WaterWell
Water wells work very similarly to farms. Each water well produces 25 * ((50 * water wells)^2) water. You could purchase water form the market to supplement negative production if necessary.
If your kingdom runs out of water, it will automatically spend 25% of your new income to purchase some. So it's important to have enough water or you miss out on 25% of your revenue.
Water wells also cost 5 * (water wells^2) lumber after level 25.
1,250 * (water wells^2)
- Water wells money cost