In Path of Exile 3.28 (Mirage League), the Atlas Passive Tree for Breach has been significantly reworked as the mechanic officially goes "core" with new systems and rewards.
Breach Atlas Tree
Count
Name
Category
Description
5
Breach Hiveblood Quantity
Normal
5% increased Quantity of Hiveblood found in your Maps
4
Breach Pack Size
Normal
Breach Monsters in your Maps have 5% increased Pack Size
3
Breach Wombgift Quantity
Normal
5% increased Quantity of Wombgifts found in your Maps
1
Swelling Ranks
Notable
Breach Monsters in your Maps have 20% increased Pack Size
20% increased Quantity of Wombgifts found in your Maps
Breach Atlas Tree
Count
Name
Category
Description
8
Breach Chance
Normal
Your Maps have +8% chance to contain Breaches
Scarabs dropped in your Maps have 8% increased chance to be Breach Scarabs
1
Fortified Dominance
Notable
Breach Hives in your Maps have 40% increased chance to lead to Fortresses
Breach Bosses in your Maps have 25% chance to be Duplicated
1
Violent Skirmish
Notable
Breach Encounters in your Maps are 20% faster
Breach Atlas Tree
Count
Name
Category
Description
4
Breach Flammable Burrows
Normal
Breach Hives in your Maps have 20% increased number of Flammable Burrows
4
Additional Unstable Breach Chance
Normal
Your Maps which contain Unstable Breaches have 10% chance to contain an additional Unstable Breach
1
Massing Forces
Notable
Your Maps which contain Unstable Breaches have 10% chance to contain two additional Unstable Breaches
1
Adaptive Reaction
Notable
Flammable Burrows in your Maps have 100% increased Explosion Radius
Hive Monsters in your Maps have 4% increased Toughness per Flammable Burrow destroyed
Hive Encounters in your Maps grant 2% increased Hiveblood and Wombgifts per Flammable Burrow destroyed
(The higher toughness a monster has, the less damage it takes. A monster with 100% increased Toughness takes 50% less damage, a monster with 200% increased toughness takes 67% less damage, and so on. Reduced toughness causes monsters to take more damage)
Breach Atlas Tree
Count
Name
Category
Description
1
Broken Border
Notable
Your Maps have +20% chance to contain Breaches
Scarabs dropped in your Maps have 20% increased chance to be Breach Scarabs
2
Breach Magic Monster Chance
Normal
Breaches in your Maps spawn 8% increased Magic Monsters
1
Evolving Hives
Notable
Breaches in your Maps spawn 25% increased Magic Monsters
Breaches in your Maps spawn 25% increased Rare Monsters
1
Breach Magic Monsters and Chance
Normal
Breaches in your Maps spawn 6% increased Magic Monsters
Your Maps have +6% chance to contain Breaches
Scarabs dropped in your Maps have 4% increased chance to be Breach Scarabs
Breach Atlas Tree
Count
Name
Category
Description
2
Provisioning Wombgift Chance
Normal
Wombgifts found in your Maps have 25% increased chance to be Provisioning
1
Fecund Colony
Notable
Breach Bosses in your Maps have 50% chance to drop an additional Wombgift
Grasping Coffers in your Maps have 50% increased chance to contain Wombgifts
2
Lavish Wombgift Chance
Normal
Wombgifts found in your Maps have 25% increased chance to be Lavish
2
Mysterious Wombgift Chance
Normal
Wombgifts found in your Maps have 25% increased chance to be Mysterious
2
Ancient Wombgift Chance
Normal
Wombgifts found in your Maps have 25% increased chance to be Ancient
Key Changes in 3.28
Multiple Modes: Breach can now be played in different "modes" (e.g., Unstable Breach or Hive farming), allowing you to tailor your strategy.
New Clusters: Several new Breach clusters have been added to the Atlas Tree.
Reward Rework: The Breach reward "tree" no longer generates rare weapons or quivers but can still produce Foulborn unique weapons.
Fortress Mechanic: Accessing the "Fortress" now requires investment through specific Atlas nodes or scarabs; it is no longer a guaranteed part of the encounter.
Investment Cost: Unlike in 3.27, Breach is no longer "free." To make it profitable, you must invest points into the Atlas tree and use Breach Scarabs.
