Alright, here's my feedback on the game:
- Nice art and good background music. Though, the UI does go well with the art of the world.
- The difficulty doesn't change over time. It doesn't matter how big your green area is, the game still has the same difficulty. This is because there is no passive income from your green area. This feels unfair.
- The area of buildings is shown well. Though, it would be nice if you highlight the part of the world were they can be placed. I also think that you should better show if a building (powered) is within the range of a turbine.
- If you place a building first and then place a wind turbine, the building doesn't receive power even if it is within range.
- Please add the ability to see the range of a placed turbine by mousing over it.
- Panning with wasd and panning by holding down the middle mouse button would be nice.
- Maybe add the ability to remove buildings as well. Though, not having this does make the game more difficult. So perhaps allow destruction on low & medium difficulty and disable the ability at high difficulty.