SIO-engine? No way...
I am looking to make a RPG-like game where there is a free camera moving around.
Besides, i'd prefer not to use C++, its too hard to debug as i dont have a working setup of Qt Creator.

As for PyGame... what does it have to offer?
AFAIK, the engine i make will be biased mostly towards graphics and collision-detection between models along with physics.
The amount of code written for plainly game that could be a console will be minimal. It will only be used for tracking progress and items.