Gave two honest tries to the game, and another half-hearted one. Were not able to figure out what I'm supposed to be doing or how to progress. Either I'm missing something crucial or current game loop is just too barebones to be engaging. Narratively, it felt that I should be either managing tenants or finding ways to sustain myself on them. Gameplay-wise, I don't think there were enough options to do either with the first tenant. Don't know if there were more tenants to appear (if there were, then the wait time is quite high, it seems). Also, the saving issue leading to TypeError mentioned before, kinda didn't give me an opportunity to prolong my playthrough to maybe see more.
What I liked about the game is the amount of polish and care put into the map and its visual details and a lot of other small things like saving mice's little animations, light affecting my vampire near windows, and some extra options and info on different map objects. It was apparent where a lot of effort was put, and currently that being the presentation of the game is its strongest suit.
I think the game has some nice potential and hope you will be able to flesh it out more! Good luck!