Fudge is an open source game/graphics engine written in Python and is the latest project I've been working on. The emphasis is definitely on graphics, as it already sports deferred shading with blurring, screen-space ambient occlusion, depth of field, bloom and relief mapping before supporting basic stuff like manipulating rotation .

The source code is available from this bitbucket repository. You'll need Python 2.6 and the following dependencies: PIL, Numpy, PyOpenGL, PyODE. Some of the shader code has been adapted from various online sources, I'll be making sure they are attributed in the final release.

This is just a brief preview, more development + screenshots will come soon!