Generic / Universal
Achtung! Cthulhu Blackmoor Calandia Convicts & Cthulhu Cthulhu Invictus DC Universe Dragon Kings Drakonheim Embers of the Forgotten Kingdom Freeport Generic / Universal Glorantha Hârn H.G. Wells' the War of the Worlds Kingdoms of Kalamar Lankhmar / Nehwon Middle-Earth Primeval Thule Ptolus Pulp Egypt Shadow World (Rolemaster) Slipstream Sundered Skies Talislanta The Lost Lands The Old World The Sixth World The Ultraviolet Grasslands Thieves' World Wilderlands of High Fantasy World of Erde
Fantasy Fantasy (High Fantasy) Fantasy (Low Fantasy) Generic / Universal Fantasy (Modern Urban Fantasy) Science Fiction (Cyberpunk) Horror (Supernatural) Fantasy (Sword & Sorcery) Horror Crime (Criminal / Law Enforcement) Crime Horror (Cthulhu Mythos) History Mythology / Folklore History (Europe) War Holiday-Themed History (Alternative) History (Americas) Modern Action / Adventure (Superheroes) Fantasy (Science Fantasy) Action / Adventure (Pulp) Action / Adventure (Swashbuckling / Pirates) Action / Adventure (Nautical) Action / Adventure
This category is for those supplements which were not written for a specific game but were written for a wide variety of different games.