AI invasion of another world

A magical fairytale world is home to many peoples, races, and wondrous creatures. This world is home to magic and gods, dragons, and fairies. For millennia, this world lived by its own laws until one day, a merciless and cruel intelligent machine fell from the sky from beyond the void. Demons are no longer the main threat to the world, now the main threat to life is an army of droids controlled by artificial intelligence.