| Series | | Books |
| |
| The Executioner | | (1998) |
| | | (1998) |
| |
| Other | | Stoneface [Deathlands] (1996) |
| | | Demons of Eden [Deathlands] (1997) |
| | | Savage Sun [Outlanders] (1997) |
| | | Destiny Run [Outlanders] (1997) |
| | | Nightmare Passage [Deathlands] (1997) |
| | | Exile to Hell [Outlanders] (1997) |
| | | Omega Path [Outlanders] (1998) |
| | | Parallax Red [Outlanders] (1998) |
| | | Doomstar Relic [Outlanders] (1998) |
| | | Iceblood [Outlanders] (1998) |
| | | Outer Darkness [Outlanders] (1999) |
| | | Armageddon Axis [Outlanders] (1999) |
| | | Night Eternal [Outlanders] (1999) |
| | | Hellbound Fury [Outlanders] (1999) |
| | | Shadow Scourge [Outlanders] (2000) |
| | | Hell Rising [Outlanders] (2000) |
| | | Doom Dynasty [Outlanders] (2000) |
| | | Tigers of Heaven [Outlanders] (2001) |
| | | Purgatory Road [Outlanders] (2001) |
| | | Tomb of Time [Outlanders] (2001) |
| | | Far Empire [Outlanders] (2002) |
| | | Devil in the Moon [Outlanders] (2002) |
| | | Dragoneye [Outlanders] (2002) |
| | | Equinox Zero [Outlanders] (2003) |
| | | Talon and Fang [Outlanders] (2003) |
| | | Sea of Plague [Outlanders] (2003) |
| | | Mad God's Wrath [Outlanders] (2004) |
| | | Mask of the Sphinx [Outlanders] (2004) |
| | | Evil Abyss [Outlanders] (2005) |
| | | Children of the Serpent [Outlanders] (2005) |
| | | Cerberus Storm [Outlanders] (2005) |
| | | Rim of the World [Outlanders] (2006) |
| | | Hydra's Ring [Outlanders] (2006) |
| | | Skull Throne [Outlanders] (2007) |
| | | Dark Goddess [Outlanders] (2007) |
| | | Satan's Seed [Outlanders] (2007) |
| | | Grailstone Gambit [Outlanders] (2008) |
| | | Ghostwalk [Outlanders] (2008) |
| | | Death Hawk [Soulworm Saga] (2008) |
| | | Warlord of the Pit [Outlanders] (2009) |
| | | Cryptozoica (2010) |
| | | Loki's Rock [Spur] (2012) |
| | | Rag Baby [Bone Mizell Mystery] (2013) |
| | | Helldorado [Spur] (2016) |
| | | Of Dire Chimeras [Parallax Prime] (2017) |
| |