Delirium

This page is about the game mechanic. For the league, see Delirium league. For the essence, see Essence of Delirium.

A Mirror of Delirium

Delirium is a zone-wide effect that spawns new enemies and empowers existing ones. This encounter is considered Extra Content and has a baseline 8% chance to appear in any non-unique map area.

Encounter rate

Delirium Mirrors can appear from the Torched Courts in Act 5 onwards at rate >8%. They stop appearing for characters with level 72 and higher for areas with level lower than 65.

In maps, Delirium Mirrors have a base 8% chance to appear in a zone.

Mechanics

Delirium Mirror

A Delirium mirror spawns on a map. It reflects the player's character as shown.

Randomly while players are completing the acts or running Maps, a Mirror of Delirium will spawn. They will always spawn within a close distance from the zone entrance.

Once a player passes through it, it spawns a gray mist that spreads outwards throughout the map, beginning the Delirium encounter.

Encounter

Delirium monsters spawn during an encounter. Reward type is currency (bottom left).

New enemies and hazards can spawn within the mist and existing enemies can receive a Delirium modifier, making them stronger or giving them new attacks. All enemies in the mist are Delirious, giving them increased damage mitigation and damage. The further out you are in the mist, the stronger the effect.

Enemies in the mist can drop Cluster Jewels and Simulacrum SplintersSimulacrum SplinterStack Size: 300Combine 300 Splinters to create a Simulacrum.
Shift click to unstack. (starting at maps).

As you kill enemies inside the mist, a reward bar on the bottom left will start filling up. Filling the bar will cause you to gain the reward type after the Delirium encounter, and can be filled multiple times. When the first bar reaches level 3, a second reward bar will appear, and at level 5 a third reward bar appears.

Scaling

Higher percentages of Delirium increase both monster damage and monster damage reduction. Through empirical testing and official reference points at 100% Deliriousness, it was possible to obtain the following scaling estimates.

Additionally, it is speculated that it provides an overall more multiplier to monster item quantity and rarity. However, there are several caveats to this that are being investigated by the Prohibited Library. Monsters from strongboxes, as well as possibly other monsters that are not immediately spawned on entering an area, do not appear to be affected by this multiplier.

Deliriousness %	Increased Damage	Less Damage Taken	More Monster Item Quantity	More Monster Item Rarity
20%	6%	16%	10%	20%
40%	12%	32%	20%	40%
60%	18%	48%	30%	60%
80%	24%	64%	40%	80%
100%	30%	80%	50%	100%

Timer

The countdown timer displaying when the encounter is about to end.

Delirium encounters only last a short period of time. After a certain period of time, the mist will stop spreading, and start to dissipate outwards in a donut shape. If you step out of the mist for more than 5 seconds, the Delirium encounter will end. Any enemies outside the mist will have their Delirium modifiers removed. The encounter can also be prematurely ended by pressing a button on the bottom right (which can be key bound). Certain actions will pause or extend the time before the mist stops spreading. The mist also stops moving while there are no players in the instance.

The following will pause the mist timer:

• During an Immortal Syndicate Research encounter
• During an Incursion encounter
• During a Legion Timeless Monolith encounter
• During a Breach encounter
• Being within range of an active Blight
• While in the Sacred Grove
• While a Ritual Altar is activated

The following will extend the mist timer:

• Opening a Strongbox
• Defeating a monster holding an Essence
• Capturing a red Beast
• Defeating an Immortal Syndicate group
• An Abyss crack starts moving to the next direction
• Completing a Blight encounter
• Defeating a Metamorph
• Defeating a Harbinger
• Entering a Forbidden Sanctum portal

Delirious map modifier

Map items can be affected by a special modifier which covers the entire map in mist permanently. The mechanics are similar to the Delirium that can randomly occur in a map, with the following exceptions:

• There is no Delirium Mirror. Delirium is already running from the moment the map begins.
• There is no timer. Delirium will remain in effect for the duration of the map.
• Rewards drop each time the bar is filled, instead of dropping only when the timer expires.

