There is a peaceful village on the Earth, the energy of the village comes from the windmills. Unfortunately the gear to run the windmills is spoiled, the village is now running out of wind.
Help the villagers to replace the gear for the windmills and bring the mills back into working order. There are different sizes of gear, you need to put them properly to make them work again.
Use your MOUSE to drag the gear to the right place.