An entertaining super-hero game for the PC and Mac.
You can extend the game by developing your own scenarios. What is most interesting about this is that the language you use to script the scenarios is the PythonLanguage.
In fact, the game comes with its own PythonLanguage installation.
I just tried to run the demo, has anyone had any luck getting it to run under Windows 2000 with the most recent service pack? Feel free to RefactorByCondensingQuestionAnswerPair.