* Robotkrigen (1969)
* Starforce:Bog 1 af The Faded Sun Trilogy (1980)
* The Lost Legion (1990)
* The Siege of Earth (1993)
* Ambolt of Stars (1995)
* Crucible of Light (1997)
* The Burning (1998)
* The Crucible (2001)
* Beyond the Stars (2003)
* Inherit the Stars (2005)
* The Star Conquerors (2007)
* The Galaxy Unleashed (2009)
* Den Store Krig (2011)
* Den endelige sejr (2013)
Noveller:
* "Og døden skal komme" (1969)
* "De overlevende" (1969)
* "Lensens børn" (1970)
* "Den dag himlen ændrede sig" (1970)
* "Det sidste rumskib" (1971)
* "Tidsrejsende" (1971)
* "Dødsskibet" (1972)
* "The Mind War" (1972)
* "The Alien Artefact" (1973)
* "The Crystal Warriors" (1973)
* "The Galactic Menace" (1974)
* "The Robot Rebellion" (1974)
* "Tidsfælden" (1975)
* "The Cosmic Crucible" (1975)
* "Verdens ende" (1976)
Samlinger:
* Det sidste rumskib og andre historier (1976)
* The Robot Rebellion and Other Stories (1977)
* The Cosmic Crucible and Other Stories (1978)
* Verdens ende og andre historier (1979)