Opus No. Title Date Setting Publication type I.U.C.sort descending Notes
70 Hole Man, The January, 1974 Stand Alone Short Story Quantum Black Hole as a murder weapon
71 $16,940 February, 1974 Stand Alone Short Story crime, not Science Fiction,  Short blackmail story
72 Bigger Than Worlds March, 1974 N/A Non-Fiction discussion of the Ringworld and other macrostructures. Illustrated by Ames
73 Kind of Murder, A April, 1974 Flash Crowd/Teleportation Short Story Teleportation crime story
74 Hole in Space, A August, 1974 N/A Collection Contents: $16,940 Alibi Machine, The All the Bridges Rusting Bigger Than Worlds Fourth Profession, The Hole Man, The Kind of Murder, A Last Days of the Permanent Floating Riot Club, The Rammer There is a Tide
75 Last Days of the Permanent Floating Riot Club, The June, 1974 Flash Crowd/Teleportation Short Story The final story in Niven's teleportation/crime cycle shows Jerryberry's "Riot Control" concept in action.
76 Plaything August, 1974 Stand Alone Short Story Alien adolescents encounter a probe from Earth
77 Night on Mispec Moor August, 1974 Léshy Short Story Sci-fi sword-and-sorcery horror story
81 Singularities Make Me Nervous September, 1974 Stand Alone Short Story time travel paradox
Land of the Lost: "Downstream" September, 1974 Land of the Lost Script Collaboration, co-written with David Gerrold, airdate September 28, 1974
78 Mote in God's Eye, The October, 1974 Motie Novel Collaboration, co-written with Jerry Pournelle, set in Pournelle's Codominium universe. See the sequel, Gripping Hand, The
79 Nonesuch, The December, 1974 Stand Alone Short Story retake on Little Red Riding Hood
Land of the Lost: "Hurricane" December, 1974 Land of the Lost Script Collaboration, co-written with David Gerrold, airdate December 21, 1974
Land of the Lost: "Circle" December, 1974 Land of the Lost Script Collaboration, co-written with David Gerrold, airdate December 28, 1974.
138 De Stranden Van Serius Vier January, 1975 N/A Collection Dutch, collected Niven stories from various sources. Contents: De Schaduwzijde (One Face) De Stranden van Sirius Vier (Bordered in Black) Vechtjassen (The Warriors) Veilig bij Elke Snelheid (Safe at Any Speed) Buik als Eigen Baas (The Long Night) De Bemoeial (The Meddler) Al het Mogelijke (All the Myriad Ways) Niet Lang voor het Eind (Not Long Before the End) Het Vierde Beroep (The Fourth Profession) Stuwer (Rammer) Er Zit een Wolf in Mijn Tijdmachine (There's a Wolf in My Time Machine) Wat Heb Je aan een Glazen Dolk? (What Good Is a Glass Dagger?) De Dood in de Kooi (Death in a Cage) Het Gat van Lear (The Hole Man)
83 Galaxy Stars: Jerry Pournelle July, 1975 Non-Fiction: The Ghetto Non-Fiction Bio of Jerry Pournelle, with whom Niven had recently published The Mote in God's Eye and Inferno and was hard at work on Lucifer's Hammer.
82 Inferno August, 1975 Inferno Novel Collaboration, co-written with Jerry Pournelle.  Retelling of Dante's Inferno.
84 Tales of Known Space August, 1975 Known Space: Collection Collection Collection info Overview of Known Space. Contents: "About the Cover" by Rick Sternbach Timeline for Known Space My Universe and Welcome To It! Coldest Place, The Becalmed in Hell Wait it Out Eye of an Octopus How the Heroes Die Jigsaw Man, The At the Bottom of a Hole Deceivers, The Cloak of Anarchy Warriors, The Borderland of Sol, The There is a Tide Safe at Any Speed Afterthoughts Bibliography: The Worlds of Larry Niven  
85 Afterthoughts August, 1975 Known Space: About Non-Fiction "parting thoughts" on Known Space, as if. Shares an "Opus number" with "Timeline for Known Space" in Niven's published bibliographies.
85 Timeline for Known Space August, 1975 Known Space: About Non-Fiction Like the title says. Shares an "Opus number" with "Afterthoughts" in Niven's published bibliographies.

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