Energy Keeper

Ralph is a scavenger robot programmed to build windmills. He  cares about the earth much more than many humans, they say. In order to build windmills, he'll have to gather resources while avoiding enemies and traps along the way. Your objective is to build 5 windmills to bring power to a city. Help Ralph show that wind energy is a great energy source! Find more information on this topic here: htt…