Morrowind:The Citadels of the Sixth House

Quick Walkthrough
# Enter the Ghostgate (east of Caldera and Ald'ruhn), get a map and explore the area.
# (Optional) Assault the seven Citadels of the Sixth House and kill the seven Ash Vampires, taking the magic items that each carries.
# Enter the Citadel of Vemynal, defeat Dagoth Vemyn to retrieve Sunder.
# Enter the Citadel of Odrosal, defeat Dagoth Odros to retrieve Keening.
# Enter Dagoth Ur in the crater of Red Mountain and confront Dagoth Ur in the Facility Cavern.
# Attack the Heart of Lorkhan with Wraithguard, Sunder, and Keening to destroy Dagoth Ur.
# Return to the Dagoth Ur Facility Caverns to meet Azura, view a cut scene, and receive a reward.

Detailed Walkthrough
Vivec outlined a five-step plan to eliminate Dagoth Ur: Raids inside the Ghostfence, Raids upon Ash Vampire Citadels, Assault on Gate Citadel Vemynal, Assault on Gate Citadel Odrosal, and Assault on Citadel Dagoth.

Phase 1: Raids inside the Ghostfence
Enter either tower at the Ghostgate and ask a Buoyant Armiger for a Map of Red Mountain using the topic "inside the Ghostfence" (must be a Buoyant Armiger and not an Ordinator). Scout the Red Mountain region inside the Ghostfence to become familiar with the area's locations and monsters.  

Phase 2: Raids upon Ash Vampire Citadels
This phase is optional. However, the following artifacts can be obtained by defeating the seven Ash Vampires: Belt of Heartfire, Amulet of Heartthrum, Amulet of Heartrime, Amulet of Heartheal, Amulet of Heartfire, Soul Ring, and Blood Ring. The artifacts are not required to beat Dagoth Ur, but can be of great use against his magic attacks.

Ruins of Kogoruhn
thumb|Morrowind:Kogoruhn|Kogoruhn, one of the Ash Vampire Citadels
:Main article: Kogoruhn
The weakest Ash Vampire, Dagoth Uthol, is in Kogoruhn. Other than the main entrance to the ruins, there is also a doorway inside the northwest area of the Ghostfence. Dagoth Uthol can be found in the Charma's Breath area, and holds the Belt of Heartfire.

If Dagoth Uthol was previously defeated during The Path of the Incarnate quest, then the journal stage will not be recorded.

Citadel Vemynal
:See the Dagoth Vemyn and the Sunder Artifact section.

Citadel Endusal
:Main article: Endusal
Dagoth Endus is in Endusal, located to the northwest of the Ghostgate. He holds the Amulet of Heartrime.

Citadel Odrosal
thumb|Morrowind:Odrosal|Odrosal
:See the Dagoth Odros and the Keening Artifact section.

Citadel Tureynulal
:Main article: Tureynulal
Dagoth Tureynul is in Tureynulal, located to the northeast of Dagoth Ur. He can be found in Kagrenac's Library, and holds the Amulet of Heartthrum.

If Dagoth Tureynul was previously defeated during the Tribunal Temple quest Cleaver of St. Felms, then the journal stage will not be recorded.

Citadel Dagoth
:See the Dagoth Gilvoth section.

Mamaea
:Main article: Mamaea
Dagoth Araynys is in Mamaea, located to the southeast of Gnisis. He can be found in the Sanctum of Black Hope, and holds the Soul Ring.

There is also some unique loot in the Shrine of Pitted Dreams bell chamber, including the Daedric Face of Inspiration and the Fang of Haynekhtnamet.  

Phase 3: Assault on Gate Citadel Vemynal
Vemynal is located to the northwest of Dagoth Ur. Vivec marks the location of this citadel on the map after talking to him about the plan to defeat Dagoth Ur.

Dagoth Vemyn and the Sunder Artifact
thumb|Morrowind:Sunder|Sunder
Dagoth Vemyn can be found in the Hall of Torque (lower level), and holds the Amulet of Heartheal and Sunder artifacts.  

Phase 4: Assault on Gate Citadel Odrosal
Odrosal is located to the southeast of Dagoth Ur. Vivec marks the location of this citadel on the map after talking to him about the plan to defeat Dagoth Ur.

Dagoth Odros and the Keening Artifact
thumb|Morrowind:Keening|Keening
Dagoth Odros can be found in the Dwemer Training Academy (Level 2), and holds the Amulet of Heartfire and Dagoth Odros's Key.

