Opus No.sort descending Title Date Setting Publication type I.U.C. Notes
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
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
80 Borderland of Sol, The January, 1975 Known Space Short Story K.S. 28 (2650) Quantum Black Hole as a murder weapon
81 Singularities Make Me Nervous September, 1974 Stand Alone Short Story time travel paradox
82 Inferno August, 1975 Inferno Novel Collaboration, co-written with Jerry Pournelle.  Retelling of Dante's Inferno.
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.
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.
86 My Universe and Welcome To It! October, 1971 Introduction Introduction to Known Space.
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
88 Long Arm of Gil Hamilton, The February, 1976 Known Space: Gil Hamilton Collection Collection info First collection of Gil Hamilton stories. Contents: Organleggers, The Defenseless Dead, The ARM Afterword: The Last Word about SF Detectives
89 Afterword: The Last Word about SF Detectives February, 1976 Known Space: Gil Hamilton Non-Fiction Niven speaks candidly about his early attempts to write his "Gil Hamilton" Sci-fi/crime stores, and about some of the predictions that have and haven't come true.
90 Down in Flames January, 1969 Known Space Non-Fiction Read It Here! Destruction of Known Space, inspired by a conversation with Norman Spinrad. Never written beyond the outline phase.  Niven started writing Ringworld shortly after instead. Though this saw print in 1969, it appears much further down the list in Niven's published bibliographies.
91 Building the Mote in God's Eye January, 1976 Motie Non-Fiction Collaboration, co-written with Jerry Pournelle
92 Down and Out February, 1976 The State Short Story Included in the novel World Out Of Time, A  
93 Mistake January, 1976 Stand Alone Short Story In space, no one can hear you take a pill
94 Magic Goes Away, The January, 1976 Magic Universe: Warlock Short Story expanded into an illustrated novella, 1978.

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