* The Gospel of the Knife (2005)
* Ascending Olympus (2007)
* Walk a Crooked Line (2009)
* The Shadow God (2012)
* American Caesar (2014)
* Barbarian King (2017)
* Red Skies Over Rome (2018)
* God of War (2020)
Non-fiction:
* The Last Caesar: A Life of Constantine (2011)