PyScenario is exclusively designed for the mod-mod RFC Epic/Marathon, which is an alternate version of the Rhye's and Fall of Civilization mod adding two additional game speed options, as well as speed enhancements and even bug fixes. Other than that the game-play is exactly the same. PyScenario is no longer compatible with the official version of RFC. Note: All scenarios should be designed for and tested with Normal speed for game speed compatibility reasons. About PyScenario PyScenario is a scenario event scripting tool and not designed for Python modding as such. (That would require actual programming.) Any scenario should be developed along side a custom World Builder Save file - unless the starting situation of the scenario is the default. In that case PyScenario works just as well with the pre-defined scenarios in RFC (the 3000 BC start and the AD 600 start, respectively). Main selling point: The scenario maker is not required to know any programming at all! The user does however need to learn the specific syntax involved - but is not required to know anything about indentation or statements in Python, about logical expressions or about programming operations. In short: You don't have to be a computer scientist to use PyScenario. Current status (2011-09-03): Beta version 2.2 Download here.