Scenario Editor for KiiGame Adventure Game Engine (https://github.com/aatuh/kiigame)
Programmed with Python & PySide (Python for Qt): http://qt-project.org/wiki/Category:LanguageBindings::PySide
You can build the project to an executable with cx_Freeze: http://cx-freeze.sourceforge.net/ Currently the setup.py is configured for Windows, you can build it with: "python setup.py build"