Spend Azurite on your Voltaxic Generator PoE

A delve is the exploration of the nearly-infinite Azurite Mine dungeon. The character follows a Crawler (mine cart) powered by Voltaxic Sulphite through the mine to a checkpoint. Players can start delving from Act 4 onwards, when they reach The Mines and start encountering Niko, Master of the Depths.

Voltaxic Generator

The Voltaxic Generator is a device located in the Mine Encampment at the entrance of the Azurite Mine. The Voltaxic Generator lets you permanently upgrade your character’s Delve-related capabilities using Voltaxic Sulphite, as described below.

Sulphite

Voltaxic Sulphite — usually just called Sulphite — is a nontradable resource. It appears on the minimap as a golden yellow mineral . It is earned during play, and spent on Delve-related upgrades and resonators.

Every delve has a cost paid in Voltaxic Sulphite. The cost depends on the distance between the two nodes and the depth of the destination node, up to a maximum of 1100 Sulphite per delve. In order to start a delve, the player must have enough Sulphite to pay the full cost. But the cost is not paid all at once; instead, it is paid gradually as a Delve proceeds. This means that failed delves will often not cost the full original amount.

Sulphite is earned during play outside the mine. Starting with The Mines in Act 4, any zone instance can randomly contain Niko, Master of the Depths. These instances will include three caches of Sulphite. Clicking on a cache will summon Niko to harvest it, adding the Sulphite to that character’s total, as well as to the total of nearby characters. The higher the instance’s level, the more Sulphite is gained.

Sulphite can also be earned in maps. Selecting a Niko Atlas mission at the Map Device will guarantee that Niko and Sulphite caches appear in that map’s instance. A Niko Atlas mission can also randomly occur if no Atlas mission is selected at the Map Device. A map instance’s Sulphite total is increased by the map’s item quantity bonus as well as by the map’s level. Certain Scarabs can be used along with a map in the Map Device to guarantee a Niko encounter, and to increase a map instance’s Sulphite rewards.

A character can only hold a limited amount of Sulphite at a time. A player can permanently upgrade a character’s maximum Sulphite capacity at the Voltaxic Generator in the Mine Encampment using Azurite.

Sulphite Capacity
Upgrade Level Sulphite Capacity Cost
0 1,200 0
1 1,800 15
2 2,400 102
3 3,000 187
4 4,000 300
5 5,200 444
6 6,400 630
7 9,000 865
8 12,500 1,016
9 17,500 1,496
10 22,750 2,143
11 30,000 5,271
12 38,500 12,962
13 46,000 21,521
14 55,000 33,728
15 65,000 54,709

A player can use Sulphite at the Voltaxic Generator to purchase various permanent upgrades to a character’s Delve-related capabilities. These upgrades and their costs are discussed below. Note that the costs of some upgrades can become discounted if a player goes unusually long without buying them.

A player can also use Sulphite to buy resonators from Niko, Master of the Depths at the Mine Encampment.

Buy PoE Currency Cheap

Delve Atlas Passive Tree

Count Name Category Description
8 Delve Sulphite Quantity Normal
  • Voltaxic Sulphite Veins and Chests in your Maps contain 3% increased Sulphite
1 Mining Byproducts Notable
  • Sulphite Veins and Chests in your Maps have 10% chance to also contain an equal amount of Azurite

Delve Atlas Passive Tree

Count Name Category Description
1 Mad Devotion Notable
  • Your Maps have 4% chance to grant an additional Niko Mission on Completion

Delve Atlas Passive Tree

Count Name Category Description
6 Delve Mission Chance Normal
  • Your Maps have 1% chance to grant an additional Niko Mission on Completion
1 Sulphite Infusion Notable
  • Your White Tier Maps grant 200 additional Voltaxic Sulphite on Completion
  • Your Yellow Tier Maps grant 350 additional Voltaxic Sulphite on Completion
  • Your Red Tier Maps grant 500 additional Voltaxic Sulphite on Completion

Delve Atlas Passive Tree

Count Name Category Description
1 Guarded Hoards Notable
  • Voltaxic Sulphite Veins and Chests in your Maps have 5% chance to contain double Sulphite
  • Sulphite Veins and Chests in your Maps are guarded by Sulphite-hoarding Monsters
1 Packed with Energy Notable
  • You gain +1% to all maximum Elemental Resistances for each Voltaxic Sulphite Vein or Chest found in your Maps
  • You gain 35% increased Damage for each Voltaxic Sulphite Vein or Chest found in your Maps
  • You gain 15% increased Movement Speed for each Voltaxic Sulphite Vein or Chest found in your Maps

    • Reminder Text:

  • (Maximum Resistances cannot be raised above 90%)

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