Diablo 4 Nightmare Dungeons - How to unlock and what they do (Season 1)

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The demon in Diablo 4.
July 6, 2023: Diablo 4 Season 1 will be out soon, so read up on everything you need to know about Nightmare Dungeons!

Let’s take a closer look at the Diablo 4 Nightmare Dungeons. In Diablo 4, the developers have introduced new mechanics, including tougher enemies and more valuable rewards.

Today we are going to tell you how to unlock these dungeons, and what you will encounter there. Also, we will discuss the most valuable rewards you can get from the Nightmare Dungeons.

What are Nightmare Dungeons in Diablo 4? (Season 1)

Nightmare Dungeons in Diablo 4 are modified versions of standard dungeons. It is reported that the game has around 150 of them. In order to access one of these dungeons, you will need to clear a certain stronghold.

If you want to turn a Dungeon into a Nightmare Dungeon, you’ll have to get a Nightmare Sigil. Each of them is bound to a specific Dungeon, which can modify it in a certain way.

The character is somewhere in the dark forest in Diablo 4.
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What are the Nightmare Dungeon rewards in Diablo 4?

There are many interesting items you can get from Nightmare Dungeons, such as Potions, Magic Gear, and more. However, the most important reward is probably Glyphs. These special runes are crucial for Paragon Boards, and help you to progress through them.

What are Nightmare Sigils in Diablo 4 and how to get them

According to the information we have so far, Nightmare Sigils in Diablo 4 are special keys you can use before you enter a certain dungeon. If you activate it, you’ll add special modifiers and make all the monsters inside stronger, converting a regular dungeon to a Nightmare Dungeon. Also, you’ll get an increased chance of finding better loot.

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You can get Nightmare Sigils from an NPC called the Occultist. This character specialises in producing sigils and salvaging them. So, if you want to get rid of some Nightmare Sigilis and craft other ones, then you should go to him. Here is the list of his offerings:

Sigil Type Sigil Tier Sigil Cost
Common SigilTier 1-5x4 Sigil Powder, x4,000 Gold
Common SigilTier 6-10x6 Sigil Powder, x6,000 Gold
Sacred SigilTier 11-15x13 Sigil Powder, x8,000 Gold
Sacred SigilTier 16-20x18 Sigil Powder, x10,000 Gold
Ancestral SigilTier 21-25x23 Sigil Powder, x13,000 Gold
Ancestral SigilTier 26-30x28 Sigil Powder, x16,000 Gold
Ancestral SigilTier 31-35x34 Sigil Powder, x19,000 Gold
Ancestral SigilTier 36-40x40 Sigil Powder, x22,000 Gold
Ancestral SigilTier 41-50x50 Sigil Powder, x26,000 Gold
Ancestral SigilTier 51-60x60 Sigil Powder, x30,000 Gold
Ancestral SigilTier 61-70x70 Sigil Powder, x35,000 Gold
Ancestral SigilTier 71- 80x80 Sigil Powder, x40,000 Gold
Ancestral SigilTier 81-90x90 Sigil Powder, x45,000 Gold
Ancestral SigilTier 91-100x100 Sigil Powder, x50,000 Gold

These new Nightmare Dungeons look interesting, and we’re curious to see what kind of modifiers and their combinations can be encountered there. They add replayability to the standard dungeons and make the endgame more diverse!

While you are here, make sure to check our guide on whether you can play the upcoming Diablo 4 offline. We've also got a guide on whether there is an auction house in Diablo 4.

If you are looking for more information about this game, make sure to check our Diablo 4 multiplayer guide. Also, we've got a Diablo 4 class guide, as well as a Diablo 4 PvP guide.

For more articles like this, take a look at our Guides and Diablo 4 page.