Ye Gods!

Pantheons of Yore

I, Grendelf the Wanderer, have travelled these lands of Yore for many decades, and have encountered on my way a great many peoples, all beholden to their own gods and spirits. I have endeavoured to compile a list of these entities, but know that it is far from exhaustive, and some of the names herein are merely alternative names for the same divine being. For the names are not the gods, but merely names. They are expressions of the limited understanding of mortals for things that are essentially ineffable and unknowable.
That being said, I have found it convenient to divide these beings into four broad categories. The first are the various aspects of The Great Mother, who is largely worshipped by more primitive cultures of the north and west, from Rothenia to the Shadow Fells. Then there are the Elder Gods, who were more numerous in the Khorian Era, and withdrew from the affairs of mortals before the modern era, approximately 2,000 years after Arcane Magic was tamed by the Wizards of Old Nuria and the Demon Lords were banished to the Abyss. These Elder Gods are largely forgotten now, but pockets of worship still exist in farflung places and secret sects, especially in the deserts of Nuria Natal.
Next I have catalogued the Ascendant Gods, whose arising from the souls of mortal heroes and antiheroes marked the beginning of the Nurian Age. Whilst dedicated temples and churches to these gods exist, many with their own priesthoods, it is more usual for the people of Yore to worship and invoke different gods at different times, depending on their need. It is likely that some, such as Silvanus and Pan, and merely masks of the same entity, worshipped by Elves and Humans respectively. I have not distinguished between the gods of Humans, Elves and Dwarfs, for I have found similar deities in all cultures, although Gruumsh of the Orcs seems to stand apart without equivalent. In some parts, even in the lands of Men, I have found certain gods to be more prevalent, or seen as superior, where in other locales they remain unheard of or relegated to esoteric cults. Geb, for example, is widely worshipped in the agricultural south, but posit his name to villagers in the wilder northern regions of Yore, and you will be met with blank incomprehension.
Not without hesitation, but for the sake of completeness, I have compiled a list of the Demon Lords, who were spawned in the Abyss, and who came to Yore to corrupt the hearts of mortals and feed upon their baser instincts. They were flung back to the Outer Planes by the self-sacrifice of the Elder Gods and Devils, and nowadays are venerated only by monstrous tribes, or by occult groups who meet in the lonely wildernesses, or in the dark of secret cellars and sewers. There are rumours that amongst these vile demonic Lords were powers far older and more alien, who arrived not from the Abyss but from forgotten realms beyond the stars, but those few names I have encountered I dare not record here, for fear of drawing their strange and maddening eyes back upon these already ravaged and disputed lands. The baleful schemes of the Demon Lords are already quite enough for Mortals to be dealing with.
Finally, I record the Immortals; those lesser deities, devils, demons and spirits who have had influence upon the mortal realm since history began. Venerated by some, and spurned by others, it is unclear exactly how these beings came into existence. Surely, they are of this material plane, and do not belong to the Outer Sphere as do the gods true, and they take distinct forms - of witches, giants and genies - and can be encountered directly by mortals, yet they seem to be somehow beyond death themselves.
For certain, my list is incomplete, for I have still to journey to every corner of the world, and there are exotic continents, such as Tian Xia, that lie beyond the Gasping Ocean and south of Nuria, and even out beyond the wasted west and further north than the desolate tundra of Trollheim, of which I know next to nought, all with their own pantheons and beliefs. It may also be that, with the inevitable confusions of different languages and cultures, I might have misplaced or miscategorised some of these beings, or merged or separated them unwittingly, and for sure there are many that I have simply missed or which have remained deliberately nebulous.
Still, I humbly offer to you this imperfect and incomplete catalogue, dear reader, and caution you to fear these names and keep them sacred, for they belong to beings whose scope and power is far beyond the blinkered minds of mortals.

The Great Mother

Father Sky
Mother Earth
Elemental Spirits of Nature

Elder Gods

Arden, The Sundered God, Elder God of Light
Pelor, The Lost God, Elder God of Hope & Harvest
Baal, Elder God of Wyrms and Serpents
Bahamut, Elder God of Dragons and Wisdom
Sarastra, Elder Goddess of Shadow
Thoth, Elder God of Knowledge
Mael, Elder God of the Waves

Ascendant Gods

Hecate, Goddess of Night & Magic
Silvanus, God of the Elves and Fey, Bringer of Rains
Selune, Lady of the Moon
Yarila & Porevidh, the Twins of Fate
Khors, the Sun God, Father of Nations
Perun, Thunder God of War
Rava, Spinner of Fate, the Goddess of Clockwork
Volund, Master of Fire & Anvil
Mammon, Lord of Greed
Geb, God of Earth & Seed
Nephthys, Goddess of Secrets
Chernobog, God of Blood & Sacrifice
Pan, Lord of the Hunt, God of the Wild
Tyr, the Lawgiver
Loki, the Trickster, God of Assassins, Thieves and Mummers
Desna, Goddess of Dreams, Luck, Stars & Travelers
Lamashtu, Mother of Madness & Nightmares
Rovagug, God of Destruction
Poliel, the Plague Mother
Sarenrae, Goddess of Healing, Renewal & Redemption
Zon-Kuthon, God of Darkness & Loss, the Ghost of Death
Gruumsh, the Orc-Father

Demon Lords

Tiamat, Queen of Dragons
Llolth, Queen of Spiders
Baphomet, Minotaur Lord
Demogorgon, Prince of Demons, the Sibilant Beast
Fraz-Urb’luu, Lord of Illusion and Deception
Graz’zt, the Dark Prince
Faceless Lord Juiblex, the Oozing Hunger
Orcus, Prince of Undeath, the Blood Lord
Yeenoghu, the Beast of Butchery
Zuggtmoy, Lady of Rot

Immortals

Ahriman, Lord of Djinni
Asmodeus, Lord of Hell
Cassius, Herald of Tsathoggua
Koschei the Deathless, the Scale-tipper, Harbinger of Undeath
Baba Yaga, Grandmother, the Witch-Mother
Idu Maagog, Titan of Fire