Watershed
1. A Breach the Watershed (1995)
2. Darkenheight (1996)
3. War of Three Waters (1997)

Seven Circles
1. Circle at Center (2000)
2. World Fall (2001)
3. The Goddess Worldweaver (2003)

Starstrike (with Kevin Dockery)
1. Task Force Mars (2007)
2. Operation Orion (2008)

Winds of Change (1992)
The Rod of Seven Parts (1996)
Fox on the Rhine (2000) (with Michael Dobson)
Fox at the Front (2003) (with Michael Dobson)
War of the Worlds: New Millenium (2005)
MacArthur's War: A Novel of the Invasion of Japan (2007) (with Michael Dobson)

Horror on the Hill (1983)
The Odyssey of Gilthanas (1999) (with Steve Miller)

Super Endless Quest
3. Escape from Castle Quarras (1985)

Endless Quest
26. Tarzan and the Well of Slaves (1985)

Dragonlance
Dragons of Glory (1986) (with Margaret Weis)
Dragons of Triumph (1986)
Lords of Doom (1986)

Forgotten Realms : Moonshae
1. Darkwalker on Moonshae (1987)
2. Black Wizards (1988)
3. Darkwell (1989)
The Moonshae Trilogy (omnibus) (1989)

Forgotten Realms : Maztica
1. Ironhelm (1990)
2. Viperhand (1989)
3. Feathered Dragon (1991)

Dragonlance : Preludes II (with Mary Kirchoff)
2. Flint, the King (1990)

Dragonlance : Elven Nations
2. The Kinslayer Wars (1991)
The Elven Nations Gift Set (2005) (with Tonya C Cook and Paul B Thompson)
The Elven Nations Omnibus (omnibus) (2009) (with Tonya C Cook and Paul B Thompson)

Forgotten Realms : Druidhome
1. Prophet of Moonshae (1992)
2. The Coral Kingdom (1992)
3. The Druid Queen (1993)

Dragonlance : Villains
3. Emperor of Ansalon (1993)

Dragonlance : Lost Histories
1. The Kagonesti (1995)
6. The Dragons (1996)

First Quest
1. Pawns Prevail (1995)
3. Immortal Game (1996)
Suitors Duel (1995)

Dragonlance : Lost Legends
2. Fistandantilus Reborn (1997)

Dragonlance : Chaos War
1. The Last Thane (1998)
3. Seeds of Chaos (1998)
4. The Puppet King (1999)
7. Chaos Spawn (1999)

Dragonlance : IceWall
1. The Messenger (2001)
2. The Golden Orb (2001)
3. Winterheim (2003)

Dragonlance : Age of Mortals
5. Wizards' Conclave (2004)

Dragonlance : Rise of Solamnia
1. Lord Of The Rose (2005)
2. The Crown and the Sword (2006)
3. The Measure and the Truth (2007)

Dragonlance : Dwarf Home
1. The Secret of Pax Tharkas (2007)
2. The Heir of Kayolin (2008)
3. The Fate of Thorbardin (2010)