Lands of Tartarus

Central Continent - Gaia
Cut off from the rest of the world, Gaia is the primary focus of the setting.

Eastern Continent - Parelthón

 * Norah - The western coast of Parelthón is dominated by Norah, "The Land of Monsters". Norah is less a kingdom and more an obstacle that must be passed. It serves as a constant threat to the other kingdoms, as well as the entire world. The Niichaad trace their lineage to the savage tribes of Norah.
 * Palmyra - A stratocratic empire absorbing most of Parelthón under the rule of the Hero King Giruga.
 * Țara-Lupilor - On the border between Palmyra and Norah, rebels trying to push back the Empire while defending against the monsters.

Northern Continent - Parón

 * The Republic of Bael Turath - A frozen wasteland separated from the rest of the world by the Sea of Black Ice. On the verge of a civil war, the current Premier Isayev Petrovich has issued an order of "Enforced Containment" on the remaining citizens. Squalor, starvation, and poverty plague the nation, with escape attempts over the border into the Sea of Black Ice happening daily (usually resulting in mass executions by military personnel).

Southern Continent - Méllon

 * Hura - Through the vast plains, deserts, and jungles of the Southern Continent lies the nation of Hura. The people of Hura live in a theocracy under the worship of the goddess Taiia. The people of Hura have been on a crusade against the Kingdom of Abaddon ever since the Storm.
 * Kingdom of Abaddon - From the remnants of the Advent Guilos rose the Kingdom of Abbadon, a nation of people dedicated to the inspection, documentation, and protection of all things pertaining to the ancient civilization. Abaddon is a magocracy, ruled over by an archmage and a council of high-magi.

Island Nations

 * Ki-no-ōkoku - The "Kingdom of Trees" is a tree-covered island in between Gaia and Parelthón, located in the Umbral Ocean. It is home to the feudal society of elves who call themselves the "Hitobito" (or "The People" in Common). Due to their extreme isolationism, the shogun designates one elf "Ryokō-sha" (or "Far Traveler" in Common), and they are expected to learn about the rest of the world and return home once they believe they have lived a full life among the outsiders.