Award Years for Prometheus Award
| 1970's: | - | - | - | - | - | - | - | - | - | 1979 |
| 1980's: | - | - | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
| 1990's: | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 |
| 2000's: | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| 2010's: | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| 2020's: | 2020 | 2021 | 2022 | 2023 | - | - | - | - | - | - |
| Prometheus Award for Best Libertarian SF Novel | ||
| Win | Rich Man's Sky | Wil McCarthy |
| Nomination | Between Home and Ruin | Karl K. Gallagher |
| Nomination | Klara and the Sun | Kazuo Ishiguro |
| Nomination | Seize What's Held Dear | Karl K. Gallagher |
| Nomination | Should We Stay or Should We Go | Lionel Shriver |
| Prometheus Hall of Fame Award | ||
| Win | Citizen of the Galaxy | Robert A. Heinlein |
| Nomination | Circus World | Barry B. Longyear |
| Nomination | That Hideous Strength | C. S. Lewis |
| Nomination ⓘDescribed as "a 1978 song by the rock group Rush" on the award Web site. |
The Trees | Rush |