Small house.png incorporates assets from LPC base assets, licenced using GPL v3 + CC-BY-SA 3.0
Small corn field.png incorporates assets from Daniel Eddeland (daneeklu), licenced using GPL v3 + CC-BY-SA 3.0
Small town square.png, Town center.png incorporates assets from Hyptosis, licenced using CC-0
Windmill by Casper Nilsson, licenced using GPL v3 + CC-BY-SA 3.0