The Great Mother is a setting created by Starfoth (Star Art HD)
The Great Mother is an Earthlike planet orbiting the Great Father with a moon known as the Great Daughter. and is a central nexus on a massive hyperlane webway between numerous dimensions. Besides the Great Mother and Great Father, there is also Aphrodite, a planet that once supported life but is now rendered uninhabitable by a tremendous clathrate eruption and Ares, a Mars-like iron soil lichen planet that is undergoing a massive colonial independence rebellion from the nations of the Great Mother.
The Great Mother is notorious for it's heavy use of drone/slave labor and numerous kinks integrated into daily life.

Notable nations include;
The Empire of New Hope, an empire overlorded by a desert horde
Valeria, a nation that contains Union City and is populated primarily by refugees from an offworld nuclear war across the webway
The DRST, a theocratic socialist state that worships the Great Father