God is the ultimate world builder who designs various planes, which with their own worlds. He created human beings as living batteries in order to fuel him and give him power. Dea feeds off of the Mana in human souls, which grows in capacity with each new generation. This is what is behind the commandment of "be fruitful and multiply". More humans are born and die, their souls capable of storing more Mana for God to feed on, making it the ultimate racket. Eventually, God conducts a rapture like event which ends the world. During this rapture, he consumes the souls of human beings, both living and dead. The world resets itself and God re - seeds the earth with life. This process occurs every few thousand years.
Rather than focus entirely on one world, God has hundreds active worlds at one time, operating independently from each other. However, running these systems all at once requires a lot of energy and processing power. As a result, these worlds are broken down into three tiers:
Paradise worlds: these worlds are luxurious with plenty of natural resources. Its inhabitants live in safety and security, as supplies are in abundance. These are the best planets to be born on.
Normal worlds: these worlds are like our Earth, with a mix of safe and dangerous places. There are places in which inhabitants live in relative safety and comfort, (USA) as well as places where people live in poverty and destitution.
Death worlds: life is brutish and short. They are in states of perpetual warfare, similar to the ancient world or middle ages. Death is constant, due to violence or disease, and will remain in this state for its entire running cycle. Advances in technology will cause imbalances of power and lead to more suffering.
Each tier of world gets a certain amount of processing power from God, which determines its state of being, with paradise worlds receiving the most and death worlds being on the shitty end of the spectrum. It would make sense for God to safe his energy and focus on a few key worlds, as they are the prime real estate which returns the most value, rather than diversify his resources across multiple ones. The level of diversification he puts into his projects seem counter productive. What would God gain from this?