I'm sharing my collection of Game Design Documents from famous games. Just select the link bellow and you will open a new page to a PDF file.
Note: All these GDD have been approved to be shared by the authors.
Doom
Fallout: Brotherhood of Steel 2
Fallout: Brotherhood of Steel 2 was the canceled sequel to Fallout: Brotherhood of Steel and was in development by Interplay Entertainment who would self-publish it if it were ever made.
Wikipedia
Grand Theft Auto
As many do not know. GTA started out as a racing game that later developed into GTA on PSX which we have today.
Grim Fandango
Silent Hill
Torment
Tron
