This is a lovely game and actually a neat concept, however I want to give some suggestions in term of game mechanics and things you could add if you wanted to make this into a full game:
- Add full mouse-less functionality, in this case I think adding buttons to rotate the camera outside of the mouse wheel and zoom would be nice
- move tool, have the ability to place a previously placed object
- multi selection tool, add the ability to select more than a singular object so you can move them or delete them all at once
- inventory for objects bought, so you don't need to delete them and re buy them
- better economy, as the game is right now you can place multiple objects all at once and hit fast forward
- requirements for object placement, you can simply not add walls or floor at all and still generate vast amount of money
- if you delete a wall that is holding a lamp the lamp should also be deleted
- client variety, some clients might enjoy being exhibitionist, others like to be in private, so the player now has an incentive to place better walls
- change the employees mechanic, instead of waiting for them to send you an e-mail be able to start a hiring campaing or select them, maybe some with specific areas of work, some of them can interact with the clients, sometimes they can quit, ask for raises individualy instead of a general wage
- more common complaint system by people outside, with things like "too noisy" and "they're doing it outside!" which could lead to be able to have a fail state and multiple moneraty loss, I went 10 days with everyone outside doing it like crazy until I had my first noise complaint
- maybe some utility stuff like bathrooms and food, cuz why not
- small random detail, the clock displays 0:00 PM to 0:59 PM instead of 12 PM
- For the tube objects for indivual clients make it so that other random clients go and see them
Thank if you read all of this and sorry if it was too much, once again, loved the game, I do see a lot of potential in it