Dungeons & Dragons - Lair Assault: Talon of Umberlee (5E)
Publisher: Wizards of the Coast
System: D&D fifth edition
Type: Adventure
https://store.steampowered.com/app/585110
D&D Volo's Guide to Monsters
Publisher: Wizards of the Coast
System: D&D fifth edition
Type: Accessory
https://store.steampowered.com/app/549380
Ultimate NPCs - Skullduggery (5E)
Publisher: Nord Games LLC
System: 5E Compatible
Type: Accessory
https://store.steampowered.com/app/528480
Deadlands Noir
Publisher: Pinnacle Entertainment Group
System: Savage Worlds
Type: Setting
https://store.steampowered.com/app/317830
Fields of Battle
Publisher: Troll Lord Games
System: Castles & Crusades
Type: Accessory
https://store.steampowered.com/app/537890
PFRPG Basic Paths: Wrath of the Orc God
Publisher: 0one Games
System: Pathfinder RPG and D&D 3.5/ OGL
Type: Adventure
https://store.steampowered.com/app/541980