I really enjoyed this game.
The visual and sound aesthetics were really simple, but still works really well.
The most interesting thing about the game is of course the systems, which as a fellow programmer I find to be very intriguing. The player actions are definitely quite simple, just walk around and buy stuffs. But the way the NPCs interact with stuffs and each others feel quite organic and believable.
i admit it took me some time for it to click though, because of the lack of tutorials. I suppose for more experienced players it can be figured out, but I think the less experienced players could feel confused at the game mechanics.
Overall this is a very interesting concept I could see being fleshed out further. Great job!