Forgotten Realms

The Forgotten Realms is a campaign setting for the Dungeons & Dragons fantasy role-playing game, originally created by author and game designer Ed Greenwood around 1967 for his childhood stories and later developed for D&D from 1987. Centred on the world of Toril and its primary continent of Faerûn, it is one of the most popular and detailed published fantasy settings, supporting hundreds of novels (R.A. Salvatore's Drizzt series, the Avatar trilogy) and video games such as Baldur's Gate, Icewind Dale and Neverwinter Nights (Wikipedia)