Cities of the Underworld - 2007 Underground Bootleggers 1-12 was released on:
USA: 23 July 2007
Cities of the Underworld - 2007 A-Bomb Underground - 2.3 was released on: USA: 11 February 2008
Cities of the Underworld - 2007 Dracula's Underground 1-10 was released on: USA: 9 July 2007
Cities of the Underworld - 2007 A-Bomb Underground 2-3 was released on: USA: 11 February 2008
Cities of the Underworld - 2007 Underground Apocalypse 2-1 was released on: USA: 28 January 2008
Cities of the Underworld - 2007 Viking Underground 2-4 was released on: USA: 28 February 2008
Cities of the Underworld - 2007 Maya Underground 2-6 was released on: USA: 10 March 2008
Cities of the Underworld - 2007 Hitler's Underground Lair 1-2 was released on: USA: 30 April 2007 Japan: 14 January 2008
Cities of the Underworld - 2007 Freemason Underground 1-9 is rated/received certificates of: Singapore:PG
Cities of the Underworld - 2007 Istanbul 1-0 was released on: USA: 2 March 2007
Cities of the Underworld - 2007 Katrina 2-12 was released on: USA: 28 April 2008
Cities of the Underworld ended in 2009.
Cities of the Underworld - 2007 New York 1-6 was released on: USA: 28 May 2007