Basic Cultures:
Elim, the riddle of Steel (Non-unified Clans, Steel as a God, Barbarian)
Barl, the bloody Empire, (Human Sacrifice (But not 'the generic evil empire; a true empire that just happens to use blood magic or sacrifices), Highest civilization, Rome)
Cuv, the Dragon riders, (Mongolian, Kobold?Lizardmen?Human?, use huge Lizards as Mounts, Elephant style, Nomads)
Bequen, the Darkness below (Orcs who worship a long dead underground dwelling race (Dwarves maybe?), Hidden Sealed monsters in caverns, strange priests and fearsome warriors *Written in margin: Morlock-style priests guard the sealed vaults of the ancient civilization said to contain terrible evil, don't eat people but are hurt by sun light and slowly become more 'cave adapted' as they go deeper and have been there longer, deepest priests are strange, creepy, but enlightened cave-things */Margin*)
Pan, the forests of revelry (Magic, Chaos, Madness, Satyrs+Centaurs+Minotaurs, Maenads riding unicorns, ruled by the Black Bull a monster of unbridled fury and the inhuman, dangerous and wild, the White Bull the beast of fertility and wilderness (Who are enemies and brothers, one representing nature at its best, the other at its most terrible) and the Lord of the Wilds, the King of the Forest and Prince of Revelry.)
Mechmet, Fire and Water, (Amalgamated men, mongrel folk and beastmen, egyptian maybe? Worship fire and water *In Margin* Ex-slaves to a cruel mageocracy, freed by fire and water, fire as their weapon water as their saviour, problems with useless mutations and genetic screw ups. *End Margin work *)
Ossus, the Flesh Eaters (Live in swampy area, lead by a warrior cast of Amazons who ride giant birds and practice traditional ritualized cannibalism of foes, honour themed society.)
Leltern, the mountain people (Winged/gliding Goblin creatures, craft magic ice into tools/weapons, famous Archers, live in mountain/valley villages high up. *In Margin * Most can only glide, preist-mages can fly; technically a mageocracy ruled by the priest-mages who spend all their time up in their ice-crystal towers being hermits and philosophizing, so it works more as a republic 99% of the time.)
Rhab, the immortal cursed (Elves/half Elves who slew their murderous god, doomed to lose their minds and forms as they age and become something terrible and 'other', maybe deep ones or something, very strange society that spends much time dealing with the curse.)
Yogini, the lost searching, (Not sure about this one, race with forgotten empire/history suffer from a driving urge to know who they are which is passed down to their children, a sort of genetic obsession with the lost and with secrets, mixed with a natural curiosity, wanderers, shattered society, clever hands and minds)
Night Eyes, the terrible orphans, (Genetic Trait amongst humans that produces huge, black-eye'd (As in the entire eyes are black, not just the pupil) men and women with fearsome tempers, incredible strength and durability and a slight inclination towards natural magic talent in earth magic but no other magic, caused by humans interbreeding with the Giants before they died out, these genes occasionally come to the Forefront and the result is a Black Eye (Usually kills the human mother as Night Eyes are usually born huge, which is part of the reason for their reputation as takers of lives and their other name, the Lifeblood Slicken (Shortened to the Slicken)), heavily distrusted due to their fearsome tempers and strength; not a culture in and of themselves as such.)