Gogo is a Python framework for writing multiuser arcade games.
Developed by Shahar Yifrah (shahary on sf.net,)
Based on Stackless Python tutorial by Grant Olson.
Main features:
Stackless Python gives multi-threading advantages without its overhead/complexity.
Pygame gives ease of graphics / sound / gui development.
You can use UDP multicast or TCP unicast for Clients/Server communication.
Gogo comes as a basic game demo that allows for 2 network players drive a ship, shoot and lay mines.
Screenshots: