- "Disintegration" (2003)
- "Silo" (2003)
- "Footsteps of the Gods" (2004)
- "The Rapture of the Nerds" (2005)
- "Defend the Homeland" (2006)
- "The Lazarus War" (2007)
- "The Armageddon Protocols" (2008)
- "The Prometheus Project" (2009)
- "The Apocalypse Option" (2010)
- "The Judas Mandate" (2011)
- "The Omega Ultimatum" (2012)
- "Ghost Fleet" (2014)
- "Operation Typhoon" (2015)
- "The Kremlin Strike" (2016)
- "Zero Day" (2017)
Non-fiction
- "The Truth about the UFO Crash at Roswell" (2005)