A Call of Cthulhu setting of modern horror and conspiracy from Pagan Publishing. While Call of Cthulhu focuses on stories set in the 1920s era germane to the original H.P. Lovecraft stories, Delta Green imagines what that world might be like in the 1990s.
The primary organization of the game is Delta Green, a conspiracy of government agents and others in the know who know of paranormal forces, and oppose them. The setting has a strong 90's conspiracy focus. The books in the series also cover many other organizations, ranging from powerful and sinister to benign.