My Transdimensional Evil Empire

Follow our antagonist Alta while he tries to rule over a world using goblins, orcs, and various other monsters. Did I mention he's a god and that he figured taking over the world would be so easy that he decided to make a hero character to stop him? There's also a bunch of other plot twists, rpg elements, and otherworldly travel to make all the worlds he travels to under the command of his evil empire.