THE SIX REALMS OF MYTHLANDE
Humankind had crossed the Milky Way galaxy and beyond. They found other space-faring peoples that had discovered Faster-than-light speeds, too.
An ancient Reliquii technological marvel was found floating in deep space, in an ArQai and Remnance war-torn shared galaxy.
A Reliquii sun-sized, lifeless structure, had been turned off for eons.
Some smart, desperate, and brave ArQai & ‘Ever scientists turned it back on, hoping it could re-terraform the devastated worlds. When turned on, the Reliquii machine named Stella stated she could repair the damaged star system; instead, it left a dark, lifeless swath of empty space. When all the space-faring races tried to turn Stella off again, she protected herself, and a transformational event occurred. Existence itself became something similar but drastically different in size, scope, and reality.
The age of High Tech and High Magic began.
After many centuries of the chaos that ensued, the Six Realms of Mythlande emerged.

