| 2026 | The Everlasting | Alix E Harrow |
| ✅ | 2025 | The Tainted Cup | Robert Jackson Bennett |
| ✅ | 2024 | Some Desperate Glory | Emily Tesh |
| ✅ | 2023 | Nettle & Bone | Ursula Vernon (T Kingfisher) |
| ✅ | 2022 | A Desolation Called Peace | Arkady Martine |
| ✅ | 2021 | Network Effect | Martha Wells |
| ✅ | 2020 | A Memory Called Empire | Arkday Martine |
| ✅ | 2019 | The Calculating Stars | Mary Robinette Kowal |
| ✅ | 2018 | The Stone Sky | N. K. Jemison |
| ✅ | 2017 | The Obelisk Gate | N. K. Jemison |
| ✅ | 2016 | The Fifth Season | N. K. Jemison |
| 2015 | The Three-Body Problem | Cixin Liu (Translated by Ken Liu) |
| ✅ | 2014 | Ancillary Justice | Ann Leckie |
| ✅ | 2013 | Redshirts | John Scalzi |
| 2012 | Among Others | Jo Walton |
| 2011 | Blackout + All Clear | Connie Willis |
| 2010 | The Windup Girl | Paolo Bacigalupi |
| 2010 | The City & the City | China Mieville |
| 2009 | The Graveyard Book | Neil Gaiman |
| 2008 | The Yiddish Policemen’s Union | Michael Chabon |
| 2007 | Rainbows End | Vernor Vinge |
| 2006 | Spin | Robert Charles Wilson |
| ✅ | 2005 | Johnathan Strange & Mr. Norrell | Susanna Clarke |
| 2004 | Paladin of Souls | Lois McMaster Bujold |
| 2003 | Hominids | Robert J Sawyer |
| ✅ | 2002 | American Gods | Neil Gaiman |
| ✅ | 2001 | Harry Potter and the Goblet of Fire | J. K. Rowling |
| 2000 | A Deepness in the Sky | Vernor Vinge |
| 1999 | To Say Nothing of the Dog | Connie Willis |
| 1998 | Forever Peace | Joe Haldeman |
| ✅ | 1997 | Blue Mars | Kim Stanely Robinson |
| 1996 | The Diamond Age | Neal Stephenson |
| 1995 | Mirror Dance | Lois McMaster Bujold |
| ✅ | 1994 | Green Mars | Kim Stanley Robinson |
| 1993 | A Fire Upon the Deep | Vernor Vinge |
| 1993 | Doomsday Book | Connie Willis |
| 1992 | Barrayar | Lois McMaster Bujold |
| 1991 | The Vor Game | Lois McMaster Bujold |
| ✅ | 1990 | Hyperion | Dan Simmons |
| 1989 | Cyteen | C. J. Cherryh |
| 1988 | The Uplift War | David Brin |
| 1987 | Speaker for the Dead | Orson Scott Card |
| 1986 | Ender’s Game | Orson Scott Card |
| ✅ | 1985 | Neuromancer | William Gibson |
| 1984 | Startide Rising | David Brin |
| 1983 | Foundation’s Edge | Isaac Asimov |
| 1982 | Downbelow Station | C. J. Cherryh |
| 1981 | The Snow Queen | Joan D. Vinge |
| 1980 | The Fountains of Paradise | Arthur C. Clarke |
| 1979 | Dreamsnake | Vonda N. McIntyre |
| 1978 | Gateway | Frederik Pohl |
| 1977 | Where Late the Sweet Birds Sang | Kate Wilhelm |
| ✅ | 1976 | The Forever War | Joe Haldeman |
| ✅ | 1975 | The Dispossessed | Ursula K Leguin |
| 1974 | Rendezvous with Rama | Arthur C. Clarke |
| 1973 | The Gods Themselves | Isaac Asimov |
| 1972 | To Your Scattered Bodies Go | Philip Jose Farmer |
| ✅ | 1971 | Ringworld | Larry Niven |
| ✅ | 1970 | The Left Hand of Darkness | Ursula K Leguin |
| 1969 | Stand on Zanzibar | John Brunner |
| ✅ | 1968 | Lord of Light | Roger Zelazny |
| 1967 | The Moon is a Harsh Mistress | Rober A. Heinlein |
| ✅ | 1966 | Dune | Frank Herbert |
| 1966 | …And Call Me Conrad | Roger Zelazny |
| 1965 | The Wanderer | Fritz Leiber |
| 1964 | Here Gather the Stars | Clifford D. Simak |
| ✅ | 1963 | The Man in the High Castle | Philip K. Dick |
| 1962 | Stranger in a Strange Land | Rober A. Heinlein |
| 1961 | A Canticle for Leibowitz | Walter M. Miller, Jr. |
| ✅ | 1960 | Starship Troopers | Rober A. Heinlein |
| 1959 | A Case of Conscience | James Blish |
| 1958 | The Big Time | Fritz Leiber |
| 1956 | Double Star | Robert A. Heinlein |
| 1955 | They’d Rather Be Right | Mark Clifton + Frank Riley |
| 1953 | The Demolished Man | Alfred Bester |