Criteria: It is with respect to all the myriad forms & interpretations of science fiction that these books were chosen for their lasting impact, influence in the genre, originality & compositional skill. As with all lists, this is a subjective list & makes no claim of an official nature.
*** With a significant percent of science fiction books presented as a multiple book series, to include would be to exclude, so for the purpose of this list the series title has been chosen to be represented here ***
List Compiled and Edited By: Rick Varner
Last Updated: 2017-07-24
https://digitaldreamdoor.com/pages/book ... books.html
Robert A Heinlein
1. Stranger in a Strange Land - by Robert A Heinlein
2. Dune - by Frank Herbert
3. Foundation - by Isaac Asimov
4. Fahrenheit 451 - by Ray Bradbury
5. The Book of the New Sun - by Gene Wolfe
6. 1984 - by George Orwell
7. Brave New World - by Aldous Huxley
8. Earth Abides - by George R Stewart
9. The Book of the Long Sun - by Gene Wolfe
10. Childhood's End - by Arthur C Clarke
11. The Dispossessed - by Ursula K. LeGuin
12. The Demolished Man - by Alfred Bester
13. Flatland - by Edwin A Abbott
14. The Moon Is A Harsh Mistress - by Robert A Heinlein
15. The Left Hand of Darkness - by Ursula K. LeGuin
16. Frankenstein - by Mary Shelley
17. Slaughterhouse-Five - by Kurt Vonnegut
18. Ender's Game - by Orson Scott Card
19. I Am Legend - by Richard Matheson
20. The Time Machine - by H.G. Wells
21. All My Sins Remembered - by Joe Haldeman
22. The War of the Worlds - by H.G. Wells
23. Cat's Cradle - by Kurt Vonnegut
24. The City and The Stars - by Arthur C Clarke
25. Do Androids Dream of Electric Sheep? - by Philip K Dick
26. The Hitchhiker's Guide to the Galaxy - by Douglas Adams
27. Planet of Adventure - by Jack Vance
28. More Than Human - by Theodore Sturgeon
29. A Clockwork Orange - by Anthony Burgess
30. Hyperion Cantos - by Dan Simmons
31. Neuromancer - by William Gibson
32. The Three Stigmata of Palmer Eldritch - by Philip K Dick
33. Gateway - by Fredrick Pohl
34. Rendezvous with Rama - by Arthur C. Clarke
35. Ring Around The Sun - by Clifford D Simak
36. The Sirens of Titan - by Kurt Vonnegut
37. Cities In Flight - by James Blish
38. Gravity's Rainbow - by Thomas Pynchon
39. The Man in The High Castle - by Philip K Dick
40. Limbo - by Bernard Wolfe
41. The Invisible Man - by H.G. Wells
42. The Fifth Head of Cerebus - by Gene Wolfe
43. The Puppet Masters - by Robert A Heinlein
44. Last and First Men - by Olaf Stapledon
45. Alastor - by Jack Vance
46. A Wrinkle in Time - by Madeleine L'Engle
47. The Embedding - by Ian Watson
48. Island - by Aldous Huxley
49. The Forever War - by Joe Haldeman
50. Ubik - by Philip K. Dick
51. On Wings of Song - by Thomas M Disch
52. Starship Troopers - by Robert A Heinlein
53. At The Mountains of Madness - by H.P. Lovecraft
54. Flowers for Algernon - by Daniel Keyes
55. The Sheep Look Up - by John Brunner
56. Ringworld - by Larry Niven
57. The Paradox Men - by Charles Harness
58. The Drowned World - by J.G. Ballard
59. The Stars My Destination - by Alfred Bester
60. Tau Zero - by Poul Anderson
61. Farmer in the Sky - by Robert A Heinlein
62. Out of The Silent Planet - by C.S. Lewis
63. The Stainless Steel Rat - by Harry Harrison
64. Solaris - by Stanislaw Lem
65. The Gods Themselves - by Isaac Asimov
66. A Canticle for Leibowitz - by Walter Miller
67. Bring The Jubilee - by Ward Moore
68. Flow My Tears The Policeman Said - by Philip K. Dick
69. The Soft Machine - by William S Burroughs
70. The Space Merchants - by Frederik Pohl & C.M. Kornbluth
71. We - by Yevgeni Zamyatin
72. The Centauri Device - by M John Harrison
73. The Cadwal Chronicles - by Jack Vance
74. Citizen of The Galaxy - by Robert A Heinlein
75. His Master's Voice - by Stanislaw Lem
76. A Mirror For Observers - by Edgar Pangborn
77. Time Out of Joint - by Philip K Dick
78. The High Crusade - by Poul Anderson
79. The Book of The Short Sun - by Gene Wolfe
80. The Day of the Triffids - by John Wyndham
81. Way Station - by Clifford D Simek
82. To Your Scattered Bodies Go - by Philip Jose Farmer
83. A Scanner Darkly - by Philip K. Dick
84. Non-Stop - by Brian W Aldiss
85. A Deepness In The Sky - by Vernon Vinge
86. Man Plus - by Fredrick Pohl
87. Speaker for the Dead - by Orson Scott Card
88. The Midwich Cuckoos - by John Wyndham
89. Camp Concentration - by Thomas Disch
90. The Demon Princes - by Jack Vance
91. The Inheritors - by William Golding
