League mechanics: Delirium.
Location: Delirium has a 5% chance to appear in a zone, from the Torched Courts in Act 5 onwards.
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 entire map, and the delirium encounter begins.
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 Splinters (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.
Both monster increased damage, and less damage taken escalate the higher the percentage of delirious. Through empirical testing, it was possible to obtain accurate scaling estimates:
Delirious | Increased Damage | Less Damage Taken |
---|---|---|
20% | ~7% | ~19% |
40% | ~13% | ~38% |
60% | ~18% | ~58% |
80% | ~24% | ~77% |
100% | 30% | 96% |
Delirium encounters only last a short period of time. After a certain period of time, the mist will stop spreading, and a countdown begins. 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:
The following will extend the mist timer: