Extra Content

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

By default, most sources of Extra Content appear at a base chance of approximately >8% in maps. Older mechanics may have different spawn chance calculations which have never been officially published in patch notes. This chance 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.

Currently, Extra Content includes the following:

Extra content spawn chance

Mechanic	League	Base spawn chance	Associated rewards
Abysses	Abyss league	~8%	Stygian ViseStygian ViseHas 1 Abyssal Socket, Abyss Jewels
Alva missions	Incursion league	~7%	Access to the Temple of Atzoatl
Breaches	Breach league	~8%	Breachstones, breachstone splinters
Blights	Blight league	~8%	Oils
Einhar missions	Bestiary league	~7%	Captured beasts for beastcrafting
Niko missions	Delve league	~7%	Sulphite for the Azurite Mine
Expedition Encounters	Expedition league	~8%	Logbooks, Expedition vendor currency
Jun missions	Betrayal league	~7%	Veiled items, Immortal Syndicate Safehouse rewards
Legion Encounters	Legion league	~8%	Emblems, emblem splinters
Mirrors of Delirium	Delirium league	~8%	Simulacrum SplinterSimulacrum SplinterStack Size: 300Combine 300 Splinters to create a Simulacrum.s, Delirium Orbs
Monsters Imprisoned by Essences	Essence league	Unknown	Essences
Ritual Altars	Ritual league	~8%	Ritual VesselRitual VesselStack Size: 10Stores the monsters slain for the first time from a completed Ritual Altar for future useRight-click this item then left-click a Ritual Altar to store the monsters from the completed Ritual in this item. Cannot be used on a Ritual in a map opened with a Blood-Filled Vessel.s, Ritual SplinterRitual SplinterStack Size: 100Combine 100 Splinters to create a Ritual Vessel.s, Omens
Rogue exiles	Anarchy league	Unknown
The Sacred Grove	Harvest league	~8%	Lifeforce
Shrines	Domination league	Unknown	Shrine buffs
Smuggler's Caches	Heist league	Unknown	Contracts, Blueprints, Rogue's MarkerRogue's MarkerStack Size: 50000Creates a portal to the Rogue Harbour from a Town or Hideout Used as Currency for services in the Rogue HarbourRight click on this item while in a Town or Hideout to use it.s
Strongboxes	Ambush league	24%
Tormented Spirits	Torment league	Unknown
Ultimatum Encounters	Ultimatum league	~8%	Catalysts

Note that previous league mechanics that did not go core (e.g. Invasion, Rampage, Talisman, Harbinger, Warbands, Tempest, Synthesis, Sentinel, Lake of Kalandra, Crucible, Trial of the Ancestors, Affliction, etc.) are not considered Extra Content. Other former league mechanics that were part of the core game but were subsequently removed (e.g. Beyond, Prophecy, Nemesis, Bloodlines, Archnemesis, Perandus, Metamorph) are not considered "Extra Content" as well.

Related Atlas passive skills

Name	Stats
Back to Basics File:NewAtlasKeystone3 (AtlasTrees) passive skill icon.png	Your Maps randomly have between 0 to 80% more Explicit Modifier Effect Extra Content cannot appear in your Maps Cannot apply Influence to your Maps [1]
Unfettered Concentration File:NewAtlasKeystone1 (AtlasTrees) passive skill icon.png	Extra Content has no base chance to appear in your Maps Maximum of one type of Extra Content in your Maps 100% increased Effect of Small Atlas Passive Skills for Extra Content [1]
Black Thumb	Your Maps have no chance to contain the Sacred Grove Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Harvest Scarabs [1]
Dimensional Barrier	Your Maps have no chance to contain Breaches Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Breach Scarabs [1]
Fungal Remission	Your Maps have no chance to contain Blight Encounters Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Blight Scarabs [1]
Loved by the Sun	Your Maps have no chance to contain Abysses Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Abyss Scarabs [1]
Ominous Silence	Your Maps have no chance to contain Mirrors of Delirium Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Delirium Scarabs [1]
Sealed Domain	Your Maps have no chance to contain Legion Encounters Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Legion Scarabs [1]
Secular Focus	Your Maps have no chance to contain Ritual Altars Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Ritual Scarabs [1]
Servant of Order	Your Maps have no chance to contain Ultimatum Encounters Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Ultimatum Scarabs [1]
Straight and Narrow	Your Maps have no chance to contain Smuggler's Caches Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Rogue's Markers, Contracts and Blueprints cannot be found in Your Maps [1]
Trade Embargo	Your Maps have no chance to contain Expedition Encounters Your Maps have +2% chance to contain other Extra Content that can be turned off through Atlas Passives Scarabs found in your Maps cannot be Expedition Scarabs [1]

Version history

Version	Changes
3.23.0	Ultimatum has been added to the core game, replacing Metamorph. You will have approximately an 8% chance to find the Trialmaster and his Trials of Chaos in Maps. Metamorph has been removed from the core game.
3.20.0	We want to improve on the concept that the Atlas Tree allows players to invest into leagues that they enjoy, and have added new clusters to the passive tree for league content that can be blocked through Atlas Passive Skills. We've also increased the chances for such league content to appear.
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. Added a new Atlas Keystone Passive Skill, Stream of Consciousness, which grants "Your Maps cannot be modified by Fragments" and "Your Maps have 50% more Base chance to contain Extra Content". "Extra Content" as a keyword is introduced (see: Stream of Consciousness)
3.14.0	Increased the chance for Map Areas to contain The Sacred Grove by 60%. The chance to encounter a Zana mission requiring you to complete a Harvest encounter has also been increased by the same amount. 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. 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.
1.0.0	Rogue Exiles will start to spawn in all leagues (including Race events) at around 60% of the rate that they appear in Anarchy.