For what it's worth, I played with procedural 3D myself, just a little, with some help from the three.js library, which has convenient functions for putting geometric primitives in a scene. What I didn't have was a suitable game idea, and without a drive, the whole thing fizzled. You can see a live version in the original blog post. Sorry for the lack of comments, but nobody seemed interested at the time, so I didn't ellaborate.