Work outside the "Freehold" universe includes "The Hero" (2004), written with John Ringo, and the time travel story "A Long Time Until Now" (2014). Short fiction by Williamson includes the story "Soft Casualty", an exploration of psychological warfare which won a readers' choice award organized by Baen Books. Williamson's "Wisdom From My Internet", a collection of witticisms and political polemic from the Internet, was nominated for a Hugo Award for Best Related Work in 2015. As of 2016, Williamson's books had sold half a million copies.