Digital representations of humans within interactive entertainment software populate simulated environments. These entities, often referred to as non-player characters (NPCs), execute pre-programmed behaviors or react dynamically to player actions. Consider a role-playing game where these entities inhabit towns, offering quests, providing information, or engaging in simulated commerce, thereby enriching the game world.
Their inclusion provides a more immersive and believable experience for players, driving engagement and extending replayability. Early implementations featured rudimentary behaviors, but advancements in artificial intelligence have enabled more complex and nuanced interactions. This evolution has significantly broadened the scope of narrative possibilities and gameplay mechanics, making experiences more compelling.