This modifier has five levels of strength, expressed as a percentage -- 20%, 40%, 60%, 80%, or 100%. The higher the percentage, the tougher the monsters and the greater the rewards. Enemies at very high Delirious percents are extremely tough, with even normal rarity enemies becoming comparable to high tier map bosses.

Map items can drop with this modifier present at any of the five levels of strength. Delirium orbs can be used on map items. An orb adds 20% delirium to a map item that does not already have the delirious modifier, or increases the map's existing delirium strength by one level (20%).

Rewards

Icon	Reward
	Miscellaneous items
	Weapons
	Armour
	Jewellery
	Unique items
	Skill gems
	Currency
	Divination cards
	Labyrinth items
	Map fragments
	Maps
	Talismans
	Perandus items
	Prophecy items
	Essences
	Breach items
	Harbinger items
	Abyss items
	Fossils
	Scarabs
	Incubators
	Blight items
	Catalysts

Strange Voice

Main page: Strange Voice

Starting from The Torched Courts (Act 5), a voice starts talking to the player whenever you touch a Mirror of Delirium. He has unique lines in Act zones.

Related items

Item		Stats
Abyssal Delirium OrbAbyssal Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Abyss Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Amorphous Delirium OrbAmorphous Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Metamorph reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Armoursmith's Delirium OrbArmoursmith's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Armour reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Blacksmith's Delirium OrbBlacksmith's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Weapons reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Blighted Delirium OrbBlighted Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Blight reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Cartographer's Delirium OrbCartographer's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Map Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Delirium OrbDelirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Generic Item reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Diviner's Delirium OrbDiviner's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Divination Cards reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Fine Delirium OrbFine Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Currency Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Foreboding Delirium OrbForeboding Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Harbinger Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Fossilised Delirium OrbFossilised Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Fossils reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Fragmented Delirium OrbFragmented Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Fragments reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Imperial Delirium OrbImperial Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Labyrinth Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Jeweller's Delirium OrbJeweller's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Trinkets reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Kalguuran Delirium OrbKalguuran Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Expedition Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Obscured Delirium OrbObscured Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Breach Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Portentous Delirium OrbPortentous Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Prophecy Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Primal Delirium OrbPrimal Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Talismans reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
SimulacrumSimulacrumItem Quantity: +5%5% increased Quantity of Items found in this AreaHow do you defeat that which dwells within you?Can be used in a personal Map Device.	1	5% increased Quantity of Items found in this Area
Singular Delirium OrbSingular Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Unique Items reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Skittering Delirium OrbSkittering Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Scarabs reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Thaumaturge's Delirium OrbThaumaturge's Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Gems reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Timeless Delirium OrbTimeless Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Legion reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A
Whispering Delirium OrbWhispering Delirium OrbStack Size: 10Modifies a Map item adding layers of Delirium with the Essences reward typeRight click this item then left click a Map item to apply it. Can apply up to 5 to a single Map item. Shift click to unstack.	1	N/A

List of Delirium modifiers

Main page: List of delirium modifiers

Name	Monster rarity	Effect(s)
Banishing Flame	Normal/Magic
Cascading Storm	Normal/Magic
Crushing Terror	Normal/Magic
Diluting Touch	Normal/Magic	Diluting Touch debuff on hit
Eroding Touch	Normal/Magic	Eroding Touch debuff on hit
Paralysing Touch	Normal/Magic	Paralysing Touch debuff on hit
Putrify Dead	Normal/Magic
Shatter Dead	Normal/Magic
Spatial Distortion	Normal/Magic
Spawn Dead	Normal/Magic
Vengeful Blast	Normal/Magic
Vengeful Bones	Normal/Magic
Vengeful Chase	Normal/Magic
Vengeful Gang	Normal/Magic
Vengeful Grip	Normal/Magic
Vengeful Pack	Normal/Magic
Vengeful Skyfire	Normal/Magic
Vengeful Soul	Normal/Magic
Vengeful Stalker	Normal/Magic
Wasting Touch	Normal/Magic	Wasting Touch debuff on hit
Winter Whorl	Normal/Magic
Bolt Cross	Rare/Unique
Burrowing Blade	Rare/Unique
Conflagrating Path	Rare/Unique
Crushing Leap	Rare/Unique
Frozen Flume	Rare/Unique
Glaciator	Rare/Unique
Icicle Wreath	Rare/Unique
Jagged Swell	Rare/Unique
Ring of Fire	Rare/Unique
Scatter Storm	Rare/Unique
Scorched Earth	Rare/Unique
Shockbomb	Rare/Unique

