|# of Zones||4|
|Respawn Time||Never (storage is safe)|
|Dwarven Automatons, Falmer, and Chaurus|
|The Lunar Lorkhan|
|Console Location Code(s)|
|Mzulft01, Mzulft02, Mzulft03, Mzulft04z, MzulftExterior, MzulftExteriorB01, MzulftExterior03|
|South-southeast of Windhelm and just northwest of Stony Creek Cave|
|# of Alchemy Labs||1|
|# of Moonstone||7|
Mzulft is an extensive Dwarven ruin south-southeast of Windhelm, along the main road between Windhelm and Riften. Access to virtually all of the three-zoned main ruin is blocked by a locked door (which cannot be picked) until you begin the College of Winterhold quest Revealing the Unseen.
It is the location of one of two Oculories in Skyrim (the other is deep underground in Blackreach), and this feature in particular made it a target of a secret project conducted by the Synod. However, the locals aren't too happy, and have decimated the mages' numbers. Only two remain alive within the ruin upon your arrival.
Mzulft contains a multitude of Dwemer metal items, which can be smelted into Dwarven metal ingots or sold directly—they are relatively high-valued. You can also collect all ten of the Dwarven Cogs needed to complete the quest Arniel's Endeavor here.
Mzulft has three main structures: a wall with an extending archway to the north, the Dwarven Storeroom to the southwest, and the main entrance to the ruins between them. An iron ore vein is at the northern end of the wall, against the cliff face. If Dawnguard is installed, an Adventurer carrying a copy of The Aetherium Wars lies under the archway in a pool of blood. In addition, a hidden chest is on top of the wall, near a pipe belching steam. You may reach it by zigzagging up the hill, starting from just north of the ore vein, and working your way up until you can jump down onto the wall.
The first room is a small antechamber. Gavros Plinius is against the wall ahead and to the right. Loot him when he dies to find, among other things, the key to the unpickable door, the only way forward. Head east along the corridor. The right wall seem to have collapsed partly; earth and plants intrude in the typical Dwemer architecture. A few pieces of Dwemer scrap metal, and some pottery, are scattered on and underneath the shelves to either side as you climb the ramp. Avoid the small pressure plate that will trigger rows of spikes from the ceiling ahead. You'll stumble upon the corpse of a Synod researcher in the path just after the spikes; step over them, but be sure to grab the healing potion near their body. Turn right, where two Dwemer bowls, a pot and an urn are arranged just before a doorway. Beyond you may spy a Dwarven spider worker from a distance as it skitters about the gears in the next room. Another is around the corner, hard to see through the steam. There's also a Dwemer Convector on a stone table among some Dwemer pottery and a stamina potion.
Keep heading east up the ramp, past more pottery and scrap metal. In the next room are two more spiders, one in the northeast corner and one which will pop out of a port on the south wall. Other than the requisite bits of clutter, there's also a magicka potion by the west wall, and two doors.
The door to the north is trapped; either step back when opening it or disarm the adept-level tension cable at the bottom right of the door. Beyond is another spider, an unlocked chest, and a moonstone ore vein in a steam-filled dead end.
The door leading further east opens to a ramp littered with quite a bit of scrap metal for refining. At the top the corridor takes a left turn and you'll see another door with a port on either side. The left one houses a spider that will ambush you when you get close. Past the door is a short corridor that quickly becomes a natural rock cavern complete with a tree. Just inside, near the tree, is a pile of rubble; climb over it to find a Dwarven shield tucked away. Down the tunnel, just before the next room, is an alcove with a moonstone ore vein and a handy pickaxe on a barrel.
A chaurus feeds on another researcher in the next room. A scaffold leads up to another, equally dead researcher, two bed rolls, a potion, a scroll, and an apothecary's satchel. At the base of the scaffolding is another pickaxe and some leather strips. Across the room is a moonstone ore vein, a table with some foodstuffs, and a knapsack. The tunnel leading out has a tripwire rigged to a falling boulder trap, but it is fairly easy to spot. Two chaurus scuttle about among the bones of many different animals (and at least one human) just past that, and the architecture starts to show more Dwemer traits again.
After a right turn and a ramp, a Dwarven sphere will pop out of a port on the wall just before an adept-locked gate. Inside the gate are two unlocked chests, a Dwemer Cog, three pieces of pottery, a Solid Dwemer Metal, a gyro and two Dwarven metal ingots.
Head north, then east up a ramp to another large set of doors. A spider is just past the doors in a corridor filled with steam. At the junction, a sphere will pop out of a port in the dead end to the right. Turning north again, you'll enter a room with stairs leading down into a pit, a corridor leading north on the other side of the pit, and a spider. Down the stairs are lots of scrap, a healing potion, and an alchemy lab set into the table. To the south, an adept-locked gate leads to an unlocked chest.
