It is a good game but needs some work with the UI and UX
When you hover over an Upgrade there is a text showing what that upgrade does, but the text appear like below the "floor". It would be nice to have it explained in a box right next to the upgrade. Also, that text disappears if the player is too zoomed in
You can add some little icons next to the Upgrades that requires the "gold" so it indicates that it requires that thing in order to be purchased, otherwise it is just a number that means nothing
It would be nice to have some numbers showing how much upgrades like "Haste" are increasing the speed. Like +25%, +50%.
The inside of the boxes that appear when hovering over a building should be filled with the same color as the background and put in front of all other sprites/game objects, this way buildings like the house wont appear obstructing that box
I noticed that if you use the mouse wheel in the House Upgrade you can buy a ton of it, like it is registering the wheel input to buy the upgrade








