I'm going to submit a little early, as I've worked myself into a corner somewhat. Having pre-rendered graphics carries a certain risk with it: there's a lot of effort needed if you need to make a fundamental change, such as changing the layout of a room. The fact that I modelled the environments first, then tried to make a game around them, came back to bite me a bit. However, it still works as a proof of concept for exploring a pre-rendered environment like this, so in that regard, I'm satisfied with it.

You can play it here.