The Valley of the Black Ziggurat

From publisher blurb:

"Valley of the Black Ziggurat," expands on the Kal-Arath core rules, introduces exciting new skills, magic, items, monsters, all new encounter and point of interest tables, plus -

an entirely new region called The Jungles of Lhar, and a procedurally generated massive outdoor area/dungeon the zine is named after.

It also includes rules for trading and merchant campaigns, mass combat rules, and a name table for NPCs and villages to keep your campaign world coherent.

This add-on zine is designed to challenge players who have built up their characters and are looking to brave new dangers and treacherous, legendary opponents.