A strange little side quest
Clean The Planet may feel immediate, but the ideas around space have been evolving for a very long time. The Moon orbits Earth at an average distance of about 385,000 kilometres, and surface gravity there is roughly one-sixth as strong as Earth's. The broader history adds one more wrinkle. SimCity grew out of Will Wright's enjoyment of the map editor he had built for an earlier game; the act of shaping a city became the game itself. That is the kind of background detail that makes another attempt at Clean The Planet feel a bit more connected to the history of play.