Cyborg
William F. Wu
Isaac Asimov's Robot City (3)
The Cyborg and the Sorcerers
Lawrence Watt-Evans
War Surplus (1)
Cyclops
Clive Cussler
Dirk Pitt (8)
The Cylons' Secret
Craig Shaw Gardner
Battlestar Galactica 2 (2)
Daddy's World
Walter Jon Williams
Daemon
Daniel Suarez
Daemon (1)
Daemon World
Ben Counter
Warhammer 40,000 (1)
Damia
Anne McCaffrey
Tower and the Hive (2)
Damnation Alley
Roger Zelazny
Damnation Road Show
Alan Philipson
Deathlands (62)
Damned If You Don't
Randall Garrett
Dance Band on the Titanic
Jack L. Chalker
Dancer's Illusion
Ann Maxwell
Dancer Trilogy (3)
Dancing Bears
Fred Saberhagen
Dancing Vac
Shariann Lewitt
Cyberstealth (2)
The Dangerous Dimension
L. Ron Hubbard
Dangerous Games
Clayton Emery
Forgotten Realms: Netheril Trilogy (2)
The Hub: Dangerous Territory
James H. Schmitz
The Complete Federation of the Hub (4)