Lost Worlds - 2006 Hitler's Supercity 1-6 was released on:
USA: 14 August 2006
Lost Worlds - 2006 Lost City of Aphrodite 2-19 was released on: USA: 7 December 2007
As Worlds Collide - 2014 was released on: USA: 2014
Lost Worlds - 2006 was released on: USA: June 2006
Worlds Apart - 1921 was released on: USA: January 1921
Opposite Worlds - 2014 Worlds 1-3 was released on: USA: 28 January 2014
Magical Worlds - 1993 was released on: USA: 28 September 1993
Worlds Collapse - 2014 was released on: USA: 22 August 2014
War of the Worlds - 2013 was released on: USA: 31 October 2013 (internet)
Lost Worlds - 2002 was released on: USA: 2002 UK: November 2002
Moons Worlds of Mystery - 2012 was released on: USA: December 2012
A Tale of Two Worlds - 1921 was released on: USA: 13 March 1921
Between Two Worlds - 1998 was released on: USA: 1 June 1998