Progression

Delirium is gated behind one questline, and finishing it is what unlocks the rest of the mechanic - Grand Mirrors, the Simulacrum, and the atlas passives that make the fog worth farming.

Strange Reflection

Delirium's progression is a single questline, from freeing Elder Madox to the pinnacle fight. These are the game's own steps, in its own order.

  1. 1Free the man
  2. 2Free Elder Madox
  3. 3Activate the Delirium Mirror
  4. 4Fight off the Madness
  5. 5Travel to The Withered Willow
  6. 6Speak to Elder Madox
  7. 7Travel to The Withered Willow
  8. 8Find out more about the Strange Tree
  9. 9Speak to Elder Madox
  10. 10Take the Delirium Tablet from Elder Madox
  11. 11Defeat Delirious Map Bosses (0/5)
  12. 12Speak to Elder Madox in The Withered Willow
  13. 13Speak to Elder Madox
  14. 14Take the Liquid Emotions from Elder Madox
  15. 15Take the Amulet from Elder Madox
  16. 16Put an Amulet in the Decanter of Madness
  17. 17Anoint the Amulet at the Decanter of Madness
  18. 18Speak to Elder Madox
  19. 19Investigate the Grand Mirror
  20. 20Activate the Delirium Mirror
  21. 21Find the source of the disturbance
  22. 22Defeat the Twinned Delirious Bosses
  23. 23Interact with the Strange Mirror
  24. 24Speak to Elder Madox
  25. 25Reach the Simulacrum of Delusion
  26. 26Begin the Simulacrum
  27. 27Survive the Raven's Delusions
  28. 28Interact with the Mirror
  29. 29Pick up the Raven's Reflection
  30. 30Return to the Withered Willow
  31. 31Speak to Elder Madox
  32. 32Place the Raven's Reflection in the Withered Willow's Mirror
  33. 33Activate the Mirror
  34. 34Enter the Paracosm
  35. 35Explore the Paracosm
  36. 36Defeat the Raven Trickster

The game data truncates this quest's step list, so the last steps of the chain may be missing.

Bosses

The Raven Trickster is Tangmazu - the game data names him both ways, and Raven-Touched items are described as “warped by the Raven Trickster, Tangmazu”. They are one boss, not two.

The Delirium atlas tree

Complete maps near the Withered Willow to obtain points in this tree. Additionally, gain 6 points each time you defeat the Delirium Pinnacle Boss and you are the area owner.

Unlocked by progression

Are you sure you want to do that?Requires activating a Grand MirrorAreas with Grand Mirrors also have a Delirium Mirror20% chance Shards within Simulacrums allow multiple selections
I see your true nature now!Requires activating a Grand MirrorDelirium Fog may now manifest Shards which add an additional Boss to the Map Boss arena or a guaranteed Grand Mirror
Is that the best you've got?!Requires activating a Grand Mirror50% increased chance to manifest additional Escalation Shards within Delirium Fog
Is this about me... or you?Requires completing a SimulacrumMegalomaniac Jewels found have a 10% chance to allocate 3 notable passive skillsSimulacrum Splinters can drop from Delirium Monsters in level 75+ Map Areas
Recurring NightmaresRequires defeating the Delirium Pinnacle BossAdjust the way Delirium Fog spreads from Grand Mirrors throughout the world
You can't scare me anymore!Requires activating a Grand MirrorUnique Monsters have a chance to drop Potent Emotions when slain within Delirium Fog:5% chance for Humanoids to drop Potent Liquid Melancholy5% chance for Beasts to drop Potent Liquid Ferocity5% chance for Constructs to drop Potent Liquid Contempt
You thought you were free?Requires completing a Simulacrum25% chance an additional Simulacrum is transformed when Delirium Fog reaches 100% Deliriousness

Available from the start

Come on! Face me!Delirium Encounters in Area are 25% more likely to spawn Unique BossesSlaying Unique Monsters pauses the Delirium Mirror Timer for 10 seconds
Get out of my head!Magic Monsters within Delirium Fog have 25% chance to have an additional Delirium Modifier
Grand Mirror Chance5% increased chance for a Grand Mirror to appear on a nearbyMap when Map Bosses are slain within Fog
I know your childhood fears...Liquid Emotions found have a 20% chance to be Ancient Liquid Emotions25% increased Liquid Emotions dropped by Monsters
I'm not alone anymore!Azmeri Spirits within Delirium Fog manifest a Fracturing Mirror every 10 seconds
The mirrors... the mirrors!Delirium Fog in Area spawns 50% increased Fracturing Mirrors
There's nowhere to hide...Delirium Fog always spreads to all maps surrounding Simulacrums
These demons are all your own...Rare Monsters always Manifest Delirium Demons when within Fog
You can't just wake up from this one.Delirium Fog in Area dissipates 30% slowerSimulacrums now spawn Shards between Waves, allowing a single selection:- Escalating Threats- Apex Predators- Pure Emotions

Areas

Garukhan's Tomb level 65
Sunken Pyramid level 65
The Withered Willow level 79 · The Raven Trickster
Loathsome Mire level 80