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Continue ShoppingArcane Astrolabes are new currency items introduced in the Path of Exile: Mirage league (3.28) that allow players to apply powerful modifiers to a "Shaped Region" on the Atlas, covering multiple maps. These items increase map difficulty and rewards, creating highly juiced, unique, or league-mechanic-driven content in specific, clustered areas.

| Item | Description |
|---|---|
| Fungal Astrolabe | Adds a Shaped Region containing Blight encounters to a quadrant of the Atlas Defend Cassia to successfully complete Maps within this Shaped Region Blight Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain a Blight Encounter |
| Lightless Astrolabe | Adds a Shaped Region containing Abysses to a quadrant of the Atlas Complete all Abysses to successfully complete Maps within this Shaped Region Abyss Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain an additional Abyss |
| Nameless Astrolabe | Adds a Shaped Region containing Ritual Altars to a quadrant of the Atlas Complete all Rituals to successfully complete Maps within this Shaped Region Ritual Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain Ritual Altars |
| Templar Astrolabe | Adds a Shaped Region to a quadrant of the Atlas Slay the Map Boss to successfully complete Maps within this Shaped Region Map Bosses have increased Difficulty and Reward for each completed Map within the Shaped Region Area is Influenced by the Originator's Memories |
| Grasping Astrolabe | Adds a Shaped Region containing Breaches to a quadrant of the Atlas Stabilise and close all Unstable Breaches to successfully complete Maps within this Shaped Region Breach Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain an additional unstable Breach |
| Runic Astrolabe | Adds a Shaped Region containing Expedition encounters to a quadrant of the Atlas Kill all Runic Monsters after detonating at least half the Remnants to successfully complete Maps within this Shaped Region Expedition Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Area contains an Expedition Encounter |
| Timeless Astrolabe | Adds a Shaped Region containing Legion encounters to a quadrant of the Atlas Kill at least one General in each Legion Encounter to successfully complete Maps within this Shaped Region Legion Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Each Legion is accompanied by a General Your Maps contain an additional Legion Encounter |
| Fruiting Astrolabe | Adds a Shaped Region containing the Sacred Grove to a quadrant of the Atlas Complete all Harvest Plots to successfully complete Maps within this Shaped Region Harvest Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain The Sacred Grove |
| Chaotic Astrolabe | Adds a Shaped Region containing Ultimatum encounters to a quadrant of the Atlas Complete at least 7 Ultimatum waves to successfully complete Maps within this Shaped Region Ultimatum Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain an Ultimatum Encounter |
| Enshrouded Astrolabe | Adds a Shaped Region containing Mirrors of Delirium to a quadrant of the Atlas Earn at least 5 Delirium Rewards to successfully complete Maps within this Shaped Region Delirium Monsters have increased Difficulty and Reward for each completed Map within the Shaped Region Your Maps contain a Mirror of Delirium |
Using an Astrolabe on a map on the Atlas creates a Shaped Region, affecting a quadrant or collection of maps within it.
With these new Astrolabes, Eagon is able to trace her movement, but using them causes dangerous side effects.
When you use an Astrolabe on a Map on the Atlas, a Shaped Region will manifest itself in that quadrant, affecting many of the Maps within it. There are many different kinds of Astrolabes and they apply different types of Shaped Regions. For example, an Abyssal Region, which causes all the maps to have an additional Abyss. Or a Blighted Region, which adds a Blight Encounter.
Speak to Eagon in your Hideout to right click this item and then left click a Map on your Atlas to apply a Shaped Region.

Adds a Shaped Region:

Fully clearing a Shaped Region grants access to a Memory Vault, which contains high-value loot specific to that Atlas quadrant.
Completing maps within these Shaped Regions further increases the rewards—and difficulty—of other maps in the affected region, encouraging strategic, targeted farming.
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