Diamond City appears in Fallout 4, Fallout Shelter Online, and Winter of Atom. It is mentioned in Zoe's diary in the Automatron add-on[23] and by Lizzie Wyath in the Nuka-World add-on.[24] It is also mentioned in a question in the Fallout Shelter weekly quest Game Show Gauntlet. ...
The world of F3 feels even less developed than that of Fallout 1. It feels like everybody in the world has just picked all the junk and tried to build a provisional rain shelter. Well maybe except for the ship-city. 2)