Project A.Y.R.M.

After the war that scorched the surface, humanity's last surviving descendants would only ever be found in the underground Neon cyber fantasy city of Nighytfeild, where corporations run everything and people of goodwill run little by little. Connected to Nighytfeild through carved-out tunnels are the home cities of the other races found once Nighytfeild was first built. Luai and the moonriver, Crimson and the Obsidion colosseums, and the Aurora Forest. Under the cities lies the Undaria or the Dark Floor, a space of infinite pitch-black darkness that separates the city from (presumably) the earth's crust layer. Home to many naturally destructive monsters and corrupting viruses but also houses valuable resources and riches lost during the city's founding.