A mission can randomly occur and the chance of this can be increased or guaranteed with related Atlas passive tree nodes. A map instance’s Sulphite total is increased by the map’s item quantity bonus as well as by the map’s level. When a new mineshaft node is created, it destroys any previously-existing node in the same spot.

• Flares are consumable items that can be used to create a temporary lit area.
• A delve is the exploration of the nearly-infinite Azurite Mine dungeon.
• The deeper you go into the mine, the greater the rewards, and the more dangerous enemies become.

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• If the party leader’s character dies inside the instance, the portal’s destination will move to the point where the character died.

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• Each node has 1 to 4 paths connected to it, leading to nearby nodes.

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• In maps, effective area level is used instead of base area level.

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Isolated Nodes with no Paths AKA Dead Wall

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.

Boss Drops

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

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

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• When a new mineshaft node is created, it destroys any previously-existing node in the same spot.

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

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• 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.

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

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.
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• Starting with The Mines in Act 4, any zone instance can randomly contain Niko, Master of the Depths.

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• These hidden paths are blocked by a fractured wall somewhere in the darkness along a side route from a nearby node.

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• In order to clear an uncleared node and receive its rewards, characters must perform delves.

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• The character follows a Crawler (mine cart) powered by Voltaxic Sulphite through the mine to a checkpoint.
• Flare uses cannot be targeted; when used, the flare drops at the character’s feet.
• The mines contain many themed chests, often hidden away in dark side areas along a path.

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Atlas Passives

Some nodes on the Subterranean Chart will have no paths shown leading to them. These hidden paths are blocked by a fractured wall somewhere in the darkness along a side route from a nearby node. The Crawler is used to provide the light needed to delve to undiscovered checkpoints. If characters move ahead of the Crawler, it will speed up to catch up to them; if characters fall behind the Crawler, it will slow or stop. In order to clear an uncleared node and receive its rewards, characters must perform delves. Each delve is an expedition along a path leading from a cleared node’s checkpoint to an adjacent uncleared node’s checkpoint.

General Drops

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 Luckzie 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.