The Keening artifact can be found in the Tower area of Odrosal. The door to the Tower can be unlocked with Dagoth Odros's Key.  

Phase 5: Assault on Citadel Dagoth
thumb|Morrowind:Dagoth Ur (facility)|Dagoth Ur Citadel
The Dagoth Ur Facility is located in the center of Red Mountain. Before assaulting the facility, three Dwemer artifacts are required: Wraithguard (gauntlet received from Vivec), Sunder (warhammer obtained in Citadel Vemynal), and Keening (short blade obtained in Citadel Odrosal).

The easiest path to the citadel is to the southeast, and runs between Odrosal and the Yanemus Mine. The Outer Facilities entrance is blocked by a spherical door that can be opened with a hand crank found on a pipe to the south of the entrance).

Dagoth Gilvoth
Dagoth Gilvoth can be found in the Lower Facility of Dagoth Ur, and holds the Blood Ring.

Dagoth Ur
Dagoth Ur can be found in the Facility Cavern. He will not be hostile at first, and says it is up to you to make the first blow (although he may still attack first after a short period of time). Talk with him for a bit to gain some information, then attack when ready. There's no secret tactic to killing him the first time; just hit/cast hard and he should fall shortly. He will eventually disappear, leaving the Heart Ring near the entrance to Akulakhan's Chamber.

Akulakhan
thumb|The Morrowind:Heart of Lorkhan|Heart of Lorkhan
Heal up and equip Wraithguard, then Sunder. Dagoth Ur and his minions will attack immediately after entering Akulakhan's Chamber. The goal here is to destroy the Heart of Lorkhan in the center of the great Dwemer robot, Akulakhan. It is possible to get Dagoth Ur out of the way by luring him off the cliff into the lava with Levitate.

It's best to use Levitate or Slowfall to reach the giant robot. Be aware that Dagoth Ur will teleport onto the bridge the first time you approach the heart. Strike the Heart of Lorkhan once with Sunder, then five times with Keening to destroy Akulakhan. You will then be able to kill Dagoth Ur as he can no longer regenerate. Run back across the bridge and watch the destruction of Akulakhan, thus ending Dagoth Ur's reign of terror.

Azura's Reward
thumb|Morrowind:Dagoth Ur (facility)|Dagoth Ur after the blight
Follow the ledge back around to the top (or fly up) and open the door to the Facility Caverns using the crank on the pipes in front of it. Once you enter you will meet Azura and a cutscene will begin, outlining your accomplishments. She will leave the Ring of Azura on the ground, which will disappear after leaving the area). When the ring is picked up, a spell called Hand of Azura will be cast on you. This spell is a 100 pts Restore Attributes spell (restores all attributes except Personality and Intelligence).

There will be no more blight or ash storms, though some creatures may still be affected. Any remaining Ash Vampires will perish in their lairs, leaving behind their unique artifacts. Sleepers in towns will also wake from their nightmare.

Congratulations! You have finished Morrowind's Main Quest!

Notes
 
The quest A Lucky Coin becomes available after completing Hortator and Nerevarine. The quest giver, Wulf, can be found in Ghostgate's Tower of Dusk.
It is possible to complete this quest before any other part of the main quest, as Sunder and Keening are always available. However, it is very difficult, as you will take massive amounts of damage while wielding the two artifacts without Wraithguard.
Once this quest is completed, selecting the conversation topic 'Nerevarine' with NPCs will increase their disposition by 10. This can be repeated as long as their disposition is less than 60.

Bugs
 
 However, since killing all six Ash Vampires would actually reduce Dagoth Ur's 300 health to zero if the script were to perform as intended, OpenMW has a hardcoded exception added to prevent this from happening.
 
 
 
 
 
 
 
 

Quest Stages
 
 

;Notes
Not all Journal Entries may appear in your journal; which entries appear and which entries do not depends on the manner in which the quest is done. 
Stages are not always in order of progress. This is usually the case with quests that have multiple possible outcomes or quests where certain tasks may be done in random order.
C0_Act_C stage 20 seems to be referring to the Fake Sunder object from the construction set. Dagoth Ur also has a voiceover regarding the fake copy of sunder as well that is never used. 

;Hints
Dagoth Ur can be easily killed if you drink a lot of strong reflect and restore health potions.