The campaign setting is illustrated in a series of nine large-scale maps, typically distributed as a ZIP archive of JPG images. The maps depict "real world" continents overlaid with locations of significance in the setting.
Amethyst is an RPG conversion utilizing d20 System / OGL Product (D&D 3.5 Compatible). Some elements of d20 Modern are incorporated; however, that system is not required to play. The use of Amethyst does require: