Opus No. Title Datesort ascending Setting Publication type I.U.C. Notes
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.
Bibliography: The Worlds of Larry Niven August, 1975 N/A Non-Fiction A broad but incomplete bibliography, helpfully broken out into different categories.
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.
87 ARM January, 1975 Known Space: Gil Hamilton Short Story K.S. 13 (2126) Murder of Raymond Sinclair, inventor of Sinclair Molecule Chain and an inertial-reduction field
80 Borderland of Sol, The January, 1975 Known Space Short Story K.S. 28 (2650) Quantum Black Hole as a murder weapon
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)
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.
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
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
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
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
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.
73 Kind of Murder, A April, 1974 Flash Crowd/Teleportation Short Story Teleportation crime story
72 Bigger Than Worlds March, 1974 N/A Non-Fiction discussion of the Ringworld and other macrostructures. Illustrated by Ames
71 $16,940 February, 1974 Stand Alone Short Story crime, not Science Fiction,  Short blackmail story
70 Hole Man, The January, 1974 Stand Alone Short Story Quantum Black Hole as a murder weapon

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