Extra Content

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Extra Content is a keyword that represents content from previous challenge leagues that can be encountered randomly in Maps, a few of which are also encounterable in the Acts.

By default, Extra Content appears at a base 8% in maps. This can be increased by various Notables and small passives on the Atlas Passive Skill Tree, or reduced to 0% through various Notables. Things that modify the rate of Extra Content do not prevent it from being spawned via guaranteed encounters e.g. Scarabs.

The Stream of Consciousness Keystone multiplies the base chance by 1.5x (or 12% base chance).

Currently, Extra Content includes the following:

• Abysses
• Breaches
• Blights
• Expedition Encounters
• Legion Encounters
• Metamorph Encounters
• Mirrors of Delirium
• Monsters Imprisoned by Essences
• Ritual Altars
• Rogue exiles (Anarchy)
• The Sacred Grove (Harvest)
• Shrines (Domination)
• Smuggler's Caches (Heist)
• Strongboxes (Ambush)
• Tormented Spirits (Torment)

Version history

Version	Changes
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 Abyss, Ambush, Blight, Breach, Domination, Essence, Heist, Legion, Metamorph and Torment encounters by 20%. The chance to encounter a Zana mission containing any of these mechanics has also been lowered by the same amount. (Normalized all content except Mirrors of Delirium to 8%)