Environmental science (idling/action) game “Plantan” ​ This is a story of a girl who is left behind on a ruined planet. One day, she find a mysterious machine with a terribly drained batterie. She thinks it is a beacon and tries to charge it using natural energies on the planet, but she will know true identity of the machine and a secret of this planet… Climate inside the game is gradually changing with parameters such as time, air pressure, wind speed, and so on. You can learn basic knowledge of weather and natural energies through playing Plantan.