It's for a setting / story idea that's been floating around my mind for quite some time now. The gist is that Moonfall (which wasn't always its name) is a cold desert world around 1800 years after a global cataclysm that's now in the middle of its first phase of industrialization. Much of its civilization is located on the northern half of the globe, with geographic features, oceanic currents and weather patterns leaving much of the southern half an untouched and unexplored wasteland. People have good reasons to believe in magic and monsters: there are individuals who possess great powers, and parts of the local wildlife are semi-intelligent and extremely dangerous.
Scattered across the globe (and more so in the south) are ruins and artifacts of a mysterious forerunner civilization, commonly called the Small Folk
, some of which stand tall even to this day.