Earl of Fife's original d10 dice pool system. 

Adventures for many great RPGs, including Demo Gate, Against the Darkmaster, etc.

Adventures for Mothership RPG. 

OSR adventures for Old-School Essentials and MORK BORG.

Mythras and Basic RolePlaying adventures.

d20 OGL adventures, for 13th Age, 5E, Starfinder, and more.

Stars Without Number adventures.