A sub-world was divided into three tiers: the low world, mid world, and high world.
Most of the gods didn't care about the low and mid worlds, but the high world was a different story, as some of the resources there could rival those in the Imperium. If his memories were right, Goddess Athena, the one he served in the game, had one hundred and seventy-nine high worlds under her rule. While Souta only had one high world under his rule, that world was given to him by the twelve executives of the Mechanic Country after he was promoted to the chief commander rank.
Although gods and deities took control of thousands of high worlds, there were still high worlds out there that didn't belong to a god. Some of the folks there rose to god-level and took control of their own world, a god that doesn't live in the Imperium, and people from the Imperium called them Outer Gods.
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