Non-Player Characters or NPCs is a generic term for all characters, other than the Dragonborn, that can be encountered while wandering Skyrim. NPCs are controlled by Radiant Al, a complex system in which NPCs move about the world in a non-scripted, lifelike manner and perform daily tasks including, shopping or hunting for food, going to sleep, smithing, or even going on a mission of assassination. An NPC can come in many shapes and sizes and be any playable race.