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Doom: The Dark Ages
Chapter 21: The Final Battle Walkthrough
☆ Doom: The Dark Ages is live now!
★ Collectibles | Secrets | Walkthrough
┗ Resources | Codex | Toy
★ Trophies | Beginner's Guide | Enemies
☆ Skins: Twitch Drops | Prince St. Pizza
★ FAQs: Co-op | DLC | Specs | Glory Kills
This is a walkthrough for Chapter 21: The Final Battle in Doom: The Dark Ages. Read on for a detailed guide of The Final Battle, including a walkthrough, tips, and attack patterns of The Old One (Cthulu) & Enhanced Ahzrak!
List of Contents
| ◄ Previous Chapter | Next Chapter ▶ |
|---|---|
| Hebeth | Sentinel Barracks |
The Final Battle Walkthrough
| Main Objectives | |
|---|---|
| 1 | Destroy the Hellgate Generators |
| 2 | Defeat The Old One |
| 3 | Defeat Enhanced Ahzrak |
There are no collectibles and mission challenges in Chapter 21: The Final Battle
1. Destroy the Hellgate Generators
| 1 |  Face-off against a 2 Titans and a Cyclops Titan. Utilize your new shoulder cannon finisher: Siege Breaker. |
|---|---|
| 2 |  Go to the right side of the map to defeat 2 Armored Titans and a Cyclops Titan before destroying the first generator. |
| 3 |  Go to the middle part of the map to defeat a Titan, an Armored Titan and a Cyclops Titan before destroying the second generator. |
| 4 |  Go to the left side of the map to defeat 4 Titans, an Armored Titan and a Cyclops Titan. Equip the railgun weapon for the Atlan and defeat another wave of enemies before destroying the second generator. |
2. Defeat The Old One (Cthulu)
Rocket punch through a flesh wall and continue following the objective marker onto an open area. Face-off against The Old One and kill it before fighting another boss battle.
3. Defeat Enhanced Ahzrak
After defeating The Old One, you will automatically eject from your mech to finally fight Prince Ahzrak. To complete the chapter, defeat 3 phases of Enhanced Ahzrak.
Enhanced Ahzrak Attack Patterns ▼
Boss Fight Attack Patterns
The Old One (Cthulu) Attack Patterns
| Attack | Description |
|---|---|
| Melee Strike | The Old One strikes with his astral mace. Dodge in any direction to avoid damage. |
| Melee Combo | The Old One strikes with his astral mace 3 consecutive times. Dodge all strikes in any direction. |
| Diving Thrust | The Old One levitates before diving forward toward the Slayer. Dodge to the side to avoid damage. |
| Diving Slam | The Old One levitates before slamming his mace to the ground, creating a tremor. Dodge backwards or to the side. |
| Astral Strike | The Old One will teleport to a different location while leaving an astral projection of itself. The projection will perform any attack before going away. Keep your eye on the projection and dodge its attack accordingly before returning focus to the original. |
| Astral Blast | The Old One will phase into an astral projection before charging and creating a large AoE blast. Dash out of the purple radius to avoid taking damage. |
| Tentacle Shot | The Old One raises its cybernetic arm before creating a portal in front that shoots out a long tentacle to attack. Dodge to the side to avoid damage. |
| Tentacle Rain | The Old One levitates before calling a rain of red lasers that create portals which summon tentacles once they touch the ground. The Old One will slam down to the ground, creating a shockwave. Avoid standing on the ground portals and dodge backward as The Old One slams down. |
The Old One (Cthulhu) Boss Guide and How to Beat
Enhanced Ahzrak Attack Patterns
| Attack | Description |
|---|---|
| Energy Projectile | Ahzrak charges his spear with green energy before firing a wide green projectile after doing a slashing motion. Parry this attack to trigger your Shield Rune. |
| Charging Thrust | Ahzrak charges his spear with green energy until it flashes before charging toward the Slayer with a spear thrust. |
| 2 Quick Slashes | Ahzrak performs 2 quick horizontal slashes with his spear. He can chain this with a different attack, making his slashes continuous. |
| 3-Strike Combo | Ahzrak performs 2 underhand slash attacks before swinging with an overhead attack while stepping forward. |
| Jumping Overhead Strike | Ahzrak jumps and slam down with his spear, creating a damaging shockwave before doing an underhand slash. |
| Overhead Slash and Thrust | Ahzrak slams his spear before doing a thrusting attack. |
| Spinning Overhead Strikes | Ahzrak spins around while doing two quick overhead slashes. |
| 5-Hit Combo | Ahzrak enlarges his spear with green energy and perform 2 quick horizontal slashes before stabbing the Slayer 3 times with his spear.Ahzrak will only do this during the third phase. |
| Blood Spikes | Ahzrak will quickly summon blood spikes that cannot be parried. This attack will only trigger if the Slayer is sticking too near Ahzrak. You can only block this to negate damage. |
| Blood Spear Throw | Ahzrak will charge his spear with blood before throwing it to the Slayer. This attack will only trigger if the Slayer is too far from Ahzrak. You can only block this to negate damage. |
| Summon Red Spirits | Ahzrak raises his hand before summoning two Red Spirits that automatically move and leave blood trails. Stepping on the trail will inflict damage. Red Spirits will drop health and armor when destroyed. |
| Summon Spires | Ahzrak raises his hand before summoning four Red Spires. Getting in contact with the Spire will inflict damage. They will also summon fireballs once they expire after being left for a long time. They can only be destroyed with a shield throw and will then drop health and armor. Ahzrak will only do this during the second and third phase. |
| Red Spirit Barrage | Ahzrak will fly away from the fight and summon six Red Spirits that surround the Slayer in a circle. They will glow green before charging at the Slayer one-by-one. Ahzrak will only do this during the third phase. |
| Hell Blades | After the Red Sprit Barrage is over, Ahzrak will come crashing down in the middle of the field before summoning 3 waves of Hell Blades that thrust forward in his every direction. Raise your shield to block the blades or move to the nearest green blade and parry it. Ahzrak will only do this during the third phase. |
Enhanced Ahzrak's attacks can mostly be parried. Parrying him consecutive times will stagger him while he is attacking. Parry his attacks to avoid damage, gain armor, gain Melee charges, and even enhance weapon attacks!
Enhanced Ahzrak Boss Guide and How to Beat
The Final Battle Tips
Evade Attacks to Boost Damage
Performing a perfect dodge boosts the finisher meter or supercharge any weapon that the Atlan mech is using. Try to consistently dodge green attacks to always have a significant increase in damage.
Getting hit by enemies will reset the Atlan's finisher meter.
Always Use the Shoulder Cannons
It is recommended to always fill up the Atlan's finisher meter to 3 bars to use the Siege Breaker finisher. Using this on any Titan enemy will kill them instantly, while using it on The Old One will deal massive damage.
Doom: The Dark Ages Related Guides
Full Walkthrough and List of Chapters
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Chapter 21: The Final Battle Walkthrough
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