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Path of Exile 2: Delirium Guide – Fog Mechanics, Passives, & Rewards

Author : Alexander

Jan 26,2025

Path of Exile 2: A Comprehensive Guide to Delirium Endgame Events

Path of Exile 2 introduces four major endgame Atlas map events: Rituals, Breaches, Expeditions, and Delirium. This guide focuses on Delirium, a returning mechanic from previous leagues, detailing how to initiate events, navigate the encounter, utilize the passive skill tree, and maximize rewards.

Understanding the Delirium Fog Mechanic

On the Atlas, Delirium Mirrors are represented by a distinctive black and white icon. You can guarantee a Delirium event by placing a Delirium Precursor Tablet in a Lost Tower. Activating the multicolored, shattered glass Delirium Mirror initiates the encounter, enshrouding you in a spreading circle of Fog.

The Fog's radius expands, increasing enemy difficulty. Leaving the Fog ends the encounter. Enemies within the Fog are enhanced and drop unique Delirium rewards: Distilled Emotions (used in crafting) and Simulacrum Splinters (for summoning the Pinnacle Boss). Fractured Mirrors within the Fog spawn additional mobs and loot.

Random boss encounters with Kosis and Omniphobia can occur during a Delirium event, but these are not Pinnacle bosses (though they may appear during the Simulacrum).

The Delirium Pinnacle Event: Simulacrum

High-tier Waystones yield Simulacrum Splinters. Accumulating 300 splinters allows crafting a Simulacrum, which, when placed in the Realmgate, transports you to a challenging 15-wave encounter. Difficulty escalates with each wave, increasing the likelihood of encountering Delirium bosses. Completing the Simulacrum awards two Delirium Passive Skill points.

The Delirium Passive Skill Tree

Accessible via the Atlas Passive Skill Tree (top-left button on the Atlas Map, then top-right), the Delirium Passive Skill Tree (distinguished by its white coloration and mirror shape) offers modifiers to enhance rewards or add complexity. It features eight Notable nodes and eight nodes that increase Simulacrum difficulty. Each new Notable node requires increasing Simulacrum difficulty.

Notable Delirium Passive Nodes:

Notable Delirium Passive	Effect	Requirements
Get Out Of My Head!	Waystones have a 20% chance to include an Instilled Emotion effect.	N/A
Would You Like To See My Face?	Doubles Fog difficulty scaling and Splinter stack size.	Get Out Of My Head!
You Can't Just Wake Up From This One	Delirium Fog dissipates 30% slower.	N/A
I'm Not Afraid Of You!	Delirium Bosses have 50% increased Life, but drop 50% more Splinters.	You Can't Just Wake Up From This One
They're Coming To Get You...	Unique Bosses spawn 25% more often; slaying Rares pauses Fog dissipation.	N/A
Isn't It Tempting?	30% chance for an extra reward; Delirium Demons deal 30% increased Damage.	N/A
The Mirrors... The Mirrors!	Delirium Fog spawns Fractured Mirrors twice as often.	N/A
It's Not Real, It's Not Real!	Delirium enemies drop 50% more reward progress; Fog dissipates 50% faster.	N/A

Prioritize "You Can't Just Wake Up From This One," "Get Out Of My Head!," and "They're Coming To Get You" for optimal reward increases without significant drawbacks.

Delirium Event Rewards

Delirium Fog-affected enemies and bosses drop Distilled Emotions. These Currencies are used for Amulet Anointing (applying innate Notable Passive Skills) and adding guaranteed Modifiers to Waystones (increasing mob density and power).

Simulacrum Splinters, also dropped by enemies, combine to create the Simulacrum for the Pinnacle event, rewarding Delirium Passive points and a guaranteed Unique item.

All PoE 2 Distilled Emotions:

Distilled Ire Distilled Guilt Distilled Greed Distilled Paranoia Distilled Envy Distilled Disgust Distilled Despair Distilled Fear Distilled Suffering Distilled Isolation

Mastering the Delirium encounter requires strategic use of the passive skill tree and understanding the risk/reward balance of its various nodes. Good luck, Exile!