Nightmare Dungeons

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Nightmare Dungeons are part of the Diablo 4 end-game.

We’ve crafted a difficulty of Diablo dungeons straight out of your nightmares. No, really! Nightmare-difficulty dungeons in Diablo IV unlock upon locating your first Nightmare Sigil. Each sigil corresponds to a specific dungeon somewhere within Sanctuary. These sigils will add special modifiers to their dungeon, increasing the ferocity of the hell-servants waiting for you inside and providing higher-rarity loot. Through completing Nightmare dungeons, you will recover even more powerful sigils, introducing increasingly death-defying modifications and challenges for you to overcome. As you progress into higher and more challenging World Tiers, new Nightmare Dungeons will become available for you to explore.

Sigils

Sigils can be crafted at the Occultist.

Sigils allow players to upgrade dungeons to make them Nightmare Dungeons where additional affixes are applied to monsters in the dungeon.

Sigil Types and Nightmare Dungeons

Tier 1-10	Tier 11-20	Tier 21 -100
Common Sigil Dungeons Abandoned Mineworks Conclave Dark Ravine Defiled Catacomb Demon's Wake Earthen Wound Guulrahn Canals Steadfast Barracks Sunken Ruins Zenith	Sacred Sigil Dungeons Aldurwood Ancient's Lament Black Asylum Blink Burrows Conclave Crusader's Cathedral Guulrahn Canals Maugan's Works Maulwood Onyx Hold Shivta Ruins Steadfast Barracks Stockades Sunken Ruins Zenith	Ancestral Sigil Dungeons Abandoned Mineworks Ancient's Lament Champion's Demise Crusader's Cathedral Dark Ravine Defiled Catacomb Demon's Wake Deserted Underpass Earthen Wound Guulrahn Slums Immortal Emanation Jalal's Vigil Maugan's Works Maulwood Prison of Caldeum Raethwind Wilds Ritual Tower Shadowed Plunge Serpent's Lair Stockades

More information on what Sigils provide can be found on the Sigils page.