Harry Turtledove collaborated on two novels and five story collections set in the CoDominium Universe. The five collections are:

War World, Volume I: The Burning Eye (1988)

War World, Volume II: Death's Head Rebellion (1990)

War World, Volume III: Sauron Dominion (1991)

War World, Volume IV: Invasion (1994)

CoDominium: Revolt on War World (1992)

The novels, co-written with Susan Shwartz, S.M. Stirling, and Judith Tarr are:

Blood Feuds: A Novel of War World (1992)

Blood Vengeance: A Novel of War World (1994)