D&D Player's Handbook
Publisher: Wizards of the Coast
System: D&D fifth edition
Type: Accessory
https://store.steampowered.com/app/360090
D&D Sword Coast Adventurer's Guide
Publisher: Wizards of the Coast
System: D&D fifth edition
Type: Setting
https://store.steampowered.com/app/415570
Paths to Adventure: Taverns and Storefronts
Publisher: AAW Games
System: Generic Add-ons
Type: Map Module
https://store.steampowered.com/app/872260
The Breaking of Forstor Nagar
Publisher: Rite Publishing
System: Pathfinder RPG and D&D 3.5/ OGL
Type: Adventure
https://store.steampowered.com/app/313520