1. A method for controlling a portal between adjacent regions of modeled space in a multiplayer game, comprising: modeling, in a computer memory of a host configured for communication with multiple remote clients, a fixed home region of a modeled environment; modeling additional regions of the modeled environment in the computer memory as connected to the home region via a modeled portal included in the home region, through which passage of modeled avatars between the home region and the additional regions is enabled by the host, wherein the additional regions and the home region each comprise separate regions of modeled space containing distinct arrangements of modeled objects; modeling movement of an avatar between the home region and the additional regions through the modeled portal, in response to input received from one of the multiple remote clients; for an avatar modeled as moving from the home region through the modeled portal, automatically selecting, by the host, a destination from the additional regions for the avatar moving through the portal, based on which of multiple different preferences is associated with the avatar for the portal in a data record.