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.
Forgotten Realms Campaign Setting
To usher in the new edition of "Dungeons & Dragons", major events occur in the world. The most notable of these include the death of the goddess Mystra and her Weave, and the subsequent Spellplague, a phenomenon which occurs with the decomposition of the Weave and either kills spellcasters or drives them mad. This Spellplague causes calamitous events in the environment and the natural world, such as animation of giant statues, violent earthquakes, corruption of various beings into monsters, and the collapse of some regions of the Underdark. Popular characters such as Elminster and Drizzt Do'Urden are stated to be included. An additional campaign setting book, covering the city of Neverwinter and its environs was released in 2011, while an overview of the history, both fictional and real-world, of the Realms was published as "Ed Greenwood Presents Elminster's Forgotten Realms" in 2012, written by Realms creator Ed Greenwood.