Grattle is a real-time strategy game which playfully teaches the importance of renewable energies. Without a decrease in energy production, conventional power plants must be dismantled and replaced by alternative power plants.
Worldwide, the precious eco-balance threatens to fail. In order to prevent this, the eager Green Pilot has been sent out to look for the last hope of mankind: You! As an energy expert, the Green Pilot transports you to different islands, where alternative power plants have to replace conventional power plants using well-balanced resource management. As if this were not tricky enough, the islands are threatened by various disasters due to the imbalanced ecology. Not it is up to you to restore the world's eco-balance.