Shaded Citadel

Shaded Citadel is one of twelve regions in Rain World. Shaded Citadel is a very dark region and you'll need some sort of light source to guide your way through the region.

There is a Scavenger Merchant in Shaded Citadel that you can buy a Glowstones from with a Pearl. In case of emergencies, you can use the Flashbangs on stems as defensive weapons, illuminating the screen and harming photosensitive creatures.

Creatures
The creatures that can be found in Shaded Citadel on easy and medium difficulties include: The creatures that can be found on hard difficulty include:
 * Bats
 * Centipedes (Overgrown and Adult)
 * Lantern Mice
 * Lizards
 * Black
 * Magenta
 * Monster Water Kelp
 * Scavengers
 * Scissorbirds
 * Spiders (Large groups will kill)
 * Spitter Spiders

Food

 * Bats
 * Blue fruits
 * Centipedes (Infant)
 * Orange Luminescent Mold

Echoes

 * Four Needles Under Plentiful Leaves

Sub-regions
The only sub-region of the Shaded Citadel is Memory Crypts. Memory Crypts is extremely dark, with thunder and Miros Birds running through.

List of gates to other regions

 * Gate to Industrial Complex (Requires 2 Karma)
 * Gate to Shoreline (Requires 3 Karma)
 * Gate to The Leg (Requires 1 Karma)

Pearl (Spoilers ahead)
If you bring the Maroon Pearl to Big sister Moon, she will read a demand by a "Convocate" to stop production on an "apostate superstructure abomination" with "full force of law and religious doctrine", because it placed the Citadel in its shade. Moon says this was obviously ignored. Obviously.