Abstract: Creating more believable Non-Player Characters (NPCs) is a significant challenge for video game researchers and industry designers alike. While researchers explore a myriad of solutions, one somewhat forgotten solution area is NPC reputation systems. In this paper, we describe a redefined reputation system for NPC characters that allows for more realistic and dynamic social relationships. Our reputation system focuses on an agent's ability to remember and share observed behavior of other actors in the world. With this knowledge, NPCs can predict behavior of other actors, react according to their own subjective opinion, and exhibit more believable behavior to further immerse the player in the game world.