I would definitely be interested in playing a more fleshed out version of this!
I think it would be helpful if it was a little more clear what exactly you were interacting with - maybe put labels over things instead of just a big "INTERACT" icon?
Also, I'm not sure if I just missed this or not, but there doesn't seem to be a way to review what you've picked up, so I spent about 10 minutes wandering around before I realized that I had not actually picked up the briefcase yet.
Overall, this seems like an interesting game that could just use a few QOL updates :)