Hi, indeed our SFX weren’t very developed (we only have sounds for the construction and menu buttons), but adding sound to bring more life to the game is a great idea.
For the UI, displaying the number of available houses would definitely improve the user experience. The challenge is to find a clean way to show it without overloading the interface, maybe by adding the number of avaible house next to the total number of houses.
Thanks a lot for your bug report, I’ll fix that in the next version.
Your feedback is really helpful, thank you!