- _Spider Moon_ (1992)
- _Blood Moon_ (1993)
- _Lunar Eclipse_ (1994)
- _Total Eclipse_ (1995)
- _Apocalypse 2000_ (1996)
- _Ice Station_ (1998)
- _Operation Red Jericho_ (1999)
- _The Lazarus Strain_ (2000)
- _The Osiris Conspiracy_ (2001)
- _The Omega Directive_ (2002)
- _The Armageddon Strain_ (2003)
- _The Eden Virus_ (2004)
- _The Satan Strain_ (2005)
- _The Armageddon Agenda_ (2006)
- _The Lucifer Deception_ (2007)
- _The Apophis Prophecy_ (2008)
- _The Omega Conspiracy_ (2009)
- _The Mayan Codex_ (2010)
- _The Aztec Apocalypse_ (2011)
- _The Inca Prophecy_ (2012)
- _The Lost City_ (2013)
- _The Seven Deadly Sins_ (2014)
- _The Ten Commandments_ (2015)
- _The Four Horsemen_ (2016)
- _The Apocalypse Revelation_ (2017)
- _Η Ημέρα της Κρίσης_ (2018)
Μη μυθοπλασία:
- _The Real History of the End of the World_ (1996)
- _The Secret History of the Reptilians_ (2000)
- _UFOs and Aliens_ (2002)
- _Paranormal Encounters_ (2004)
- _Θεωρίες Συνωμοσίας_ (2006)
- _Urban Legends_ (2008)
- _Fortean Phenomena_ (2010)
- _The Mysterious World of the Occult_ (2012)