Star Trek novels

• The Next Generation: Diplomatic Implausibility (2001), ISBN 0-671-78554-0
• Deep Space Nine: Demons of Air and Darkness (2001), ISBN 0-7434-1852-2
• The Brave and the Bold (2002), ISBN 0-7434-1922-7 (Book 1), ISBN 0-7434-1923-5 (Book 2)
• The Lost Era: The Art of the Impossible (2003), ISBN 0-7434-6405-2
• I.K.S. Gorkon: A Good Day to Die (2003), ISBN 0-7434-5714-5
• I.K.S. Gorkon: Honor Bound (2003), ISBN 0-7434-5716-1
• The Next Generation: A Time for War, A Time for Peace (2004), ISBN 0-7434-9179-3
• Ferenginar: Satisfaction Is Not Guaranteed in Worlds of Deep Space Nine Volume 3 (2005), ISBN 0-7434-8353-7
• I.K.S. Gorkon: Enemy Territory (2005), ISBN 1-4165-0014-6
• Articles of the Federation (2005), ISBN 1-4165-0015-4
• Voyager: The Mirror-Scaled Serpent in Mirror Universe: Obsidian Alliances (2007), ISBN 0-7434-9253-6
• The Next Generation: Q&A (2007), ISBN 1-4165-2741-9 (nominee, Best Speculative Fiction Novel, Scribe Awards)
• Klingon Empire: A Burning House (2008), ISBN 1-4165-5647-8
• A Gutted World in Myriad Universes: Echoes and Refractions (2008), ISBN 1-4165-7181-7
• A Singular Destiny (2009), ISBN 1-4165-9495-7 (nominee, Best Speculative Fiction Novel, Scribe Awards)

Star Trek novellas, short stories, and comic books

• The Next Generation: Perchance to Dream (four-issue comic book miniseries, art by Peter Pachoumis and Lucian Rizzo, with Scott Benefiel, February-May 2000) -- collected in Enemy Unseen (2001), ISBN 1-56389-765-2, alongside "The Killing Shadows" and "Embrace the Wolf"
• "Horn and Ivory" in What Lay Beyond (2002), ISBN 0-7434-5683-1
• "Broken Oaths" in Deep Space Nine: Prophecy and Change (2003), ISBN 0-7434-7073-7
• "Revelations" in New Frontier: No Limits (2003), ISBN 0-7434-7707-3
• "The Ceremony of Innocence Is Drowned" in Tales of the Dominion War (2004), ISBN 0-7434-9171-8
• "loDnIpu' vavpu' je" ("Brothers and Fathers") in Tales from the Captain's Table (2005), ISBN 1-4165-0520-2
• "Letting Go" in Voyager: Distant Shores (2005), ISBN 0-7434-9253-6
• "Four Lights" in The Next Generation: The Sky's the Limit (2007), ISBN 0-7434-9255-2
• "Family Matters" in Mirror Universe: Shards and Shadows (2009), ISBN 1-4165-5850-0
• Alien Spotlight II: Klingons: Four Thousand Throats... (comic book, art by JK Woodward, 2009; winner, Best Single Issue of a Comic Book, TrekMovie.com)
• "The Unhappy Ones" in Seven Deadly Sins (2010)
• Captain's Log: Jellico (comic book, art by JK Woodward, forthcoming in October 2010)

Star Trek eBooks

• S.C.E. series (2000—2006)
• Fatal Error (2000)
• Cold Fusion (2001)
• Invincible Books 1-2 (w/David Mack, 2001)
• Gateways Epilogue: Here There Be Monsters (2001)
• War Stories Books 1-2 (2002)
• Breakdowns (2003)
• Security (2005)
• What's Past Book 6: Many Splendors (2006)
• The Next Generation: Slings and Arrows Book 6: Enterprises of Great Pitch and Moment (2008)

