Forgotten Realms
The "Campaign Set" (often referred to as the "Grey Box") was later released in 1987 as a boxed set of two source books ("Cyclopedia of the Realms" and "DM's Sourcebook of the Realms") and four large maps, designed by Greenwood in collaboration with author Jeff Grubb. The set introduced the campaign setting and explained how to use it, and reserved space on the map for SSI's Gold Box computer role-playing games set in the Forgotten Realms.
List of Forgotten Realms deities
The deities of other "Dungeons & Dragons" campaign settings, including those of the default (or "core") setting for the "Dungeons & Dragons" game, are not generally a part of Forgotten Realms. However, there is some overlap, especially among the deities of nonhuman races. Lolth, the principal deity of the drow in the Forgotten Realms, is specifically described as being the same deity as Lolth in other campaign settings. No mention is made as to whether other deities shared between Forgotten Realms and other campaign settings are intended to represent the same divine entity.