Novels edit

As listed in Fantastic Fiction ^[4]

• Omha Abides (1968)
• Prisoners of the Sky (1969)
• Secret of the Sunless World (as Carroll M. Capps, 1969)
• Worlds of the Wall (1969)
• Recall Not Earth (1970)
• SUBB (1971)
• Bumsider (1972)

Short stories edit

Published in Galaxy Science Fiction:

• "The Drug" Galaxy, February 1961
• "And All the Earth a Grave" Galaxy, December 1963
• "A Flask of Fine Arcturan" Galaxy, February 1965
• "Sculptor" Galaxy, April 1965
• "The Mercurymen" Galaxy, December 1965
• "Spare That Tree" Galaxy, June 1967

Published in Worlds of If:

• "Prisoners of the Skies", Worlds of If, February 1966
• "The Impersonators", Worlds of If, January 1967
• "When Sea is Born Again", Worlds of If, May 1967
• "A Ticket to Zenner"", Worlds of If, July 1967
• "The Fortunes of Peace", Worlds of If, September 1967
• "Winter of the Llangs", Worlds of If, October 1967
• "Mail Drop", Worlds of If, November 1967
• "Where the Subbs Go", Worlds of If, May 1968
• "The Hides of Marrech", Worlds of If, July 1968
• "Dream Street", Worlds of If, September 1968
• "Mad Ship", Worlds of If, May 1969

Gree series edit

This space opera series ran in Worlds of If alongside Fred Saberhagen's Berserker series and Keith Laumer's tales of Retief, the galactic diplomat.

• "The Slavers of Gree", Worlds of If, August 1964
• "Gree's Commandos", Worlds of If, February 1965
• "Gree's Hellcats", Worlds of If, April 1965
• "No Friend of Gree", Worlds of If, June 1965
• "Gree's Damned Ones", Worlds of If, September 1965
• "Enemies of Gree", Worlds of If, September 1966
• "The Sign of Gree", Worlds of If, November 1966
• "A Beachhead for Gree", Worlds of If, February 1967

His novella The Mercurymen was a finalist for the 1965 Nebula Award for Best Novella.

• Works by C. C. MacApp at Project Gutenberg
• Works by or about C. C. MacApp at Internet Archive
• Works by C. C. MacApp at LibriVox (public domain audiobooks)  
• C. C. MacApp at the Internet Speculative Fiction Database