God is omnipotent, which means they don’t make mistakes.
Actually, no - the dictionary definition of omnipotent is literally being able to do anything. God being faultless is a different thing entirely and depending on how you interpret scripture, that is a false statement. He regrets making humans, so you could argue he sees humans as his own mistake - which is an entirely different kind of fucked-up for another day’s topic.
So whomever is running the simulation would be omnipotent, because they are literally making whatever happens in our universe happen by running a simulation of a universe.
EDIT: meant “everything” instead of “anything” but fuck it