The Southern Coast of the Estuary of the Forked Tongue
Death among the rocky badlands, budding mountains, and numerous silt basins of the southern coast of the Estuary of the Forked tongue can come quick, but a life can be made here or at least a living. On the Grey Coast, desert tribes trade with one another and a few outposts that eek out an existence, ruins of ancient times are revealed in the silt and beckon would be treasure hunters, traders always need new caravan guards, slavers always need new stock, and tales of the Fabled City of Plenty call to the curious.
The Halfling's Spoon
A menu from The Halfling's Spoon, an Athasian eatery.
The Code of Hamanu
Hamanau's Code is a strict set of laws that govern every aspect of life under the preview of Hamanu, Sorcerer-King of Urik.
Athasian Warforged
Ancient tablets found in a wrecked silt skimmer herald the coming of Athasian Warforged.
Plant Life of Athas
As the name suggests, this is a compilation of types of plants found on Athas. This resource gives descriptions of various plants: trees, cash crops, and even dangerous, carnivorous plants. Geographical locations where the plants grow are given as well as any other relevant information on the plant.
The Good and the Green
The Good and the Green; An Examination of the Athasian Halfling Culture in the form of a letter from Brandobaris, flailing adventurer of Ogo, to his dear friend, the elven priest and preserver Disnomos.
Draji Religion
Another ancient unofficial article found in the web archives:
According to the Draji religion, a faith propagated by centuries of state sponsorship, King Tectuktitlay is the supreme temporal and spiritual authority of the cosmos, a kind of perfect incarnation of the spiritual forces of Athas. The Draji are taught that their King is the creator of all life and is responsible for investing the world with order and purpose. Unlike their neighbours in Raam, the people of Draj largely believe what the Moon Priests have taught them and they look upon Athas as world with their own King as its necessary centre. In Draj, as in Gulg, it is the state religion which dominates Draji identity and outlook, making it one of the more stable cities of the region, and certainly the most arrogant.
Arcane Apocalypse: The Abominations
Tales of the corrupt races, Trolls, Wemics, Pixies, Goblins, the abominations of the Arcane Apocalypse.
Dray Religion
An ancient unofficial article from the depths of the internet:
The Dray, the draconic race who dwell far beneath the scorched surface of Athas, owe their fearsome form to a transformation wrought ages ago upon the band of humans who then served under Dregoth. However it was not only the bodies of his people that the Dread Lord saw fit to alter to his liking, but also their hearts and minds. This was achieved long before the physical transformation, when he fashioned for them a new religion, one which places himself at the centre of a cosmic drama in which they would play a vital part.
The Elven Tongue
Words and Language of the Athasian Elf.
Kaprak: City of the Druid
Outpost Kaprak was a small, remote storehouse and waypoint for House Malaxi, a once-great merchant house that fell on hard times.
Location references
Thanks go to Kamelion for compiling this comprehensive list of location references in Dark Sun products released by Wizards of the Coast.