The Dark Tower World is referred to as the Central World, a magical but declining world. There are many ruins here, and judging by the ruins, there must once have been a highly civilized world here. However, except for leaving some ruins, the original civilization has left nothing behind over time.
The current Central World is akin to a medieval fantasy world. Some have figured out how to use ancient equipment found within the ruins, but most people remain ordinary folk, primarily surviving through agriculture and animal husbandry.
