Dray Prescot series (written as Alan Burt Akers and Dray Prescot)

Consists of eleven cycles (the last is unfinished), four stand-alone novels, and three stand-alone short stories as noted below. The first thirty-seven volumes were published by DAW Books from December 1972 – April 1988; print editions of the later volumes were initially published solely in German translation by Wilhelm Heyne Verlag from 1991–1998. English language ebooks of volumes 38–41 were later issued by the now-defunct electronic publisher Savanti from September 1995 – December 1998; ebooks of volumes 1–52 have since been issued by another electronic publisher, Mushroom eBooks. Publication was interrupted for close to six years between volumes 45 and 46 due to family illness and difficulty in locating the manuscripts.^[1] As of 5 February 2014 it was reported that all the missing manuscripts had been found except that for Demons of Antares (Book 46), which was being translated back into English from the German version, a process then "almost finished."^[2] Publication of the volume followed in June 2014, with the remaining volumes appearing at intervals during the remainder of the year. Volume 52 was published in November 2014. Bladud Books, a sister imprint of Mushroom eBooks, has published collected omnibus editions of all volumes in hardcover, paperback and ebook formats.^[3]

Ryder Hook series (written as Tully Zetford)

The last six books in the series were published only in German, under Bulmer's real name. The first four books have also been published under his real name, collected in a single volume.

• Whirlpool of Stars (1974)
• The Boosted Man (1974)
• Star City (1974)
• The Virility Gene (1975)
  The Nova Man (Der Nova-Mann, 1987, Collection of the first four books)
• The Gervase Factor (Mission Galaxis, 1988)
• The Lost Fleet (Der Weltraum-Friedhof, 1988)
• Star Strike (Rebell der Sterne, 1988)
• Lure of the Novamen (Weltraum-Piraten, 1988)
• Citadel of Doom (Gefangen im All, 1988)
• Secret of the Novamen (Vermächtnis der Zukunft, 1988)

Keys to the Dimensions series

• The Key to Irunium (1967)
• The Key to Venudine (1968)
• The Wizards of Senchuria (1969)
• The Ships of Durostorum (1970)
• The Hunters of Jundagai (1971)
• The Chariots of Ra (1972)
• The Diamond Contessa (1983)

Odan the Half-God series (written as Manning Norvil)

• Dream Chariots (1977)
• Whetted Bronze (1978)
• Crown of the Sword God (1980)

Other science fiction novels

• Space Treason (1952) with A. V. Clarke
• Cybernetic Controller (1952) with A. V. Clarke
• Encounter in Space (1952)
• Zhorani (Master of the Universe) (1953) (as Karl Maras)
• Empire of Chaos (1953)
• Galactic Intrigue (1953)
• Space Salvage (1953)
• The Stars are Ours (1953)
• Mission to the Stars (1953) (as Philip Kent)
• Vassals of Venus (1953) (as Philip Kent)
• Challenge (1954)
• World Aflame (1954)
• Home Is the Martian (1954) (as Philip Kent)
• Slaves of the Spectrum (1954) (as Philip Kent)
• Peril from Space (1954) (as Karl Maras)
• City Under the Sea (1957)
• The Secret of ZI (1958) (a.k.a. The Patient Dark (1969))
• The Changeling Worlds (1959)
• The Earth Gods are Coming (1960) (a.k.a. Of Earth Foretold (1961))
• Defiance (1960)
• Beyond the Silver Sky (1961)
• Land Beyond the Map (1961)
• No Man's World (1961) (a.k.a. Earth's Long Shadow (exp 1962))
• The Fatal Fire (1962)
• The Wind of Liberty (1962)
• The Wizard of Starship Poseidon (1963)
• Demons' World (Ace Books, 1964) (later published as The Demons (Compact Books, 1965))^[4]
• The Million Year Hunt (1964)
• Behold the Stars (1965)
• Worlds for the Taking (1966)
• The Adjusted (1966)
• To Outrun Doomsday (1967)
• Cycle of Nemesis (1967)
• The Doomsday Men (1968)
• The Ulcer Culture (1969) (a.k.a. Stained-Glass World (1976))
• Kandar (1969)
• The Star Venturers (1969)
• Quench the Burning Stars (1970) (a.k.a. Blazon (expanded 1970))
• Star Trove (1970)
• Swords of the Barbarians (1970)
• The Electric Sword-Swallowers (1971)
• The Insane City (1971)
• On the Symb-Socket Circuit (1972)
• Roller Coaster World (1972)

The Vikings series (as Neil Langholm)

• 1. Blood Sacrifice (1975)
• 2. The Dark Return (1975)
• 3. Blood on the Sun / The Sun in the Night (1975)
• 4. Trail of Blood (1976)

Wolf's Head series (as Arthur Frazier)

• 1. Oath of Blood (1973)
• 2. The King's Death (1973)
• 3. A Light in the West (1973)
• 4. Viking Slaughter (1974)
• 5. A Flame in the Fens (1974)
• 6. An Axe in Miklagard (1975)

The Eagles – Gladiator series (as Andrew Quiller)

• 1. The Hill of the Dead (1976)
• 2. The Land of Mist (1976)
• 3. City of Fire (1976)
• 4. Blood on the Sand (1976)
• 5. Sea of Swords (1976)

Captain Shark series (as Richard Silver)

• 1. By Pirate's Blood (1975)
• 2. Jaws of Death (1975)

Fox series (as Adam Hardy)

• The Press Gang (1973)
• Prize Money (1973)
• The Siege (1973) (a.k.a. Savage Siege)
• Treasure (1973) (a.k.a. Treasure Map (1974))
• Powder Monkey (1973) (a.k.a. Sailor's Blood (1974))
• Blood for Breakfast (1974) (a.k.a. Sea of Gold)
• Court Martial (1974)
• Battle Smoke (1974)
• Cut and Thrust (1974)
• Boarders Away (1975)
• Fireship (1975)
• Blood Beach (1975)
• Sea Flame (1976)
• Close Quarters (1977)

Sea Wolf series (as Bruno Krauss)

• 1. Steel Shark (1978)
• 2. Shark North (1978)
• 3. Shark Pack (1978)
• 4. Shark Hunt (1980)
• 5. Shark Africa (1980)
• 6. Shark Raid (1982)
• 7. Shark America (1982)
• 8. Shark Trap (1982)

Jubal Cade series (as Charles R. Pike)

• 11. Brand of Revenge (1978) (a.k.a. Brand of Vengeance (1980))

Casca series (as Barry Sadler [house name])

• 4. Panzer Soldier (1980)
• 22. The Mongol (1990)

Strike Force: Falklands series (as Adam Hardy)

• 1. Operation Exocet (1984)
• 2. Raider's Dawn (1984)
• 3. Red Alert (1984)
• 4. Recce Patrol (1985)
• 5. Covert Op (1985)
• 6. 'Ware Mines (1985)

The Professionals series (as Ken Blake)

• 1. Where the Jungle Ends (1978)*
• 2. Long Shot (1978)*
• 3. Stake Out (1978)*
• 4. Hunter Hunted (1978)*
• 5. Blind Run (1979)*
• 6. Fall Girl (1979)*
• 7. Hiding to Nothing (1980)
• 8. Dead Reckoning (1980)
• 9. No Stone (1980)
• 11. Spy Probe (1981)
• 12. Foxhole (1981)
• 13. The Untouchables (1982)
• 14. Operation Susie (1982)
• 15. You'll Be All Right (1982)*

Asterisked titles also published in hardback under Bulmer's own name