So, after another 9 hours: - Level changing works - Can now win/lose (die/progress). - A couple of 'real' levels (though pretty minimal, sadly). - Lighting behaving better - though still not correct. - A gui of sorts.

Really wanted to get some more (substantial) levels done, and wanted to get sound in there as well, but I'm pretty much out of time now.

Tomorrow will be busy at work :-(, and I have evening commitments, so I probably won't be able to do much more than package and upload.

Anyway, it is game-like, and I'm pretty pleased with what I've managed. 2:40 AM now, and after 17 hours today, I'm stopping.