travelsolar Steam CD Key - discussion

According to the current astronomical observation and exploration, the solar system is composed of the sun, 9 planets and their satellites. For example: Sun, Mercury, Venus, Earth, Moon, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto etc. This game is based on the background of various celestial bodies in the real solar system. It simulates that astronauts fly a spaceship from earth orbit to the moon first. After reach to the Moon select the planets or satellites they want to explore, and t
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