Back up the stairs and north into the next room, you might spot the sphere rolling around the far side of the room. Between you and it is a large floor pit down stairs to the right, and a thin ledge skirting it to the left. There's no loot in the pit, but there are two spiders in the ports on either side of the stairs. On the ledge leading across to the far side where the sphere patrols is a set of three steam piston traps, then a set of pressure plates, then three more pistons. These aren't very dangerous; they'll just push you off into the pit if you walk into them.
North, the tunnel is filled with rubble, and the corpses of a spider and Falmer hint at what is to come. An unlocked chest is on the ground near them, and the door to the next zone is up a ramp to the east. Before heading through, loot the next set of corpses — now, two spiders and a Falmer — in front of the doors and duck around the collapsed wall on the left to find an unlocked chest.
 Mzulft Boilery
The Boilery starts off at the bottom of a ramp, where the remnants of two Dwarven spiders and a sphere guardian litter the floor. Up the incline you'll find another sphere guardian in pieces — part of the sphere is still rocking back and forth, as if it was just destroyed — and a spider in the open just past that. Beware while looting the spider, as a Falmer — very much alive — is in the corridors nearby. It patrols in a counter-clockwise loop, so if you follow it at a distance you can sneak by should you desire.
Whichever fork you take, you'll end up in the same place shortly, though the right turn near the spider runs you by another Synod researcher's body. Going straight puts you within grabbing distance of more metal items, plus a Dwarven metal ingot in a bowl. Either way, the only way forward is east up an incline (a destroyed sphere guardian is at the right turn before the ramp). Another Falmer skulks at the top, wandering back and forth. The far eastern pillar has a Dwarven metal ingot in front of it, next to an urn.
Going north, the corridor is scattered with Dwarven metal items. In the next room, a Falmer patrols from one side of the central pillar to the other, while another walks from the right side through an open gate to a smaller room to the east and back again. The west gate is expert-locked and contains the remains of two sphere guardians and two spiders; one more spider is in front of the gate. The north room is empty.
In the connecting room to the east, a spider lies broken in the corner, and there's a tunnel broken through the wall further east. This tunnel leads deeper into the earth and can be narrow in places. When the tunnel turns north and widens slightly, a chaurus scuttles back and forth towards the end of the room. At the southernmost point of its patrol route is a small side room containing an unlocked chest, a chaurus egg sac and another moonstone ore vein.
The next room contains a Falmer and two chaurus. Up a short incline to the east is a moonston ore vein, and the tent near the pillar to the west contains an unlocked chest, pine thrush nest and a loose egg of the same type. Another egg sac is just to the north, next to a tripwire that will release a claw trap from the pillar. The chaurus may trip it for you, if you get their attention.
The path twists west, north, east then west again, passing two sets of glowing mushrooms on the wall (for a total of four to harvest). Along the north side of the corridor, a gap that you can't squeeze through will give you a glimpse of what is to come. A Falmer stands with its back to you on the other side. A well-placed arrow can kill it, though spells may not be as easy since the slits are so narrow. A spell hitting the near side will draw two Falmer, including the one you can see, to investigate via the western end of the corridor. A Synod researcher's corpse lies in the middle of the corridor next to the gap, and another's can be spotted in the doorway of the tent visible through the gap.
Keep going west, then turn north into the cavern. The other Falmer patrols directly in front of you as you enter the room. The tent on the lower level contains, aside from the dead researcher, a pine thrush egg and a rock warbler egg. Find the tunnel out along the north wall, but be careful, as the next room contains a chaurus directly in your path. Luckily, that's all it contains, aside from plentiful egg sacs and glowing mushrooms. Head left immediately from where you entered the room to find five sacs grouped together, then jump up and behind them to find a semi-hidden chest.
The next room returns to Dwemer architecture. A Falmer pokes its head into the room from the far side every so often, so be careful as you try your hand at the master-locked door that blocks off the northeast part of the room. Behind it is a chest, a key to the same room (if you have Telekinesis, you can actually grab the key off the table with the spell by positioning yourself against the barred window, negating the need for lockpicking), a skeleton reclining on a bed, and, next to the skeletion, a copy of the Alteration skill book The Lunar Lorkhan.
Head north, then east. A moonstone ore vein hides in the shadowy undergrowth just outside the room. Take the first right in the corridor beyond to find an expert-locked door, unlocked with the same key as the master-locked door before. Inside is a chaurus. A stone bed is on a dais across from the door, with some scrap metal on the ledge above it. To the right, a table holds a Dwarven helmet and an apprentice-locked chest.
