LaNague
1. Healer (1976)
2. Wheels within Wheels (1978)
3. An Enemy of the State (1980)
4. Dydeetown World (1989)
5. The Tery (1989)
The LaNague Chronicles (omnibus) (1992)
The Complete LaNague (2013)

Adversary Cycle
1. The Keep (1981)
2. The Tomb (1984)
3. The Touch (1986)
4. Reborn (1990)
5. Reprisal (1991)
6. Nightworld (1992)
The Peabody-Ozymandias Traveling Circus & Oddity Emporium (2009)

Repairman Jack
1. Legacies (1998) (with Colin Andrews (F Paul Wilson))
2. Conspiracies (1998)
3. All the Rage (2000)
4. Hosts (2001)
5. The Haunted Air (2002)
6. Gateways (2003)
7. Crisscross (2004)
8. Infernal (2005)
9. Harbingers (2006)
10. Bloodline (2007)
11. By the Sword (2008)
12. Ground Zero (2009)
13. Fatal Error (2010)
15. The Dark at the End (2011)
The Last Rakosh (2006)
Quick Fixes: Tales of Repairman Jack (2011)

Sims
1. La Causa (2000)
2. The Portero Method (2001)
3. Meerm (2002)
4. Zero (2005)
5. Thy Brother's Keeper (2008)
Sims (omnibus) (2003)

Jack
1. Secret Histories (2008)
2. Secret Circles (2010)
3. Secret Vengeance (2011)
Repairman Jack: The Teen Trilogy (omnibus) (2013)

Early Years Trilogy
1. Cold City (2012)
2. Dark City (2013)

Black Wind (1988)
Midnight Mass (1990)
Sibs (1991)
     aka Sister Night
The Barrens (1992)
The Foundation (1993) (with Colin Andrews (F Paul Wilson))
     aka The Select
Implant (1995) (with Colin Andrews (F Paul Wilson))
Virgin (1996) (with Mary Elizabeth Murphy (F Paul Wilson))
Deep as the Marrow (1996) (with Colin Andrews (F Paul Wilson))
Mirage (1996) (with Matthew J Costello)
Nightkill (1997) (with Steven Spruill)
Masque (1998) (with Matthew J Costello)
     aka DNA Wars
The Fifth Harmonic (2003)
Draculas (2010) (with Blake Crouch, Jack Kilborn, J A Konrath and Jeff Strand)

Binary Star, no. 2. (1979) (with Gordon Eklund)
Calling Dr. Death (2013)

Soft and Others (1984)
Ad Statum Perspicuum (1990)
The Barrens and Others (1998)
Artifact (2003) (with Kevin J Anderson, Janet Berliner and Matthew J Costello)
The Evil Entwines, Extended version (2005) (with John B Ford and Thomas Ligotti)
Aftershock & Others: 19 Oddities (2009)
Horror For Good (2012) (with Ramsey Campbell, Ray Garton, Jack Ketchum, Joe R Lansdale, Joe McKinney, Lisa Morton, Jeff Strand and Lee Thomas (Lee Floren))

Completely Doomed (2007) (with Robert Bloch, Richard Matheson and David J Schow)
Sex Slaves Of The Dragon Tong: Dark Voices Volume 6 (2007)

Masques: All New Works of Horror and the Supernatural (1984)
Whispers VI (1987)
Silver Scream (1988)
Night Visions 6: The Bone Yard (1988)
New Destinies, Vol. VII (1989)
The Year's Best Fantasy Second Annual Collection (1989)
     aka Demons and Dreams
Between Time and Terror (1990)
Lovecraft's Legacy (1990)
Best New Horror 2 (1991)
The Mammoth Book of Terror (1992)
The Mammoth Book of Vampires (1992)
Predators (1993)
Cthulhu 2000: A Lovecraftian Anthology (1995)
Great Writers and Kids Write Spooky Stories (1995)
David Copperfield's Tales of the Impossible (1995)
The Best of Weird Tales (1995)
Night Screams (1996)
Diagnosis - Terminal: An Anthology of Medical Terror (1996)
100 Tiny Tales of Terror (1996)
Rivals of Dracula (1996)
The Mammoth Book of Dracula: Vampire Tales for the New Millennium (1997)
Millennium (1997)
Dancing with the Dark (1997)
A Magic-Lover's Treasury of the Fantastic (1998)
999: Twenty-nin Original Tales of Horror and Suspense (1999)
Vampire Slayers: Stories of Those Who Dare to Take Back the Night (1999)
The Mammoth Book of Best New Horror Volume Eleven (2000)