Locally-Adaptive Virtual Environments in Persistent-state Multi-player Games

We present a generic model for adaptation in large scale, persistent state computer games that allows the virtual world to change automatically, with reasonable eciency. We demonstrate the utility of our technique through two dierent forms of dynamic common game content: 1) a basic weather cycle that adapts wind, rain and water accumulation to variations and changes in a large-scale terrain, and 2) a simple reputation sys-tem that allows agents in the virtual world to respond appropriately to a player's actual behaviour in a game.