Hey, I really appreciated this setting blurb. Evocative and definitely interesting.
Viewing post in The Southstone jam comments
Honestly, I find the ones with setting hooks a bit easier to be inspired by, rather than having to come up with a premise to match the mechanics. I ended up going the same direction myself, and you inspired me to start daydreaming about the last city at the end of the world, so it's been effective/affective for me.