The Eridian System is a Planetary System that holds 13 planets, however only 9 planets were inhabitable when the Science of Research and Biology and plant life of the Alpha Legion was sent to these planets. The Erdian System's main planet is Eridianus, which is a forest planet with the surface having 70% forest, with 30% water. The planet is a famous tourist attraction due to the great wildlife, and also the ancient ruins of Livagan Trestian, and their ancient technologies of calculating stars and other celestial bodies.