Hi Nathan, thanks for the feedback and for trying out the demo! There's only one level currently, so the stairs don't go anywhere yet. :) I'll change the message to be more clear about that until the stairs are functional.
Thanks! I'm not sure yet at this point, but that would be cool! Although I had originally intended it only as a demo of the engine, I am hoping to be able to turn it into a fully fleshed out game eventually.