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

Path of Exile 2's Atlas features four major endgame encounters: Rituals, Breaches, Expeditions, and Delirium. Delirium, a returning mechanic from the original Path of Exile, is detailed in this guide, covering event initiation, gameplay mechanics, the Simulacrum Pinnacle map, the Delirium Passive Skill Tree, and rewards.

Understanding Delirium and the Fog Mechanic

Atlas map nodes offering guaranteed endgame events display specific icons. Delirium Mirrors are indicated by a black and white icon resembling the mirror itself. Placing a Delirium Precursor Tablet in a Lost Tower guarantees a Delirium event on that node.

Within a Delirium map, locate the multicolored, shattered-glass Delirium Mirror near your spawn. Approaching it triggers a ghostly energy effect, and interacting with the mirror initiates the encounter, encircling you in a expanding ring of Delirium Fog.

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

Random boss encounters with Kosis and Omniphobia (full boss HP bars) may occur; these aren't Pinnacle bosses, but can appear during the Pinnacle event.

Delirium Pinnacle Event: The Simulacrum

Each endgame event provides items to summon a Pinnacle Boss. High-tier Waystones within Delirium Fog yield Simulacrum Splinters. Accumulating 300 splinters allows crafting a Simulacrum for the Realmgate.

Activating the Simulacrum initiates a challenging 15-wave encounter, with increasing difficulty. Delirium bosses have a higher chance of spawning in later waves. Completion rewards two Delirium Passive Skill points.

The Delirium Passive Skill Tree

The Delirium Passive Skill Tree, accessible via the Atlas Passive Skill Tree (top-left button on the Atlas Map, then top-right), modifies Delirium events. It features eight Notable nodes and eight nodes increasing Simulacrum difficulty. Each Simulacrum completion grants two passive points, requiring increased difficulty for each new Notable node.

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

PoE 2 Delirium Event Rewards

Delirium Fog-affected enemies drop Distilled Emotions. Bosses also frequently drop them. These currencies anoint amulets with Notable Passive Skills, avoiding passive point investment. They can also add guaranteed modifiers to Waystones, increasing Delirium debuff effects.

Simulacrum Splinters create Simulacrums for the Realmgate, leading to a 15-wave Simulacrum event. Completion rewards Delirium Passive points and a guaranteed unique item.

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This encompasses Distilled Ire, Guilt, Greed, Paranoia, Envy, Disgust, Despair, Fear, Suffering, and Isolation.