92. The Word For World Is Forest - by Ursula K. LeGuin
93. An Evil Guest - by Gene Wolfe
94. Dorsai - by Gordon R Dickson
95. The Andromeda Strain - by Michael Crichton
96. Mission of Gravity - by Hal Clement
97. The Mote in God's Eye - by Larry Niven and Jerry Pournelle
98. Lord of Light - by Roger Zelazny
99. Ape and Essence - by Aldous Huxley
100. Against The Fall of Night - by Arthur C Clarke
101. Bug Jack Barron - by Norman Spinrad
102. A Case of Conscience - by James Blish
103. Triplanetary - by E.E. 'Doc' Smith
104. The Fountains of Paradise - by Arthur C Clarke
105. The Caves of Steel - by Isaac Asimov
106. Mona Lisa Overdrive - by William Gibson
107. Nightwings - by Robert Silverberg
108. This Immortal - by Roger Zelzany
109. The Lathe of Heaven - by Ursula Le Guin
110. Hothouse - by Brian Aldiss
111. The Forever Machine - by Frank Riley & Mark Clifton
112. Nostrilia - by Cordwainer Smith
113. Riverworld - by Philip Jose Farmer
114. Player Piano - by Kurt Vonnegut
115. The Diamond Age - by Neal Stephenson
116. The Integral Trees - by Larry Niven
117. Free Live Free - by Gene Wolfe
118. Past Master - by R.A. Lafferty
119. Count Zero - by William Gibson
120. True Names - by Vernor Vinge
121. Make Room! Make Room! - by Harry Harrison
122. The Baroque Cycle - by Neal Stephenson
123. Rainbow's End - by Vernor Vinge
124. Futurological Congress - by Stanislaw Lem
125. A Fire Upon The Deep - by Vernor Vinge
126. The Big Time - by Fritz Leiber
127. Immortality Inc. - by Robert Sheckley
128. Job: A Comedy of Justice - by Robert A Heinlein
129. Stand On Zanzibar - by John Brunner
130. To Say Nothing of The Dog - by Connie Willis
131. China Mountain Zhang - by Maureen F. McHugh
132. Up The Line - by Robert Silverberg
133. Chthon - by Piers Anthony
134. The Listeners - by James E Gunn
135. Titan - by John Varley
136. Alas, Babylon - by Pat Frank
137. The Unreasoning Mask - by Philip Jose Farmer
138. Rogue Moon - by Algis Budrys
139. Drowning Towers - by George Turner
140. Cryptonomicon - by Neal Stephenson
141. The Stochastic Man - by Robert Silverberg
142. Forever Peace - by Joe Haldeman
143. Beyond Apollo - by Barry Malzberg
144. Inverted World - by Christopher Priest
145. Thorns - by Robert Silverberg
146. The Snow Queen - by Joan D Vinge
147. Roadside Picnic - by Arkady & Boris Strugatsky
148. The Cat Who Walks Through Walls - by Robert A Heinlein
149. The Uplift War - by David Brin
150. 2001 A Space Odyssey - by Arthur C Clarke
151. Sphere - by Michael Crichton
152. Dying Inside - by Robert Silverberg
153. Babel-17 - by Samuel R Delany
154. Beggars in Spain - by Nancy Kress
155. Wildlife - by James Patrick Kelly
156. Snow Crash -by Neal Stephenson
157. The Death of Grass - by John Christopher
158. Ilium - by Dan Simmons
159. The Many Colored Land - by Julian May
160. Altered Carbon - by Richard K. Morgan
161. Green Mars - by Kim Stanley Robinson
162. The Terminal Experiment - by Robert J Sawyer
163. The Einstein Intersection - by Samuel R Delany
164. Spin - by Robert Charles Wilson
165. Griffin's Egg - by Michael Swanwick
166. Rite of Passage - by Alexei Panshin
167. Barrayar - by Lois McMaster Bujold
168. Anathem - by Neal Stephenson
169. Old Man's War - by John Scalzi
170. Schismatrix - by Bruce Sterling
171. Doomsday Book - by Connie Willis
172. Maps In a Mirror - by Orson Scott Card
173. Macroscope - by Piers Anthony
174. The Shockwave Rider - by John Brunner
175. Where Late The Sweet Birds Sang - by Kate Wilhelm
176. Engine Summer - by John Crowley
177. Isle of the Dead - by Roger Zelazny
178. Permutation City - by Greg Egan
179. Nova - by Samuel R Delany
180. The Years of Rice and Salt - by Kim Stanley Robinson
181. Timescape - by Gregory Benford
182. The Rise of Endymion - by Dan Simmons
183. The Wanderer - by Fritz Leiber
184. Parable of The Sower - by Octavia Butler
185. Downbelow Station - by C.J. Cherryh
186. The Masks of Time - by Robert Silverberg
187. Idoru - by William Gibson
188. Star Maker - by Olaf Stapledon
189. Eon - by Greg Bear
190. The Company - by K.J. Parkerr
191. Accelerando - by Charles Stross
192. The Telling - by Ursula K Le Guin
193. Behold The Man - by Michael Moorcock
194. Double Star - by Robert A Heinlein
195. Cyteen - by C.J. Cherryh
196. Dreamsnake - by Vonda N. McIntyre
197. Passage - by Connie Willis
198. The Postman - by David Brin
199. Hominids - by Robert J Sawyer
200. Venus on the Half-Shell - by Kilgore Trout (Philip Jose Farmer)