Version history

Version	Changes
3.20.0	Delirium mist now pauses for ten seconds when you first interact with the Sanctum Map in an area.
3.18.0	The chance for Map Areas to contain a Mirror of Delirium no longer increases by a small amount for each other league, atlas or master mechanic that appears in that area. Instead, Map Areas now have an 8% chance to contain a Mirror of Delirium, with campaign areas from the Torched Courts onwards having a slightly higher chance.
3.14.0	Reduced the chance for Map Areas to contain a Delirium Mirror by approximately 20%. The chance to encounter a Zana mission containing a Delirium encounter has also been lowered by the same amount. The Quantity and Rarity bonus applied to monsters from Delirium encounters has been lowered as is now more consistent across Monster rarities. Previously, Monsters of Normal rarity had a disproportionately larger amount of Quantity and Rarity being applied to them compared to Monsters of higher rarities.
3.11.0	Delirium has been added to the core game. From the Torched Courts onwards, you'll have approximately a 5% chance to encounter a Mirror of Delirium in each area. Once you reach the Atlas, that chance will increase by a small amount for each other league, atlas or master mechanic that appears in that area. In other words, if your goal is to encounter Mirrors of Delirium then you are encouraged to use your Zana modifiers, master missions, sextants, and whatever else you have available to you. You'll now have a greater chance of finding Cluster Jewels through Delirium encounters, proportional to the number of rewards you earn during that encounter.
3.10.1c	Active Legion encounters now cause Delirium mist to pause its movement during both the Frozen phase and the Combat phase (previously was just the Frozen phase). Active Blight encounters now cause Delirium mist to pause its movement while you are within a large radius of Blight Portals, rather than the Ichor Pump. This is because Blight Portals can sometimes spawn very far away!
3.10.0e	Delirium mist now stops moving while all players in the area are engaged in a Blight Encounter, Betrayal Research encounter, Legion Encounter, Breach or Incursion. Activating or completing several time-consuming gameplay elements causes the Delirium mist to stop moving for a set amount of time based on the encounter type. The following conditions cause the Delirium mist to stop moving: an Abyss crack reaching its next location, defeating a Harbinger, defeating a Metamorph, defeating a Red Bestiary beast, defeating an Essence Rare monster, opening a Perandus chest, opening a Strongbox, completing a Blight encounter, completing a Legion encounter and defeating a Betrayal target. When you fulfill the requirements for a reward for the third time in a Delirium encounter, an additional reward type is now added and its requirements automatically fulfilled for the first reward. The new reward is fulfilled in tandem with the initial reward. In addition, when you fulfill the requirements for the initial reward a fifth time, a second reward type is added (again with the requirements automatically fulfilled for the first reward). These rewards are chosen at the exclusion of each other. Reduced the likelihood of receiving Generic, Weapon, Armour and Trinket reward types. Delirium mist now stops moving when no players are in the instance. This should allow players to leave an area to vendor and trade items during a Delirium encounter more freely.
3.10.0d	Delirium modifiers are now applied on a per-pack basis. This means that a given pack of monsters will only have a single Delirium modifier, rather than potentially having a variety of different modifiers. Reduced the difficulty of Delirium monsters at each mist depth. Significantly reduced the chance of Delirium modifiers appearing on monsters.
3.10.0	Introduced to the game.