Other novels

• Spider-Man: Venom's Wrath (written with Jose R. Nieto, 1998), ISBN 0-425-16574-4
• Young Hercules: Cheiron's Warriors (1999), ISBN 0-671-03552-5
• Young Hercules: The Ares Alliance (1999), ISBN 0-671-03554-1
• Farscape: House of Cards (2001), ISBN 0-8125-6162-7
• Andromeda: Destruction of Illusions (2003), ISBN 0-7653-4407-6
• Dragon Precinct (2004), ISBN 0-7434-6770-1, a high fantasy police procedural story and DeCandido's first original novel
• Spider-Man: Down These Mean Streets (2005), ISBN 1-4165-0968-2
• Cycle of Hatred (2006), ISBN 0-7434-7136-9
• Buffy the Vampire Slayer: Blackout (2006), ISBN 1-4169-1917-1
• Nova (2006), ISBN 0-7434-7134-2
• Buffy the Vampire Slayer: The Deathless (2007), ISBN 1-4169-3630-0 (nominee, Best YA Novel, Scribe Awards)
• Tiberium Wars (2007), ISBN 0-3454-9814-3
• Supernatural: Nevermore (2007), ISBN 0-0613-7090-8
• NY: Four Walls (2008), ISBN 1-4165-1343-4
• Supernatural: Bone Key (2008), ISBN 0-0614-3503-1
• Mack Bolan, Executioner: Code of Honor (under Don Pendleton's name, 2009), ISBN 0-3736-4373-X
• Supernatural: Heart of the Dragon (2010) ISBN 1-8485-6600-X
• Mack Bolan, Executioner: Deep Recon (under Don Pendleton's name, 2010)
• untitled Dungeons & Dragons novel (forthcoming in 2011)
• Unicorn Precint (forthcoming in 2011), sequel to Dragon Precinct

Novelizations

• Gargantua (1998), ISBN 0-8125-7098-7 (as K. Robert Andreassi)
• Buffy the Vampire Slayer: The Xander Years Volume 1 (1999), ISBN 0-671-02629-1
• Darkness Falls (2002), ISBN 0-7434-6632-2
• Genesis (2004), ISBN 0-7434-9291-9
• Apocalypse (2004), ISBN 0-7434-9349-4
• Serenity (2005), ISBN 1-4165-0755-8
• Extinction (2007), ISBN 1-4165-4498-4 (nominee, Best Speculative Novel...Adapted, Scribe Awards)

Other comic books

• Farscape: The Beginning of the End of the Beginning (cowritten with Rockne S. O'Bannon, art by Tommy Patterson, four-issue miniseries, December 2008-April 2009)
• Farscape: Strange Detractors (cowritten with O'Bannon, art by Will Sliney, four-issue miniseries, April-July 2009)
• Farscape: D'Argo's Lament (art by Neil Edwards, four-issue miniseries, April-July 2009)
• Farscape: Gone and Back (cowritten with O'Bannon, art by Patterson, July-October 2009)
• Farscape: D'Argo's Trial (art by Caleb Cleveland, August-November 2009)
• Farscape (ongoing monthly series, cowritten with O'Bannon, art by Sliney, November 2009—present)
• Farscape: D'Argo's Quest (art by Cleveland, December 2009-March 2010)
• StarCraft: Ghost Academy Volume 1 (manga, art by Fernando Furukawa, 2010)
• Cars: Adventures of Tow Mater #1-4 (art by Travis Hill, four-issue story arc, August-November 2010)

Short stories

• "An Evening in the Bronx with Venom" in The Ultimate Spider-Man (1994), ISBN 1-57297-103-7, with John Gregory Betancourt
• "Improper Procedure" in The Ultimate Silver Surfer (1995), ISBN 1-57297-299-8
• "God Sins" in The Gathering: Distant Planes (1995), ISBN 0-06-105765-7
• "UNIT We Fall" in Doctor Who: Decalog 3: Consequences (1996), ISBN 0-426-20478-6
• "Arms and the Man" in Untold Tales of Spider-Man (1997), ISBN 1-57297-294-7
• "How You Can Prevent Forest Fires" in Urban Nightmares (1997), ISBN 0-671-87851-4
• "A Bone to Pick" in Did You Say Chicks?! (1997), ISBN 0-671-87867-0, with Marina Frants
• "Playing It SAFE" in The Ultimate Hulk (1998), ISBN 0-425-16513-2
• "Diary of a False Man" in X-Men: Legends (2000), ISBN 0-425-17082-9
• "Raymond's Room" in Doctor Who: Missing Pieces (2001)
• "Recurring Character" in The Further Adventures of Warrior Princess (2001), ISBN 0-441-00852-6
• "Getting the Chair" in Murder by Magic (2004), ISBN 0-446-67962-3, set in the same universe as Dragon Precinct
• "Editorial Interference" in Circles in the Hair (2006)
• "Crime of Passion" in Hear Them Roar (2006), ISBN 0-9773040-1-9, set in the same universe as Dragon Precinct
• "Sunday in the Park with Spot" in Furry Fantastic (2006), ISBN 0-7564-0381-2
• "House Arrest" in Bad-Ass Faeries (2007), set in the same universe as Dragon Precinct
• "Life from Lifelessness" in Doctor Who: Destination Prague (2007)
• "A Clean Getaway" in Pandora's Closet (2007), set in the same universe as Dragon Precinct
• "Meiyo" on the Battlecorps.com web site (2008)
• "Three Sides to Every Story" in BattleTech: 25 Years of Art and Fiction (2009)
• "Fire in the Hole" in Dragon's Lure (2010), set in the same universe as Dragon Precinct
• "Letter from Guadalajara" in More Tales of Zorro (forthcoming in 2010)

