Rainoga world illustration - Dark Fantasy theme
Dark Fantasy

I really loved Adventure but I wanted to go through space so once once I'm done adding fantasy stuff I will make a giant update that would just be map that space stuff new races for outer space spells I do have to do that somewhere in like a month or two but I might have to take a small Hiatus for a little bit

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21 days ago
Last Updated
8 days ago
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Glimmersea
Glimmersea
Area
Details
Size0
TypeUnderdark Water Body
Description

The Glimmersea sprawls beneath Faerûn’s crust, a vast subterranean ocean deep within the Underdark. Its still, black waters stretch for untold miles, interrupted only by jagged stalagmite isles, fungal cliffs, and the half-submerged ruins of long-forgotten civilizations. Unlike surface seas, the Glimmersea glows—its waves illuminated by bioluminescent algae, drifting spores, and strange lifeforms that pulse with ghostly light. Traders, drow, illithids, and kuo-toa sail its depths in eerily silent vessels, navigating by shimmer rather than starlight. The air here is cold and moist, filled with the mineral tang of stone and the soft, unsettling chorus of unseen life. Whispers drift on the air—not always illusion—echoing ancient pacts, half-buried horrors, and minds reaching across the dark. Below the surface, things older than the gods stir. The Glimmersea is not merely a passage—it is a realm, alive with alien beauty and deathless dread.

Appearance

A black, mirror-like sea stretches into shadow, broken only by glowing fungal outcroppings and ghost-lit waves. Strange fish shimmer just below the surface, casting pale trails in the dark. Towering stalactites loom above, dripping into the water with slow, echoing splashes. Bioluminescent mists swirl low over the surface, giving the entire expanse an eerie, dreamlike glow pierced by the occasional silhouette of a passing boat or distant, skittering shape.

This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC . The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License.
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