A virtual environment server. The server manages time-shifted presentation data between multiple participants in a shared virtual environment system. The server includes a routing module configurable for coupling to multiple participants, a real-time data management module coupled to the routing module, a time-shifted data management module coupled to the routing module, and a data store module coupled to the real-time data management module and to the time-shifted data management module. Participant output presentation data is received from the participants, stored as real-time presentation data, and transferred to appropriate participants. In response to requests from a requesting participant to obtain time-shifted presentation data from a time-shifted participant and any influence participants, time-shifted presentation data is retrieved from the data store module and transferred to the requesting participant. Influence participants are participants whose input presentation data are influenced by time-shifted participant and whose output presentation data influence presentation environment of requesting participant.