away slightly to bait the shield bash — immediately after the bash animation ends, his shield lowers briefly as he winds up the axe swings. Raise your Shield Saw and parry the first axe swing to fill the stun meter rapidly. A full stun drops him to the ground; unleash the Dreadmace for maximum damage. Dodge the Hell Surge shockwaves by jumping over the lines as they travel across the floor, and return to baiting the next combo immediately.
Komodo Champion
Attack Patterns
The Komodo Champion is an agile, acrobatic demon that closes rapidly with a two-hit horizontal slash combo, then immediately disengages to fire shoulder turret projectiles. It mixes in running leaps and spinning kick attacks to disrupt positioning. The turret fire is fast and spread across multiple angles, making standing still lethal. At 50% health it begins incorporating a diving pounce attack that deals heavy damage if it connects.
Strategy
Let the Komodo Champion close in and initiate its horizontal slash. The second slash of the combo is always parryable — raise the Shield Saw to intercept it. A successful parry staggers the Champion and opens a brief window where the head is fully exposed; hit the head with the Flail to maximize stun meter gain. When it retreats to use turret fire, switch to the Accelerator to maintain pressure from range. After the diving pounce appears in phase two, dodge laterally as it launches and counterattack immediately when it recovers.
Kreed Maykr
Attack Patterns
Kreed Maykr is a corrupted Ministry Bishop who combines angelic energy attacks with demonic summoning. He fires expanding yellow wave rings that must be jumped over, drops purple targeted blasts in sequence on your position, and periodically calls in waves of lesser demons that he can drain for health restoration. When his green halo glows, he prepares a high-damage projectile beam — this is his sole parryable attack.
Strategy
Eliminate summoned demon minions the instant they appear to cut off Kreed's healing supply — use the Flail's shockwave to kill groups quickly. When his green halo begins to pulse, stop all movement briefly and raise the Shield Saw; a clean parry of the beam staggers him completely. During the stagger, close distance and fire the Skullcrusher Ravager directly into his unguarded form. Jump over yellow rings rather than trying to sidestep — they expand too quickly to dodge laterally at close range.
Enhanced Ahzrak (Prince of Hell)
Attack Patterns
Enhanced Ahzrak is the three-phase final boss of The Dark Ages. Phase 1 is melee-focused: rapid combo strikes and ground slams that require aggressive parrying to counter. Phase 2 adds stone pillars across the arena that Ahzrak hides behind to fire projectile volleys and jumping axe attacks from unexpected angles. Phase 3 introduces a barrage of green spirit projectiles — each must be individually parried or Ahzrak absorbs them to restore health — alongside sweeping blade waves across the full arena width.
Strategy
In phase 1, parry every melee combo aggressively and use the Dreadmace during each stagger window. In phase 2, immediately throw the Shield Saw at each pillar to destroy his cover, then resume parrying his jumping attacks. Collect red spirit orbs that appear around the arena — these restore your resources. In phase 3, slow down and track each green spirit carefully, parrying them one at a time before they reach Ahzrak. Jump over the blade wave sweeps and counter-attack immediately after each wave passes.