In the Dungeons & Dragons fantasy role-playing game, the Dark Seldarine are the fallen, mostly evil deities of the subterranean drow They are not truly a pantheon in the same way the Seldarine are, though, as they do not co-operate. The Dark Seldarine are led by Lolth, whose power sometimes forces the others into obeying her. Their planes are various layers of the Abyss in 2nd Edition D&D and is the Demonweb Pits in the Third Edition cosmology.
Ghaunadaur (gone-ah-dowr), also known as That Which Lurks and The Elder Eye was first detailed in Ed Greenwood's The Drow of the Underdark (1991). Ghaunadaur is considered to be highly unpredictable by any standards. It is not always necessary to worship it; sometimes, simply paying lip service is enough to earn a boon from the god. However, this is not often done, as it's equally likely that it will consume or maim the penitent without warning. It is generally discouraged for priests of Ghaunadaur to be friendly with other priests; however, the Underdark is full of strange things. More information on Ghaunadaur can be found in The Drow of the Underdark, the TSR AD&D 2nd edition rulebook.
Kiaransalee (spelled Kiaransali in Greyhawk since the Drow Civil War) is the drow deity of slavery, undead, and vengeance. She was first detailed in the book Monster Mythology (1992), including details about her priesthood. Kiaransalee manifests as a sinuous female drow, wearing only silver jewelry and silk veils. She wields Coldheart, a dagger that perpetually drips acid, and when it pleases her she dons the Mantle of Nightmares, a cloak of bones that causes magical fear in all who gaze upon its horrors. Kiaransalee dwells in the fortress of Kandelspire on the world of Guldor.