Diablo 4 Dark Citadel Guide: Unlock, Wings, Bosses and Rewards
The Dark Citadel is the group dungeon of Vessel of Hatred. The First Khazra, a smarter and nastier breed of goatmen, hold a fortress in a crater in Nahantu, and you can only break in with friends. Damage alone won't carry you here: doors open when your team splits up, solves small puzzles and meets again at the boss.
Read on for how to unlock it, how to find a group, what the three wings ask of you, how the boss mechanics work and what you get for a clear.
Dark Citadel at a glance
- Unlock: the quest Crater of Lost Souls, which appears once you play on Torment I. One completion opens the Citadel for your whole account.
- Group: 2 to 4 players. There is no solo mode, and Solo Self Found characters can't enter. Four is the comfortable number.
- Layout: three wings, each with its own boss at the end. You can clear them on different days.
- Key: none. You need the quest and a group, nothing else.
- Rewards: a weekly cache for your first full clear of the week, plus Citadel Coins for the Citadel vendor and its cosmetics.
How to unlock the Dark Citadel
The Citadel belongs to the endgame, so the game hands you its quest only after the campaign part is done. Work through this list:
- Own Vessel of Hatred. Nahantu and the Citadel are part of the expansion.
- Play a normal character, not Solo Self Found. SSF characters are locked out of the Citadel.
- Switch to Torment I or higher. Community guides describe the quest popping up at that point, after you reach level 70. We haven't retested the exact trigger on a fresh Season 15 character.
- Finish Crater of Lost Souls. It starts in Kurast with Priestess Cualli and sends you after missing villagers. The trail ends at the Ancient Nexus, a Stronghold you take back from the Khazra. Once it's yours, it becomes the Citadel hub with a waypoint, a healer and the Citadel vendor.
- Bring at least one friend and walk into the wing you want from the Ancient Nexus.
You do the quest once per account, not once per character, so your alts can skip it. The Ancient Nexus fight is part of the quest, but the other Strongholds of Nahantu have nothing to do with access.
If the quest isn't in your journal, check that the character has the expansion, isn't SSF and plays on Torment. Some players have also reported the quest giver missing. If everything else is right, you may have hit a bug worth reporting to Blizzard.
Finding a group
The Citadel needs at least two players, and four is what Blizzard recommends. Players report that the puzzles and enemies stay the same whether you bring two people or four, so a full party simply means less running back and forth.
If no friends are online, open the Party Finder from the social menu. You can list a group for the Dark Citadel or join one, and pick the exact wing. Say in the description what you're after: a first clear where everyone learns the mechanics, or a fast weekly run. Party Finder doesn't check roles, gear or skill, so a short chat before the pull saves time.
Inside, use the marker system. You can drop colored markers that your team sees on the map and minimap, which works well for "I take this portal" or "the switch is here".
The three wings and their bosses
Every wing is its own run with its own objectives, and you start each one from the Ancient Nexus. You can leave between wings and come back later. Enclave of Strife comes first and opens the way to the Labyrinth of Souls.
| Wing | Boss at the end | What it asks of your group |
|---|---|---|
| Enclave of Strife | Gorshak | Your first wing. Learn the basics here: circles, switches and keeping apart when bombs land. |
| Labyrinth of Souls | Lorzuul | More puzzles and more splitting up. Agree who goes where before each door. |
| Dominion of Zagraal | Zagraal | The finale. Zagraal punishes slow teamwork with a group wipe, so roles matter most here. |
Along the way you meet more encounters than these three bosses, Kubal among them.
Puzzle cheat sheet
Most of your time in the Citadel goes into objectives, not into killing. Keep an eye on the objective tracker on the right side of the screen: when a door stays shut, the answer is in there. Here is what players describe and what to do about it:
| What you see | What to do |
|---|---|
| A colored pressure switch on the floor | One player stands on it. The door with the same color stays open only while someone is standing there. |
| Two round pads in front of a barrier | Two players step on them at the same time. |
| A Soul Siphon | Activate it, then kill enemies inside the circle around it until it's charged. Kills outside the circle don't count. |
| A stone marked with a symbol | Pick it up and carry it to the slot with the same symbol. Eye goes to eye, flame to flame. |
| A Gateway that needs charging | Kill the guardians nearby, pick up the Realm Shards they drop and bring them to the Gateway until its bar is full. Loose shards show on your minimap. |
| A barrier with a guardian | Kill that guardian. The guardian and its door wear the same symbol, which helps when several doors are shut. |
| Thick fog that stacks a debuff on you | Move from one safe bubble to the next, and follow the green path markers if there are any. Too many stacks kill you, so don't linger. |
| A teleporter | Everyone has to stand inside it before it works. |
Boss mechanics you need to know
Citadel bosses test whether your team does the right task in time. Most of them have a bar such as Impending Doom or Soul Entanglement, and if it fills before you finish the job, the fight is lost.
