Guide:Forbidden Sanctum layouts

This is a guide on the subject of the Forbidden Sanctum layouts.

Last updated on March 4, 2023.

This guide explains layouts of rooms in the Forbidden Sanctum, as well as tips to navigate safely for challenge runs. Note that these layouts may be mirrored vertically/horizontally, or rotated.

Legend

• Enemies:
  • Red dot: Boss/miniboss
  • Green dot: Guard
  • Green number: Guards, spawning in waves
  • Blue dot: Regular monster
  • Blue/green line between dots: Alternative spawn locations
• Traps:
  • Red cross: Fire Skull
  • Blue X: Mana Rune Square
  • Light blue circle: Ice Trap
  • Red circle: Rolling Exarch Boulder
  • Red solid line: Laser
• Misc:
  • Red dotted line: Boss/miniboss aggro proximity (for pre-stacking mines/traps, etc)
  • Yellow arrows: Shortcuts/gaps/ledges

Floor 1

Forbidden Sanctum Floor 1 annotated minimaps

Minimap	Room Name	Strategy
	Chambers of Inscription (Layout 1/3)
	Chambers of Inscription (Layout 2/3)
	Chambers of Inscription (Layout 3/3)
	Templar Annals (Layout 1/2)
	Templar Annals (Layout 2/2)
	Abandoned Library
	Holy Trials
	Scriptorium (Miniboss Room)
	Candlelit Chapel (Boss Room)

Floor 2

Forbidden Sanctum Floor 2 annotated minimaps

Minimap	Room Name	Strategy
	Derelict Caverns (Layout 1/2)
	Derelict Caverns (Layout 2/2)
	Battlegrounds
	Decrepit Cellar
	Gauntlet
	Reliquary (Miniboss Room)
	Experimentation Chamber (Boss Room)

Floor 3

Forbidden Sanctum Floor 3 annotated minimaps

Minimap	Room Name	Strategy
	Unholy Lair (Layout 1/2)
	Unholy Lair (Layout 2/2)
	Infernum
	Halls of Worship
	Crucible
	Sanctum Bellum (Miniboss Room)
	Hall of Mirrors (Boss Room)

Floor 4

Forbidden Sanctum Floor 4 annotated minimaps

Minimap	Room Name	Strategy
	Lost Catacombs (Layout 1/2)
	Lost Catacombs (Layout 2/2)
	Desecrated Crypt
	Undercroft
	Entombment (Layout 1/2)
	Entombment (Layout 2/2)
	Mausoleum (Miniboss Room)
	Sanctum Sanctorum (Boss Room)