Fun. I would add keyboard inputs for each purchase from the shop, as well as one to hide it so I can focus entirely on surviving. Good game, best regards!
In addition to what others have already mentioned, there are two things I would personally like to see.
First: When placing a building, I would prefer the range to be marked on the grid rather than in the top of the building, so I won't be misled by the perspective. It would also be helpful to add feedback by highlighting the constructions that will be affected by the new building.
Second: I would like to see the costs/benefits of the buildings displayed somewhere, or at least the total amount of each resource being generated or lost per second.
Nevertheless, I think it’s a good game concept that, with a few small adjustments and extras for variety, can become something scalable and interesting.
