A decade or two ago my brothers and I optimistically set out to make a webcomic. We didn’t have an artist, so the creation was primarily that of worldbuilding. You can read our notes here: http://hozz.peripheralarbor.com/
In the years since, I’ve been meditating with growing amazement on the setting that we developed, as it seems to have significant psychological depth. Perhaps that’s all projected, but I’ve attempted to embed that meaning, especially from the origin story, in this image. http://hozz.peripheralarbor.com/TwinWorld_origin
You can download the Blender file here.