| Macrolife | 1990 |
| Stranger Suns | 1991 |
| The Killing Star (With Charles R. Pellegrino) | 1995 |
| Brute Orbits | 1998 |
| Cave of Stars | 1999 |
Star Trek Novels |
|
| Heart of the Sun (With Pamela Sargent) | 1997 |
| Across the Universe (With Pamela Sargent) | 1999 |
Star Trek: TNG Novels |
|
| A Fury Scorned (With Pamela Sargent) | 1996 |
| Division Sphere (With Charles R. Pallegrino) | 1999 |
| The Dyson Sphere (With Charles R. Pallegrino) | 1999 |
Sunspace Series |
|
| Sunspacer | 1984 |
| The Stars Will Speak | 1985 |
| Behind the Stars | 1993 |
Anthologies |
|
| "The Eichmann Variations" - Light Years and Dark | 1984 |
| "Godel's Doom" - Mathenauts | 1987 |
| "In the Flow of Synergies" - Cynergy: New SF 2 | 1988 |
| "Foundation's Conscience" - Foundation's Friends | 1989 |
| "Lenin in Odessa" - Alternate Heros | 1990 |
| "Sacred Fire" - There Won't Be War | 1991 |
| "The Number of the Sand" - Alternate Wars | 1991 |
| "Let Time Shape" - Alternate Americas | 1992 |
| "This Life and Later Ones" - Simulations | 1993 |
| "Afternoon Ghosts" - Return to the Twilight Zone | 1994 |
| "Swift Thoughts" - Amazing Stories: The Anthology | 1995 |
| "The Wish in the Fear" - More Phobias | 1995 |
| "Fire of Spring" - 100 Vicious Little Vampire Stories | 1995 |
| "The Soft Terrible Music" - Castle Fantastic | 1996 |
| "Hell Just Over the Hill" - Phantoms of the Night | 1996 |
| "Starcrossed" - CyberSex | 1996 |
| "Listen, Love" - 100 Amazing Little Alien Stories | 1996 |
| "This Life and Later Ones" - Technohorror | 1999 |