Cult of the Sky Titans

From the publishers blurb:

A blight creeps across the land. Trees blacken and die. People disappear in the night, only to return taken by madness and rot. The spirits cry out for heroes.

Cult of the Sky Titans is a psychedelic dark fantasy module set in the Stone Age that could have been. It is designed specifically for first-level Knave characters built using the Fire & Stone Players’ Guide, but can be used with almost any Old-School system with minimal effort.

Within its pages you’ll find:

A meagre Palaeolithic tribe where food is scarce and tensions are running high
A psychedelic 19-room cave system filled with danger and curiosity
Awful cultists, crystalline blood monsters and a half-built Titan
Plots, mysteries and factions to uncover