This is going to be a game theory simulator.
In order to execute the gtsimulator you must download two modules that are not built-in python modules: pygame ( http://pygame.org/ ) and pyyaml ( http://pyyaml.org/ )
If you are using debian-like system, you can download and install it in one line: "sudo apt-get install python-pygame python-yaml"
Along the process I'll make it easier for any system, =P