Opus No. Titlesort descending Date Setting Publication type I.U.C. Notes
Ringworld Retrospective April, 1989 N/A Non-Fiction Like the title says. A look back at the impact of Ringworld.
Ringworld Throne, The June, 1996 Known Space: Ringworld Novel K.S. 37 (2882-93) Louis encounters more Pak Protectors 2nd sequel to Ringworld
Ringworld's Children June, 2004 Known Space: Ringworld Novel K.S. 38 (2893) 3rd Sequel to Ringworld  
Robert Bussard December, 2007 N/A Essay
Rocket Men June, 2000 N/A Non-Fiction non-fiction for Space.com
125 Roentgen Standard, The July, 1980 N/A Non-Fiction Read It Here! Printed in Limits as "Yet Another Modest Proposal." Niven's published bibliographies list it as October 1981, but Carol's research indicates it appeared in July 1980
102 Rotating Cylinders and the Possibility of Global Causality Violation August, 1977 Time Travel/Parallel Universe Short Story Title stolen from a mathematics paper by Frank J. Tipler
20 Safe at Any Speed May, 1967 Known Space Short Story K.S. 40 (3101) The "Last" Known Space story
Safe Harbor August, 2010 Draco Tavern Short Story Rick Schumann talks to some alien pirates who have a very good reason to want to steal a Chirpsithra liner.
Saturn's Race July, 2000 Saturn Novel Collaboration, co-written with Steven Barnes prequel to Achilles' Choice
Scatterbrain January, 2003 N/A Non-Fiction essay on the ISS
Scatterbrain January, 2003 N/A Collection Collection Info Niven's career from 1990 to 2003. Contents: Excerpt from Destiny's Road Excerpt from The Ringworld Throne Excerpt from The Burning City with Jerry Pournelle Excerpt from Saturn's Race with Steven Barnes Introduction: Where Do I Get My Crazy Ideas? Woman in Del Rey Crater, The Loki Procrustes How to Save Civilization and Make a Little Money Ice and Mirrors Ice and Mirrors Papers, The Smut Talk Telepresence Learning to Love the Space Station Autograph Ettiquette Tabletop Fusion Collaborations Intercon Trip Report: August 12, 1991 Handicap Did the Moon Move for You Too? Hugo Award Anecdotes Introduction to Man-Kzin Wars II Canon for the Man-Kzin Wars Epilogue: What I Tell Librarians Mars: Who Needs It? Introduction to Peter Hamilton story
109 Schumann Computer, The January, 1979 Draco Tavern Short Story D.T. 04 Draco Tavern discussion of artificial intelligence
Seascape Tattoo, The June, 2016 Magic Universe Novel Niven and Barnes return to the universe of "The Magic Goes Away" with a brand-new tale that pits a barbarian and a sorcerer against a dangerous society of wizards who seek to rule the world with weapons stolen from the future!
Second Thoughts June, 1985 N/A Non-Fiction Follow-up notes by various participants in the Medea: Harlan's World world-building seminar. Other contributors include Poul Anderson, Hal Clement, Thomas M. Disch & Frederik Pohl
Secret of Black Ship Island, The April, 2012 Avalon Novella "Larry Niven and Steve Barnes came over just after my morning walk and we had a conference on a notion for a new book in the Avalon (Beowulf's Children) series. We used Skype to call Dr. Jack Cohen who has agreed to help us construct a new ecological creature to be part of a short novel involving some of the characters from Beowulf's Children." - Jerry Pournelle, 2/14/2011
110 Shall We Indulge in Rishathra? March, 1979 N/A Non-Fiction With cartoons by William Rotsler. "Rishathra" is a Ringworld ritual.
40 Shape of Space, The January, 1969 N/A Collection Early Niven Collection, later combined into Convergent Series. Contents: At the Bottom of a Hole Bordered in Black Deadlier Weapon, The Dry Run How the Heroes Die Like Banquo's Ghost Long Night, The Meddler, The One Face Organleggers, The Safe at Any Speed Warriors, The
Shipstar April, 2014 Stand Alone Novel Collaboration with Gregory Benford. The crew of SunSeeker continue their exploration of the giant, bowl-shaped ship bound towards their destination, the colony world called Glory. The sequel to Bowl of Heaven
Sideways in Time, an introduction to Ward Moore's Bring the Jubilee May, 1988 N/A Introduction An essay about alternate history stories, published as an introduction to Bring the Jubilee, by Ward Moore, for a "Masterpieces of Science Fiction" limited-edition leatherbound reprint of the 1955 classic, featuring art by A.C. Farley.

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