Back out in the corridor, continue west. You'll come into a rectangular room with a shallow pool running down the length of it. Two Falmer are visible on the other side of the pool. Head right to skirt around the water, popping into a nook on the way to grab a healing potion and unlock a novice-level chest.
The door to the next zone awaits via the northeastern exit to the room, but first head all the way around the pool from the entrance, to the southeastern door. An adept-level trigger connected to the door will extend horizontal pikes from the walls to skewer you, so step back or disarm as you will. Past the door, a chaurus wanders about in a small room. This room contains an unlocked chest, a potion of magicka, and a potion of fortify light armor, as well as a stone bed and the remains of two Dwarven spiders.
Yet another researcher lies in the shadow of some rubble just before the door to Mzulf Aedrome.
 Mzulft Aedrome
A Falmer paces restlessly at the top of the ramp just inside this area. A chaurus is just around the corner to the north, and is hard to see until you're nearly to the top of the ramp. The corridor ends at a tattered banner on the wall flanked by Dwemer metal heads. There are branches both to the left and right, but both paths lead to the same, large room.
A Falmer patrols from one entrance to the other. Another is also in the open area on the ground floor. The third and fourth are by the tent on the second level to the west, and the level above that, respectively. One of the Falmer carries a focusing crystal, and one is the strongest type possible for your level. The tent on the second level contains a chest, a salmon to harvest, a pine thrush nest, and two loose eggs of the same type. The northeast corner of the room has a Synod researcher and destroyed Dwarven Spider. This room has three exits; to the north is a master-locked door to a dead end with an unlocked chest and moonstone ore vein among the rubble. West is a locked door that requires a key.
East is another corridor leading down. The next room to the east has an arena-type layout and contains only pottery and scrap metal. Past that is another door, then a short passage to the next room which contains two dead Falmer. A closed but unlocked door hides a boss-level Dwarven automaton. It will probably be a centurion, but depending on your level it might be a lesser automaton. Once it is destroyed, you'll find three more Falmer corpses and an unlocked chest containing the Mzulft Observatory Key. On the ledges on either side of the room is some good loot, including two Dawrven metal ingots, two potions (one fortifying a random skill and the other restoring health, magicka or stamina) and a Scroll of Chain Lightning.
Now you can open the key-required door. Past is a ramp up and another key-required door, this time with a dead Falmer in front of it. Try to unlock the door, and you'll hear the voice of Paratus Decimius from behind it. He will unlock the door for you and engage you in conversation when it's open. When you're done talking, follow him, taking note of the door to the south. A small camp is in the corridor, with several food items, books, and bedrolls, as well as a coin purse and a knapsack. Paratus will lead you to the Oculory, where you'll have to solve a puzzle. The Oculory contains several Dwemer-related books, and two tomes, one of Flames and one of Frostbite, near the controls.
Once the puzzle is solved, you can leave via the southern door you saw earlier, though not without one more projection from Nerien, who will tell you to return to the College right away. If you choose to take the long way back, you won't get the cutscene, but it won't affect your quest either way.
If you take the shortcut near the Oculory, you'll end up in the mountains north of where you entered, and can fast-travel from there.
 Dwarven Storeroom
The Dwarven Storeroom is a separate building just south of the main entrance. The storeroom contains no enemies, but does contain a Dwemer Convector (needed for the third part of Arniel's Endeavor) and a large amount of Dwemer scrap and other Dwemer items (pans, bowls, etc).
To the right as you enter the main chamber there is an apprentice-level locked door leading to a room containing two chests, 18 Dwarven metal ingots, and more Dwemer clutter and scrap. Looking straight ahead in the main chamber, there is an expert-level locked gate leading to a room containing a random enchanted Dwarven axe lying on a shelf, several more Dwarven metal ingots, and more Dwemer clutter and scrap.
Noteworthy items include:
- Bent Dwemer Scrap Metal x5
- Dwarven Metal Ingot x18
- Dwemer Cog x4
- Large Decorative Dwemer Strut x1
- Large Dwemer Plate Metal x2
- Small Dwemer Lever x1
- Solid Dwemer Metal x3
 Related Quests
- Arniel's Endeavor: Uncover an ancient Dwemer secret. (radiant)
- Lost to the AgesDG: Search for the Dwemer's Aetherium Forge.
- Revealing the Unseen: Learn the Location of the Staff of Magnus.
- Mzulft has the highest yield of possible Dwarven metal ingots in one place, having a possible total of 472.
- If you jump from the top of the scaffolding in the beginning of the dungeon with the double beds and the paralysis scroll, it may cause you to fall through the map and advance further into the dungeon.