Created Worlds

The World of Gwelith
Entertainment, Games, Roleplaying, World Building, Created Worlds - Gwelith. Details include a geographical and political atlas, histories, deity and priesthood descriptions, cultural notes, and campaign chronicles.
http://www.gwelith.co.uk/
MetaMythos - RPG Campaign and World Design
RPG campaign design and world building for RuneQuest, Basic Roleplaying and d20 Dungeons and Dragons. A campaign world with maps, descriptions and usable locales. World building methods and tools for mapping, religion, magic and cultures in RPGs.
http://www.metamythos.net/
Terra Viejo
Entertainment, Games, Roleplaying, World Building, Created Worlds - Terra Viejo. A representation of our middle ages earth with the traditional fantasy elements added in.
http://www.terra-viejo.net/
Arwann - Journey into Worlds Unknown
Entertainment, Games, Roleplaying, World Building, Created Worlds - Arwann. Unique races, as well as D&D 3e classes and house rules, complement nation descriptions and historical notes.
http://arwann.www8.50megs.com/
Alina: The Ship amongst the Stars
Entertainment, Games, Roleplaying, World Building, Created Worlds - Alina: The Ship Amongst the Stars. The atlas includes historical, political, and cultural notes for one human and one elven kingdom.
http://nyjm.users2.50megs.com/
the Orion's Arm Universe Project
Entertainment, Games, Roleplaying, World Building, Created Worlds - Orion's Arm. A collaborative science fiction multi-race universe.
https://www.orionsarm.com/