Jag har bara tagit med huvudvärldarna, inte delkampanjmiljöer som The Horde till Forgotten Realms, eller Blackmoor till D&D.
D&D, Egna: Werld 101, Feoreth, Nabourne, Chaos World, Champions of the Eternities, Dolgar's Sphere
D&D: Forgotten Realms, Greyhawk, Dragonlance, Spelljammer, Mystara, Planescape, Lankhmar, Dark Sun, Jakandor, Ravenloft, Eberron, Ghostwalk, The World
Jorden: TORG, Top Secret/SI, Gangbusters, Boot Hill, Dark*Matter, Call of Chtulhu, Shadowrun, Vampire, Mage, Werewolf, Ars Magica, Chock, Castle Falkenstein, Cell Gamma, WTF!?, Dangerous Journeys, Dak Conspiracy, Gamma World, Judge Dredd, Marvel, Kult, Mutant (alla versioner), Viking, Wateland, Western
DoD: Ereb Altor, Chronopia, Trudvang
DoD: 2 egna ej namngivna
Diverse: Glorantha, Numenera, Shadow World, Middle Earth, Palladium, Aliens, Traveller: The New Era, Star Trek, Star*Drive, Star Wars, Buck Rogers, Discworld, Dark Eye, Eclipse Phase, Mundana, Hârn, Infinity, Tales from the Floating Vagabond, Tunnels and Trolls
Andra egna: Courts of Alcairthonn, Go Your Own Way