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Atlas of Worlds
ArchitectUromoti, Architect of Expansion
Contains chests full of maps.
CartographyRoom3 incursion room icon.png
Devices baroque hide worlds bespoke.

Madness spread. These maps, all the places on them... None of them exist!


Atlas of Worlds is a Level 3 Incursion room. It is upgraded from Office of Cartography and Surveyor's Study.

The chest of this room has a chance to drop map with VaalVaal
20% increased Quantity of Items found in this Area
20% increased Rarity of Items found in this Area
+10% Monster pack size
Found Items have a 10% chance to drop Corrupted in Area
Area is inhabited by the Vaal

The mini-boss of this room, Uromoti, Architect of Expansion, can drop map-related currency.[1]


The room contains a board that look like an ancient version of Atlas of Worlds.

Version history

Version Changes
  • Maps dropped by special sources such as deterministic chests or league rewards like those found in the Azurite Mine or the Temple of Atzoatl now use your own Atlas to determine which maps to drop, and can therefore drop maps that have been raised above their base tier due to the presence of Watchstones. Maps dropped from these sources now also take into account your Favourite Map selections. If a source such as this cannot find a compatible map from your Atlas to drop (for example, due to too few maps being completed and too few watchstones being socketed for a Tier 16 map on your Atlas to drop), it will drop a random map of the correct tier instead.
  • Based on the tier of the Surveyor's Study sequence of rooms, Architects throughout the present-day temple will now drop map-related currency items.
  • Introduced to the game as core mechanics.
  • Introduced to the game as league mechanics.


  1. version 3.10.0, 3.10.2b patch notes