Watch the NPC Reaction video tests! >> An NPC is basically a character not controlled by the player, who can be of great importance during the many main or side quests. NPCs vary in importance and placement: they can either be annoying and useless or interesting and useful. Many Role-playing games only give the most important NPCs something useful to say or do. Talking to other characters makes no sense since they only answer with one of the standard sentences: “oh, you’re the princess!