Abstract: A complete multi-user game playing environment is described which provides game playing services to cable television subscribers over existing cable networks. A game player located at the end of a cable network connection has a computer or other game playing device attached to the cable network through a front end adapter card. A game playing server is located at the cable headend and is equipped with back end communications cards for full duplex communications over the cable network with a plurality of game players. A plurality of uplink frequencies are used by the servers to communicate with the game players and a pluralities of downlink frequencies are used to communicate from the game players to the server. The communications are controlled by the server to prevent communication collision on the cable network over the same frequencies by having the server control a dynamically-changing time and frequency division multiple access protocol.