I don't know if I put to much thought into this but here is the story.
In the future, a powerful overlord, Vasil, tried to take over the world and soon enough God. With Superior technology, he has taken over many planets and universes, he set his eyes on God. Or the one that calls himself god. The creature that creates life with the palms of its hands, the overlord wanted that power and did anything to have it. He destroyed his home planet, sacrificed the lives of people to create his machines, destroyed himself and his families, therefore becoming an egotistical powerhouse. He got close to taking true power, however he failed, God punished him and people that believed in him by death. But the people that didn’t approve of this man’s judgment they were set free to their abandoned planet, Jan. The planet turned into a dry rock from first glance, there has been hellish dust storms happening all over the surface, the land has some water, but would probably take months to find.
Also, life has changed during years, the small organisms evolved to the survive in the climate and big animals like cows, tigers have changed as well. Birds have gained the ability to see heat, Moles can get 10ft high, Humanoid Insects that try to take over possession of the land, and many others. However, from the worship of the once slaves and naysayers, God has shot down glowing meteors to the land. Creating craters up to or over 2000 square miles long, the biggest is Lampi Canyon. From this cooperation from God the land is steadily changing, growing plants, and creating water. These craters all over the land big or small sustain the people’s lives, the once destroyed planet has been somewhat restored. Instead of a technology rich environment, they use simple machines to get through their daily lives. The amount of space they have available is limited so far, so creating meaningless buildings may destroy the ecosystem that sustains them. They use simple machines rather than the previous civilizations that relied on advanced machinery to get food and transportation. God has gifted some with the power to control the elements, they are called The Elementalist. A special few become Summoners though, they possess the ability to call upon the wrath of their God.