The Dark Citadel is the latest endgame content to come with Diablo 4: Vessle of Hatred. Additionally, The Dark Citadel will be the first piece of content in Diablo 4 that must be completed in a group.
Diablo 4: Vessel of Hatred Developer Livestream Summary
The Dark Citadel will become available to players once they reach Torment I difficulty.
This challenging co-op raid will task players with defeating a new monster family — the First Khazra, while solving puzzles to delve deeper into this dungeon.
In order to work together, Diablo 4 is introducing the new Party Finder system, which will allow players to group up and take on this difficult challenge. In addition to the Party Finder, The Dark Citadel will also introduce a Combat Log and a new ping system, which will further allow players to effectively communicate.
Completing each wing of the Dark Citadel will reward players with weekly Ancestral gear.