Lorewalkers

By definition all of my OCs are originally from Gram. 

However, I consider Gram to be part of a wider connection of worlds with my RP group, and some characters from Gram travel to their worlds through magic. While Gram is my own homeworld with its own lore and mythos, it coexists with their own worlds. We consider each of our homeworlds different dimensions, with each of them being reigned by the owner's own set of rules. We all compromise on a few aspects of our magic systems when we RP together, because we love fun. 

Gaia
There is a shared "neutral" world we usually Roleplay at, meaning that some of these reside or are from this neutral world (called Gaia). I have one scenery that is "mine" in Gaia, called Vopp, from which I try to make all my Gaia OCs from.

Space Jam
Some of my space opera OCs exist in a different timeline than Gram, but I am inclined to just wing it as if they're time travellers because I love fun.