I love the idea of doing a text-based Metroidvania. Super cool, super creative, perfect for a game jam. Plus, I'm all for putting more weird text-based games in front of people.
This was fun, but I don't know that it quite lived up to my expectations. Especially not a fan of the whole "parts unknown" thing because it really make it difficult to know what actually my going to a room will do. (I suppose, thinking about it now, it sort of helps emulate the exploration element that is so important to a Metroidvania? I don't know about it. Maybe if I play a bit more I might come around on it, but off the bat it just felt sort of annoying because I had very little information to base my decisions on). I think in general, it felt like a lot of what I did had minimal effect on the world, which is part of what I generally like about text-based games like this.
Sorry if any of that sounds harsh, not my intention at all. I actually am really hoping you work a bit more on this, or at least see where the concept takes you. I think the idea is beyond amazing, and this stands out as one of the most unique and interesting entries in the jam to me.