They live 10,000 years in the future in a post-apocalyptic world. After many years of Twilight being a princess many foes have come and gone but one villain made robots from monsters and mixed them with forbidden magic. He tried to rule Equestira, soon he was able to make the monsters multiply (with magic) even after he was defeated. Twilight made a spell to destroy them all at once but it failed and disrupted the natural order of the universe or at least their whole world. So the world is kinda like a game, monster and anypony (even if not a robot) can level up. Twilight knew her friends needed to stay alive for a long time to help ponies everywhere so she turned them all in to part robot and they could all use magic in different ways. But for some reason it turned her into a robot too, Celestia is no where to be found and Luna is the master of the world right now. Right now they are in Ponyville but it's also Canterlot as well, it is the biggest safe zone in all of equestia and they need to protact it with there lives.