Abstract: A system for generating an output multimedia stream user multimedia streams each comprising partially- or fully-animated images that track the movement, orientation, and facial expression of respective users, a non-user multimedia stream (e.g., television broadcast), graphic elements, and video and audio effects. The system includes a multiplexer that generates a multiplexed stream from a plurality of user multimedia streams, a selector for selecting one or more user multimedia stream from the multiplexed stream, a multimedia director device for generating the output multimedia stream from the selected streams, non-user multimedia stream, and added graphics and video effects. The output multimedia stream may be sent to the user devices for generating an interactive experience, such as an online gaming experience. These systems may be organized in a hierarchical manner, whereby regional systems provide multimedia streams to a central system that generates an output stream from the regional streams.