Path of Exile 2: A Comprehensive Guide to Delirium Endgame Events
Path of Exile 2's Atlas map features four major endgame encounters: Rituals, Breaches, Expeditions, and Delirium. Delirium, a returning mechanic from previous PoE leagues, is detailed below.
Understanding the Delirium Fog Mechanic

Atlas map nodes hosting Delirium events are marked with a distinctive white and black icon resembling the Delirium Mirror. You can guarantee a Delirium event by inserting a Delirium Precursor Tablet into a Lost Tower.
Within a Delirium map, locate the Delirium Mirror near your spawn. Activating it unleashes a swirling circle of Fog. This Fog expands, increasing enemy difficulty. Leaving the Fog ends the encounter.
Enemies within the Fog are stronger and drop unique Delirium rewards:
- Distilled Emotions: Used in crafting and anointing.
- Simulacrum Splinters: Used to summon the Pinnacle Boss.
- Fractured Mirrors: Interacting with these spawns additional mobs and loot.
Two random bosses, Kosis and Omniphobia, might appear during a Delirium encounter. These are full-fledged bosses, not just rare enemies.
The Delirium Pinnacle Event: Simulacrum

Delirium rewards include Simulacrum Splinters. Accumulate 300 to create a Simulacrum, placing it in the Realmgate to access a 15-wave challenge. Difficulty escalates with each wave, and Delirium bosses have an increased chance of appearing. Completion grants two Delirium Passive Skill points.
Navigating the Delirium Passive Skill Tree

The Delirium Passive Skill Tree, located within 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 rewards two points, necessitating increased difficulty for each new Notable node.
| Notable Delirium Passive | Effect | Requirements |
|---|---|---|
| Get Out Of My Head! | Waystones have a 20% chance to have an Instilled Emotion effect. | N/A |
| Would You Like To See My Face? | Delirium Fog doubles 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 rewards.
Delirium Event Rewards

Delirium enemies and bosses drop Distilled Emotions. These Currencies anoint amulets with Notable Passive Skills, eliminating the need for Passive Skill Point investment.
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Distilled Emotions also enhance Waystones, increasing Delirious debuff effects. Simulacrum Splinters, obtained from enemies, create the Simulacrum for the Pinnacle event, rewarding Delirium Passive points and a unique item.