Eric Flint

Belisarius (with David Drake)
   1. An Oblique Approach (1998)
   2. In the Heart of Darkness (1998)
   3. Destiny's Shield (1999)
   4. Fortune's Stroke (2000)
   5. The Tide of Victory (2001)
   6. The Dance of Time (2006)

Rats, Bats and Vats (with Dave Freer)
   1. Rats, Bats and Vats (2000)
   2. The Rats, the Bats and the Ugly (2004)
   2.5. Crawlspace (2011)
   Crawlspace and Other Stories (2011)
   2.75. The Genie Out of the Vat (2011)

Joe's World
   1. The Philosophical Strangler (2001)
   2. Forward the Mage (2002) (with Richard Roach)

Pyramid (with Dave Freer)
   1. Pyramid Scheme (2001)
   2. Pyramid Power (2007)

General (Raj Whitehall)
   8. The Tyrant (2002) (with David Drake)

Heirs of Alexandria
   1. The Shadow of the Lion (2002) (with Dave Freer and Mercedes Lackey)
   2. This Rough Magic (2003) (with Dave Freer and Mercedes Lackey)
   3. Much Fall of Blood (2010) (with Dave Freer and Mercedes Lackey)
   4. Burdens of the Dead (2013) (with Dave Freer and Mercedes Lackey)
   5. All the Plagues of Hell (2018) (with Dave Freer)

Crown of Slaves (with David Weber)
   1. Crown of Slaves (2003)
   2. Torch of Freedom (2009)
   3. Cauldron of Ghosts (2014)
   4. To End in Fire (2021)

Jao
   1. The Course of Empire (2003) (with K D Wentworth)
   2. The Crucible of Empire (2010) (with K D Wentworth)
   3. The Span of Empire (2016) (with David Carrico)

Trail of Glory
   1. 1812: The Rivers of War (2005)
   2. 1824: The Arkansas War (2006)

Boundary (with Ryk E Spoor)
   1. Boundary (2006)
   2. Threshold (2010)
   3. Portal (2013)
   4. Castaway Planet (2015)
   5. Castaway Odyssey (2016)
   6. Castaway Resolution (2020)

Belisarius Omnibus (with David Drake)
   1. Thunder at Dawn (2008)
   2. Storm at Noontide (2009)
   3. The Flames of Sunset (2009)

Queen of the Sea (with Paula Goodlett and Gorg Huff)
   1. The Alexander Inheritance (2017)
   2. The Macedonian Hazard (2021)

Demon Rift (with Paula Goodlett and Gorg Huff)
   1. The Demons of Paris (2018)
   2. The Demons of Constantinople (2020)

   Mother of Demons (1997)
   A Slow Train to Arcturus (2008) (with Dave Freer)
   Gods of Sagittarius (2017) (with Mike Resnick)
   Iron Angels (2017) (with Alistair Kimble)
   Venus, Mars and Hell (2019) (with John Lambshead)
   Diamonds Are Forever (2020) (with Ryk E Spoor)
   Fenrir (2025) (with Ryk E Spoor)

   Odyssey (2002) (with Keith Laumer)
   The Warmasters (2002) (with David Drake and David Weber)
   Mountain Magic (2004) (with others)
   Worlds (2009)
   Worlds 2 (2018)

   Pirates of the Suara Sea (2011) (with Dave Freer)
   Red Fiddler (2011) (with Dave Freer)
   The Witch's Murder (2011) (with Dave Freer)

   The World Turned Upside Down (2005) (with Jim Baen and David Drake)
   The Best of Jim Baen's Universe (2007)
   The Dragon Done It (2008) (with Mike Resnick)
   The Best of Jim Baen's Universe II (2008) (with Mike Resnick)
   When Diplomacy Fails (2008) (with Mike Resnick)

Ring of Fire
   1. 1632 (2000)
   2. 1633 (2002) (with David Weber)
   3. 1634: The Galileo Affair (2004) (with Andrew Dennis)
   4. 1634: The RAM Rebellion (2006) (with Virginia DeMarce)
   5. 1634: The Baltic War (2007) (with David Weber)
   6. 1634: The Bavarian Crisis (2007) (with Virginia DeMarce)
   7. 1635: Cannon Law (2006) (with Andrew Dennis)
   8. 1635: The Dreeson Incident (2008) (with Virginia DeMarce)
   9. 1635: The Tangled Web (2009) (with Virginia DeMarce)
   10. 1635: The Papal Stakes (2012) (with Charles E Gannon)
   11. 1635: The Eastern Front (2010)
   12. 1636: The Saxon Uprising (2011)
   13. 1636: The Kremlin Games (2012) (with Paula Goodlett and Gorg Huff)
   14. 1636: The Devil's Opera (2013) (with David Carrico)
   15. 1636: Commander Cantrell in the West Indies (2014) (with Charles E Gannon)
   16. 1636: The Viennese Waltz (2014) (with Paula Goodlett and Gorg Huff)
   17. 1635: A Parcel of Rogues (2015) (with Andrew Dennis)
   19. 1636: The Cardinal Virtues (2015) (with Walter H Hunt)
   21. 1636: The Ottoman Onslaught (2016)
   22. 1636: Mission to the Mughals (2017) (with Griffin Barber)
   24. 1636: The Vatican Sanction (2017) (with Charles E Gannon)
   25. 1637: The Volga Rules (2017) (with Paula Goodlett and Gorg Huff)
   26. 1637: The Polish Maelstrom (2019)
   27. 1636: The China Venture (2019) (with Iver Cooper)
   28. 1636: The Atlantic Encounter (2020) (with Walter H Hunt)
   29. 1637: No Peace Beyond the Line (2020) (with Charles E Gannon)
   31. 1637: The Peacock Throne (2021) (with Griffin Barber)
   32. Grantville Gazette IX, 32 (2021) (with Walt Boyes and Joy Ward)
   34. 1637: The Coast of Chaos (2021) (with Paula Goodlett and Gorg Huff)
   35. 1637: The Transylvanian Decision (2022) (with Robert Waters)
   36. 1638: The Sovereign States (2023) (with Paula Goodlett and Gorg Huff)
   37. 1635: The Weaver's Code (2024) (with Jody Lynn Nye)
   38. 1637: The French Correction (2025) (with Walter H Hunt)

Ranks of Bronze
   2. Foreign Legions (2001) (with David Drake and David Weber)

Ring of Fire anthologies
   1. Ring of Fire (2003)
   2. Ring of Fire II (2008)
   3. Ring of Fire III (2011)
   4. Ring of Fire IV (2016)
   Medicine and Disease after the Ring of Fire (2018)

Witches of Karres
   2. The Wizard of Karres (2004) (with Dave Freer and Mercedes Lackey)
   3. The Sorceress of Karres (2010) (with Dave Freer)
   4. The Shaman of Karres (2020) (with Dave Freer)

Ring of Fire - Assiti Shards
   1. Time Spike (2008) (with Marilyn Kosmatka)
   2. The Alexander Inheritance (2017) (with Paula Goodlett and Gorg Huff)
   3. The Macedonian Hazard (2021) (with Paula Goodlett and Gorg Huff)
   5. An Angel Called Peterbilt (2024) (with Paula Goodlett and Gorg Huff)

Stellar Guild
   The Aethers of Mars (2014) (with Charles E Gannon)

Clan of the Claw
   2. By Tooth and Claw (2015) (with others)

Arcane America
   2. Council of Fire (2019) (with Walter H Hunt)