| Boss or mechanic | How you spot it | What to do |
|---|---|---|
| Gorshak's Soul Bombs | Dark and red circles on the floor under a player | Walk away from your teammates before it explodes, so the blast hits only you. |
| Kubal | A boss with its own arena and objectives | Fight inside the arena with your team. Hitting it from outside was a bug, and Blizzard fixed it. |
| Zagraal's Soul Entanglement | A bar that fills during the fight | Finish your tasks before it's full, or the whole group dies. Assign runners for portals and shards before you start. |
| Soul Orbs | An orb flying toward a player | Kill a Spell Guardian to get a Counterspell Stone. Use any skill right as the orb reaches you and it flies back at the caster. |
| Cleansing bubbles | A debuff that grows on you, and bubbles on the floor | Step into a bubble to clear it, then follow the trail of souls to the next one. |
Before you pull a boss
- Name your runners. Decide who handles portals, shards or stones, and who keeps the boss busy.
- Spread out on purpose. Bombs and circles land on players. Standing in a pile turns one mistake into a wipe.
- Watch the bar, not the health. A boss at 10% still wins if Soul Entanglement fills up.
- Mark it. A marker on the next objective is faster than typing.
- Learn low, push later. Your first clear on a lower Torment teaches the route. Raise the difficulty once everyone knows their job.
Dark Citadel rewards
The Citadel pays out in several ways, so know which one you're running for:
| Reward | How you get it | Good to know |
|---|---|---|
| Weekly cache | Your first full Dark Citadel clear of the week | Community guides say all three wings count toward it. Later clears that week don't give a second one. |
| Citadel Coins | Earned all through your runs | You spend them at the Citadel vendor in the Ancient Nexus, which sells consumables, caches and cosmetics. |
| Treasury chests | Bonus objective: kill the Treasury Guardians, marked on your map | Extra chests on top of the regular loot. Worth the detour on every run. |
| Cosmetics | Citadel vendor and random drops | Which pieces you can get, and on which Torment, may have changed since launch. Check the vendor and reward screens in your game. |
Among the Citadel rewards, the Scroll of Restoration gives a Tempering charge back to an item, one charge per scroll, and you can use more than one on the same item. That makes it handy when a good piece runs out of rerolls. Blizzard has listed it among Citadel rewards before, but we can't promise how many you'll get today.
Blizzard doesn't publish the contents of the cache or any drop chances, so count gear from it as a bonus. Earlier in 2026 some players reported empty caches on high Torment. We can't tell whether that still happens, so look at the reward screen after your first clear before you plan a long weekly routine around it.
Quick plan for your first Dark Citadel run
- Unlock: switch to Torment I and finish Crater of Lost Souls from Kurast to the Ancient Nexus.
- Group up: bring friends or list a group in Party Finder for Enclave of Strife and say it's a learning run.
- Assign jobs: one or two runners for portals, shards and stones, the rest on enemies. Agree on markers.
- Follow the tracker: a shut door means an open objective, not more enemies to kill.
- Spread out at the bosses and keep an eye on the Doom or Entanglement bar.
- Clear all three wings during the week, open your cache and spend your Citadel Coins in the Ancient Nexus.
Conclusion
In the Dark Citadel a team that talks gets further than a team that only hits hard. Unlock it once with Crater of Lost Souls, find at least one partner, give everyone a job and read the objective tracker. After a couple of runs the wings feel routine, and the weekly cache and Citadel Coins become an easy part of your week.
If you need a second player, a booster from our Diablo 4 Hourly Driving joins your group with their own character, and you decide what you play together.
FAQ
Play on Torment I or higher and finish the quest Crater of Lost Souls. It starts with Priestess Cualli in Kurast and ends at the Ancient Nexus, the Citadel hub. You need Vessel of Hatred, and one completion unlocks the Citadel for your whole account.
No. You need at least two players, and Blizzard recommends four. Solo Self Found characters can't enter at all. Use Party Finder if your friends are offline.
In the Crater of Lost Souls in Nahantu, not far from Kurast. You enter all three wings from the Ancient Nexus, which you take over during the unlock quest.
No. The unlock quest and a group of at least two players are all you need.
Enclave of Strife with Gorshak at the end, Labyrinth of Souls with Lorzuul and Dominion of Zagraal with Zagraal. Enclave of Strife comes first, and you can clear the wings on different days.
A weekly cache for your first full clear of the week, Citadel Coins for the Citadel vendor, extra chests from the Treasury Guardians and cosmetics. Blizzard doesn't publish cache contents or drop chances, so gear from it is a bonus.
It gives an item back one Tempering charge per scroll, and you can use several on the same item. Blizzard has listed it among Dark Citadel rewards, but how many you get today isn't confirmed.