Opus No. Titlesort ascending Date Setting Publication type I.U.C. Notes
Wet Mars (Larry Niven Talks Terraforming) July, 2000 N/A Non-Fiction non-fiction for Space.com
6 Warriors, The February, 1966 Known Space Short Story K.S. 18 (2360) 1st Man-Kzin War story
128 War Movie July, 1981 Draco Tavern Short Story D.T. 07 Draco Tavern -- the real reason the Chirps came to Earth?
Wanted Fan October, 1991 Stand Alone Filk Filk song set in the fandom world of Fallen Angels  
31 Wait it Out July, 1968 Known Space Short Story K.S. 03 (1989) Harlan Ellison called this a "new wave" story.
56 Unfinished Story #2 June, 1971 Stand Alone Short Story A short short story
46 Unfinished Story December, 1969 Magic Universe: Warlock Short Story W. 02 A Short short story, later renamed "Unfinished Story #1."
Trellis, The November, 2003 Stand Alone Novella Collaboration, co-written with Brenda Cooper
Travelers May, 2000 N/A Non-Fiction non-fiction for Space.com
187 Trantorcon Report October, 1991 The Ghetto Non-Fiction Guide to the ultimate Sci-fi convention in 23,309. A version of this appeared in APA-L #500, Dec. 11, 1974, and later reprinted in a fanzine by Marty Cantor called No Award, with cartoons by William Rotsler and others.
105 Transfer of Power January, 1978 Stand Alone Short Story Set on Lord Dunsany's "Edge of the World"
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.
Timeline for Known Space November, 1996 Known Space: About Non-Fiction Updated from the version that originally appeared in Tales of Known Space
154 Time of the Warlock, The December, 1984 Magic Universe: Warlock Collection Collection Info Collected Warlock stories. Contents: Not Long Before the End What Good is a Glass Dagger? Unfinished Story Notes for Contributors to The Magic May Return Afterword Magic Goes Away, The
Three Books of Known Space November, 1996 Known Space: Collection Collection A Known Space anthology spanning the entire timeline of Niven's future history. The book is made up of World of Ptavvs, A Gift from Earth, and Tales of Known Space, with "Madness Has Its Place" replacing "The Borderland of Sol." Contents: Timeline for Known Space My Universe and Welcome Back! Coldest Place, The Becalmed in Hell Wait it Out Eye of an Octopus How the Heroes Die Jigsaw Man, The World of Ptavvs At the Bottom of a Hole Deceivers, The Cloak of Anarchy Warriors, The Madness Has Its Place Gift from Earth, A There is a Tide Safe at Any Speed Bibliography: The Worlds of Larry Niven Afterthoughts
Thraxisp: A Memoir October, 1991 The Ghetto Non-Fiction Essay on Joel Hagen's world-building project
49 There's a Wolf in My Time Machine June, 1971 Svetz Short Story s. 4 Svetz meets a new pet
30 There is a Tide June, 1968 Known Space Short Story K.S. 34 (2830) First appearance of Louis Wu and his "sabbaticals," as well as Trinocs.
66 Theory and Practice of Time Travel, The April, 1973 N/A Non-Fiction Speculative
130 Theory and Practice of Instant Learning, The October, 1981 N/A Non-Fiction essay

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