A world-building personal project that I started and will continue in my free time.
Much is still in development, but the idea is an artisan society that specializes in kiln technology & lives in an alien lava stepwell with red sands.
The stepwell would be a massive trade market where people would go for their oven-related services or for rare volcanic stones. Perhaps outsiders would bring the resources, and the furnace folk would smelt or forge specialized weapons/pots/food with these outside elements.
I also wanted the architecture to reflect how they utilize the hardened lava to carve or build their structures in an organic, man-made way.