Delve Mechanics Guide


1. Introduction
2. Niko
3. Voltaxic Sulphite
4. Azurite
5. The Crawler
6. Azurite
7. Darkness
8. Tips and Tricks


Left untouched for over 250 years, the Azurite Mine has been consumed by a malevolent darkness that cast out the Eternal Empire. Niko, an inventor, has harnessed the power of Voltaxic Sulphite to create a machine called the Crawler that can pierce the darkness.

Delve is Path of Exile’s first Infinite Dungeon Crawler. By collecting the scattered Sulphite found throughout Wraeclast, the player is able to power Niko’s Crawler and delve into the depths of the Azurite Mines

The Azurite Mines were introduced into POE in 3.4 and added into the core game in 3.5.

Niko the Mad

Niko the Mad is one of the Masters of Wraeclast. He is first encountered in Act 4, The Mines. Once Niko has been discovered and the player has interacted with him, they will gain access into the The Mine Encampment, located on the world map. The encampment is the main place where the player will interact with Niko, The Voltaxic Generator, and the stash tabs.

  • Main Master of the Azurite Mines.
  • Found in Act 4
  • Sells Resonators with an occasional Fossil

Voltaxic Sulphite

Voltaxic Sulphite is the primary resource used to power Niko’s Crawler. This resource can be found from Act 4 and on with up to 3 Sulphite Veins per instance. The higher the zone level, the more Sulphite that the player will receive. Quantity on the map also affects the amount of Sulphite that can be acquired. The amount of Voltaxic Sulphite that the player can hold

  • Found in Act 4
  • Used to power The Crawler
  • Sulphite can spawn 1 to 3 caches within an instance
  • Deeper Delves provide more loot




The Crawler

Niko the Mad’s main invention, The Crawler, is used to navigate undiscovered areas of the Azurite Mines. This device is primarily fueled by Sulphite provides the player the ability to “Delve” deeper into the Azurite Mines. As The Crawler travels, it releases a long strand of corded lights along its path. These lights illuminate the pathways between completed nodes.




Azurite is the main resource located within the Azurite Mines. This resource is used primarily to upgrade your crawler allowing you to progress deeper into the mines.

  • Main Resource in Mines
  • Used to upgrade The Crawler


There are 3 different rooms that contain large deposits of Azurite. Each one of these rooms can have a tier from 1 to 3, 3 being the highest.

Azurite can also be found in Azurite Veins and Fissures. These typically contain small amounts found along pathways. It is primarily used on the Voltaxic Generator to upgrade The Crawler.



The Mine Encampment


Voltaxic Generator





Fractured Walls

Fractured Walls are randomly occurring You will need both Flares and Dynamite for this step. When exploring the possible locations, you are looking for a fractured wall located somewhere in The Darkness. You can find this on the mini-map marked with this symbol:

Once you have located The Fractured wall, it can destroyed by using dynamite.


Tips and Tricks

This is a compiled list of some precautions one should consider before facing this challenge.



Cold Damage Mitigation:

  • Purity of Ice - Grants an additional 4% Maximum Cold Resistance.
  • Sapphire Flask - Increases Maximum Cold Resistance during flask effect.
  • Aquamarine Flask - Grants a 20% chance to avoid ALL Cold Damage during flask effect.
  • Fortify - Grants 20% reduced damage taken from ALL damage types.

Darkness Resistance Mitigation:

Dangerous Monsters

Many of the monsters have "on death" effects that can make them very deadly. Being able to Freeze or Shatter is a very useful tactic when dealing with these monsters.

Living Azurite

These monsters can be very deadly if the player isn't careful. Once the Azurite encounter is completed, a small blue shock waves will appear and kill the Azurite Monsters. The Living Azurite will then hover into the air and release a barrage of Cold Damage projectiles.


Ice Golems


Fire Dogs

Nemesis Encounters?

fungal caverns zombies


Here are all the possible encounters.



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