I am currently working on an urban campaign set in the city of Katapesh. So far I'm brainstorming the plot and was wondering if anyone has attempted this before or has any advice concerning a campaign set within the city.
So far I am planning on the PC's raiding the Violet Fire in the Nightstalls (to what End I don't know), exploring the Smoking Ruin, fighting in the gladiator arena, exploring the slave markets, and perhaps eventually facing off against one (or maybe even all) of the Pactmasters.
I've never ran a campaign in Katapesh before. It seems like a very cool location, but one that would require more prep-time than most Inner Sea regions.
Did Piazo ever release a setting book for it? If not, it could really use one.
Are those creepy things that rule there, aliens? I don't remember.
They did release a source book back when pathfinder was 3.5. And yeah, the Pactmasters are Witchwyrds.
Check out the Legacy of Fire Player's Guide - it's a free download from Paizo, & should give you some help.