Campaign setting
fictional world which serves as a setting for a role-playing game or wargame campaign
demon
Critical Role: Tal'Dorei Campaign Setting
Iron Kingdoms
World of Darkness
Savage Coast
Masque of the Red Death and Other Tales
Empire of the Petal Throne
Delta Green
Birthright
World of Ice and Fire
Wild Cards
Jovian Chronicles
Kara-Tur
Scarred Lands
Midnight
Shadow World
Star*Drive
2300 AD
City State of the Invincible Overlord
Dark Ages
Dark•Matter
Far Realm
Freedom City
Dark Sun
Hollow World Campaign Set
living campaign
META-4
The Forgotten Realms Atlas
The Wheel of Time Roleplaying Game
Uncaged: Faces of Sigil
Weird Wars
Multiverse
Forgotten Realms
Masque of the Red Death
Sword Coast Adventurer's Guide