Pathfinder RPG - NPC Codex
Publisher: Paizo Inc.
System: Pathfinder RPG and D&D 3.5/ OGL
Type: Accessory
https://store.steampowered.com/app/891930
Rappan Athuk Bestiary
Publisher: Frog God Games
System: Pathfinder RPG and D&D 3.5/ OGL
Type: Accessory
https://store.steampowered.com/app/893340
Dungeonlands Intro Pack
Publisher: Savage Mojo Ltd.
System: Savage Worlds
Type: Free Supplement
https://store.steampowered.com/app/892660