After some more tweaking this morning, it is clear that this project needs a lot more than 7 days, at least for me. I've had a busy week that just didn't allow for enough coding opportunity.
What I've ended up with is a game that still feels far too much like Brogue, but has removed most of the fun from that game.
I'm probably going to keep working on this project from time to time. I want to see if I can get the core gameplay mechanic to revolve around hunting creatures for food, while avoiding being killed by the tougher creatures of the deeps.