The story of Dirt Worlds:

In the beginning, these planets were on a far point of the Solar System, so they were covered by ice and snow. On these planets, there isn’t much life, but the expedition found the ruins of an ancient civilisation. In the ruins, they found a strange thing that caused the planet to explode. This explosion had very high influence on the image of the Solar System, most of the planets went closer to the sun, those have melted and now they are covered by dirt and mud, but some planets went even far out, they are still covered by ice and snow.

Dirt Worlds (version 2.5):

Populous Reincarnated Mappack:
Latest version is: 2.0

Devil Worlds Launcher:
Latest version is: N/A