Solid vertical slice/prototype. It's an adventure game that could certainly be expanded on if you wanted to. There are certainly some niceties that could be added for a better game feel. Animations for the doors would be one of them. More stuff in the environment would be nice as well. I did see one oddity where the work items while held would rotate as I moved the mouse left and right. Fixing that would be a bonus as it just doesn't look right. Overall, I'd say you got a good start on something that could end up being really good. Good job!