Essays and articles

• Buffy the Vampire Slayer: The Watcher's Guide Volume 1 (written with Christopher Golden & Nancy Holder, 1998), ISBN 0-671-02433-7
• "You Set Loose What?: Australia, 1859" in You Did What?: Mad Plans and Great Historical Disasters (2004), ISBN 0-06-053250-5
• "The Red Sox Fan's Guide to Surviving Yankee Stadium" in The Red Sox Fan Handbook (2005), ISBN 1-57940-110-4
• "'The Train Job' Didn't Do the Job" in Finding Serenity (2005), ISBN 1-932100-43-1
• "The Ideas Factory" in Star Trek Magazine (#80, July 2005)
• "'Twas Stupidity Killed the Beast" in King Kong is Back! (2005), ISBN 1-932100-64-4
• "Actor and Superactor" in The Man from Kyrpton (2006), ISBN 1-932100-77-6
• "Pryde of the X-Men" in The Unauthorized X-Men (2006), ISBN 1-932100-74-1
• "The Madness of King George" in Star Wars on Trial (2006), ISBN 1-932100-89-X
• "Superman vs. the Amazing Spider-Man" in Webslinger (2007), ISBN 1-933771-06-2
• "Voyager" in Star Trek Magazine (#133, July/August 2007)
• "Klingon Empire" in Star Trek Magazine (#133, July/August 2007)
• "Corps of Engineers" in Star Trek Magazine (#133, July/August 2007)
• "Introduction" in Assembled!: Five Decades of Earth's Mightiest Heroes (2007), ISBN 0-6151-5444-1
• "Anti-Star Trek?" in Star Trek Magazine (#134, September/October 2007)
• "Embracing the Star Trek Universe" in Star Trek Magazine (#137, March/April 2008)
• "When 42 Isn't the Answer..." in Star Trek Magazine (#138, May/June 2008)
• "Just Following Orders" in Star Trek Magazine (#141, November/December 2008)
• "The Mirror Universe Timeline" in Star Trek Magazine (#142, January/February 2009)
• "Not Just a Pretty Face (or Two)" in In the Hunt: Unauthorized Essays on Supernatural (2009)
• "Avengers Assemble--in the Bookstore!" in Assembled! 2: The Unauthorized Guide to Earth's Mightiest Heroes and Villains (2009)
• "Kang" in Star Trek Magazine (#149, December 2009)
• "The Proud Forehead" in Star Trek Magazine (#151, February 2010)
• "The Team(s) of the Decade" in Maple Street Press Yankees 2010 Annual (March 2010)

Anthology/collection editing

• The Ultimate Dragon (with Byron Preiss and John Betancourt, 1995)
• The Ultimate Alien (with Byron Preiss and John Betancourt, 1995)
• OtherWere: Stories of Transformation (with Laura Anne Gilman, 1996)
• Urban Nightmares (with Josepha Sherman, 1997)
• Virtual Unrealities: The Short Fiction of Alfred Bester (with Byron Preiss & Robert Silverberg, 1997)
• Imaginings: An Anthology of Long Short Fiction (2003)
• New Frontier: No Limits (with Peter David, 2003)
• Star Trek: Tales of the Dominion War (2004)
• Star Trek: Tales from the Captain's Table (2005)
• Doctor Who: The Quality of Leadership (2008)