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Escalating Nightmare Dungeons in Diablo 4: Vessel of Hatred are a series of increasingly difficult Nightmare Dungeons that culminate into a major boss fight. Learn how to access Escalating Nightmares, how the system works, and what the rewards are here.
List of Contents

Escalating Sigils initiate a sequence of dungeons, with each one being more difficult and rewarding than the last. The latter tiers of these dungeons will have additional affixes that will make them harder to clear, but contain increasingly valuable loot.
You can obtain these sigils by opening the Grand Horadric Cache at the end of a Horadric Strongroom.

Escalating Nightmare Dungeons is a system introduced in Season 9 that links three Nightmare Dungeons into a progressively more challenging sequence. Each subsequent dungeon introduces additional modifiers, increasing difficulty while offering greater rewards.
After defeating the boss at the end of a Nightmare Escalation tier, you’ll find an altar. This altar displays the affixes for the next dungeon. Interacting with it instantly teleports you into the next tier of the escalation.

As of Season 10, Escalating Nightmares may also come with the Chaos Rift affix that appears in Nightmare Dungeons. This allows Chaos Rifts to spawn, allowing players to gain more rewards than the usual Nightmare Dungeon run.

At Tier 4, players face Astaroth, the final boss of each Escalating Nightmare sequence. Defeating Astaroth grants a substantial reward, including crafting materials like Obducite and a variety of equipment.
Astaroth Location and Unique Drops
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Each tier you clear in an Escalating Nightmare Dungeon rewards you with a variety of materials. Completing all four tiers yields even greater rewards, especially Obducite, a key material for Masterworking gear.
Clearing each tier and defeating Astaroth at the end grants a generous amount of Legendary and Ancestral gear. This makes Escalating Nightmare Dungeons a valuable activity for players seeking to level up and efficiently upgrade their builds.
Additional rewards can be earned depending on the affixes active during each dungeon tier. Some affixes increase Obducite drops, while others introduce an Obols Reserve in the next dungeon that contains a large stash of Obols to gamble gear for.

| All Capstone Dungeons | ||
|---|---|---|
| Cathedral of Light | Fallen Temple | Echo of Hatred |
| Vault of the Crucible | Hellish Descent | Enclave of Darkness |
| Den of the Apostate | Breach of Sins | - |
| Fractured Peaks | Scosglen | Dry Steppes | |||
|---|---|---|---|---|---|
| Hawezar | Kehjistan | Nahantu |
Escalating Nightmare Guide

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