Stand on the Circular floor panels to light up an area, or toss a few flares to go faster. Keep an eye out for various Boxes like Abandoned Charts as they contain Maps or other rewards. The chance to generate each biome is dependent on the weight of all biomes at each depth. A visual representation can be found on poe.db’s delve biome page. The mines contain many themed chests, often hidden away in dark side areas along a path. Flares are consumable items that can be used to create a temporary lit area.

General Drops

{
• As you delve deeper into the mine these nodes appear more frequently.

|}

• Some nodes on the Subterranean Chart will have no paths shown leading to them.
• The deeper a delve goes into the mine, the more the Crawler’s light radius is reduced.

{

• A mission can randomly occur and the chance of this can be increased or guaranteed with related Atlas passive tree nodes.

|}

• A visual representation can be found on poe.db’s delve biome page.

{

• The character’s effective darkness resistance is reduced by the character’s current depth in the mine.

|}

Dynamite is a consumable item used to destroy fractured walls. The character’s effective darkness resistance is reduced by the character’s current depth in the mine. The game will warn the player if a character’s effective damage resistance is particularly low due to depth. Each node has 1 to 4 paths connected to it, leading to nearby nodes. Each node has a checkpoint, a circle marked on the ground in a chamber at the center of the node. A delve is the exploration of the nearly-infinite Azurite Mine dungeon.
{

• The chance to generate each biome is dependent on the weight of all biomes at each depth.

{

• If the instance is for a delve, it will always contain the full path that the delve will follow.

|}

• When a new mineshaft node is created, it destroys any previously-existing node in the same spot.
• On the other hand, player Quantity does NOT scale your Sulphite.

{

• Note that the costs of some upgrades can become discounted if a player goes unusually long without buying them.

|}{

• You get a Sulphite bonus from Party Quantity as well, but Sulphite is split between all party members in the instance.

|}

|}

Delve

{
• But nodes which contain Fire, Cold, Lightning, Physical, and Mana or Curse items can also be worth chasing to get items with Fractured drop only modifiers.

|}

• A map instance’s Sulphite total is increased by the map’s item quantity bonus as well as by the map’s level.

{

• Dynamite is a consumable item used to destroy fractured walls.

|}{

• The difficulty and rewards of delves increase based on depth in the mine.

|}

• When a player reaches the Azurite Mine for the first time in a given league (using any of their characters in that league) a single mineshaft entrance node is created.
• This means that failed delves will often not cost the full original amount.

In order to start a delve, the player must have enough Sulphite to pay the full cost. This means that failed delves will often not cost the full original amount. The difficulty and rewards of delves increase based on depth in the mine. Paths deeper below the surface contain higher-level monsters, but yield higher-level rewards as well. If the instance is for a delve, it will always contain the full path that the delve will follow.

Biomes

In maps, effective area level is used instead of base area level. On the other hand, player Quantity does NOT scale your Sulphite. You get a Sulphite bonus from Party Quantity as well, but Sulphite is split between all party members in the instance. Some nodes are located behind Fractured Walls as demonstrated in the image to the right.

Valuable Uniques

The character follows a Crawler (mine cart) powered by Voltaxic Sulphite through the mine to a checkpoint. If you want to focus exclusively on Delving you should ignore regular monsters in the map, click the 3 Voltaxic Sulphite piles then leave and start a new one. But it’s more profitable to farm Delve along side other league mechanics as part of your mapping strategy. If the party leader’s character dies inside the instance, the portal’s destination will move to the point where the character died.

Encountering Niko

When a player reaches the Azurite Mine for the first time in a given league (using any of their characters in that league) a single mineshaft entrance node is created. Fractured walls and the areas behind them will not normally appear on the minimap. A dynamite charge will destroy any fractured wall within its blast radius. As you delve deeper into the mine these nodes appear more frequently. Once you’re comfortable with the level of rewards from your Depth, you Delve sideways grabbing valuable nodes along the way.
{

Dynamite

|}
Flare uses cannot be targeted; when used, the flare drops at the character’s feet. Note that the costs of some upgrades can become discounted if a player goes unusually long without buying them.
{

Hidden Loot

|}
These are of Luckzie particular note early in a league due to offering items with drop only affixes including “Subterranean” Prefixes, and “Of the Underground” Suffixes. But nodes which contain Fire, Cold, Lightning, Physical, and Mana or Curse items can also be worth chasing to get items with Fractured drop only modifiers. The deeper you go into the mine, the greater the rewards, and the more dangerous enemies become. During delves, light is normally only present in a circular area around the Crawler. The deeper a delve goes into the mine, the more the Crawler’s light radius is reduced. Starting with The Mines in Act 4, any zone instance can randomly contain Niko, Master of the Depths.