500 Best Underrated Science Fiction Books

1. The Rookie (Galactic Football League #1) by Scott Sigler

2. Grass (Arbai, #1) by Sheri S. Tepper

3. Parable of the Sower (Earthseed, #1) by Octavia E. Butler

4. The Anubis Gates by Tim Powers

5. The Adventures of the Stainless Steel Rat (Stainless Steel Rat, #4–6) by Harry Harrison

6. Stories of Your Life and Others by Ted Chiang

7. Blood Music by Greg Bear

8. Replay by Ken Grimwood

9. The Songs Of Distant Earth by Arthur C. Clarke

10. Circle of Five (Pha Yul, #1) by Jan Raymond

11. Burden of Sisyphus (Brink of Distinction #1) by Jon Messenger

12. Beggars in Spain (Sleepless, #1) by Nancy Kress

13. The Death of Grass by John Christopher

14. Blindsight (Firefall, #1) by Peter Watts

15. Babel-17 by Samuel R. Delany

16. Sundiver (The Uplift Saga, #1) by David Brin

17. Cyteen (Cyteen, #1–3) by C.J. Cherryh

18. Stand on Zanzibar by John Brunner

19. Rainbows End by Vernor Vinge

20. Callahan’s Crosstime Saloon (Callahan’s #1) by Spider Robinson

21. The Inverted World by Christopher Priest

22. Brightness Reef (Uplift Storm Trilogy, #1) by David Brin

23. The Golden Age (Golden Age #1) by John C. Wright

24. More Than Human by Theodore Sturgeon

25. Lilith’s Brood (Xenogenesis, #1–3) by Octavia E. Butler

26. The Speed of Dark by Elizabeth Moon

27. The Meat Market (Jonathan Harkon Adventures #1) by James Chalk

28. Shards of Honour (Vorkosigan Saga, #1) by Lois McMaster Bujold

29. Eon (The Way, #1) by Greg Bear

30. Logan’s Run (Logan, #1) by William F. Nolan

31. Inferno (Inferno, #1) by Larry Niven

32. Downbelow Station (The Company Wars #1) by C.J. Cherryh

33. Gun, With Occasional Music by Jonathan Lethem

34. The Gate to Women’s Country by Sheri S. Tepper

35. When Gravity Fails by George Alec Effinger

36. The Cyberiad by Stanisław Lem

37. City of Golden Shadow (Otherland, #1) by Tad Williams

38. A World Out of Time (The State, #1) by Larry Niven

39. Killashandra (Crystal Singer #2) by Anne McCaffrey

40. Where Late the Sweet Birds Sang by Kate Wilhelm

41. The Three Stigmata of Palmer Eldritch by Philip K. Dick

42. China Mountain Zhang by Maureen F. McHugh

43. To Say Nothing of the Dog (Oxford Time Travel, #2) by Connie Willis

44. Arielle: Immortal Awakening (Immortal Rapture, #1) by Lilian Roberts

45. Her Smoke Rose Up Forever by James Tiptree Jr.

46. The Sheep Look Up by John Brunner

47. We by Yevgeny Zamyatin

48. The Difference Engine by William Gibson

49. The Windup Girl by Paolo Bacigalupi

50. Tuf Voyaging by George R.R. Martin

51. Hominids (Neanderthal Parallax, #1) by Robert J. Sawyer

52. Treason by Orson Scott Card

53. Hardwired (Hardwired, #1) by Walter Jon Williams

54. The Legacy of Heorot (Heorot #1) by Larry Niven

55. Mission of Gravity (Mesklin, #1) by Hal Clement

56. The Postman by David Brin

57. The Ophiuchi Hotline by John Varley

58. The Light of Other Days by Arthur C. Clarke

59. Inherit the Stars (Giants, #1) by James P. Hogan

60. Crashing Down to Earth (Crashing Down to Earth, #1) by Terry Reid

61. This Changes Everything (The Spanners, #1) by Sally Ember

62. The Man Who Folded Himself by David Gerrold

63. Jennifer Government by Max Barry

64. West of Eden (West of Eden, #1) by Harry Harrison

65. Rogue Moon by Algis Budrys

66. Glasshouse by Charles Stross

67. Hothouse by Brian W. Aldiss

68. Dreamsnake by Vonda N. McIntyre

69. The Accidental Time Machine by Joe Haldeman

70. Heroes Die (The Acts of Caine, #1) by Matthew Woodring Stover

71. The Reality Dysfunction (Night’s Dawn, #1) by Peter F. Hamilton

72. The Forge of God (Forge of God, #1) by Greg Bear

73. Stranger in a Strange Land by Robert A. Heinlein

74. Beauty by Sheri S. Tepper

75. Nova by Samuel R. Delany

76. The Bridge by Iain Banks

77. The People: No Different Flesh by Zenna Henderson

78. Ubik by Philip K. Dick

79. Wild Seed (Patternmaster, #1) by Octavia E. Butler

80. Bloodchild and Other Stories by Octavia E. Butler

81. Songmaster by Orson Scott Card

82. Soldier, Ask Not (Childe Cycle, #3) by Gordon R. Dickson

83. Catori’s Worlds by Murielle Cyr

84. Time and Again (Time, #1) by Jack Finney

85. City of Pearl (Wess’har Wars, #1) by Karen Traviss

86. The Guns of the South by Harry Turtledove

87. A Talent for War (Alex Benedict, #1) by Jack McDevitt

88. Raising the Stones (Arbai, #2) by Sheri S. Tepper

89. Gran-sdur: The Games (Pha Yul, #2) by Jan Raymond

90. Genie-alogy by H.B. Morris

91. The Currents of Space (Galactic Empire #2) by Isaac Asimov

92. The World Inside by Robert Silverberg

93. Lest Darkness Fall by L. Sprague de Camp

94. Brain Wave by Poul Anderson

95. Final Colony Reloaded by Angelo Tsanatelis

96. Biting the Sun by Tanith Lee

97. The Starbirth Assignment: Shifter (Starbirth, #1 part 1) by J.M. Johnson

98. Jem by Frederik Pohl

99. Greybeard by Brian W. Aldiss

100. The Handmaid’s Tale by Margaret Atwood

101. The Female Man by Joanna Russ

102. 1984 by George Orwell

103. Barrayar (Vorkosigan Saga, #7) by Lois McMaster Bujold

104. Santiago: A Myth of the Far Future (Santiago #1) by Mike Resnick

105. The Warrior’s Apprentice (Vorkosigan Saga, #2) by Lois McMaster Bujold

106. The Space Merchants (The Space Merchants, #1) by Frederik Pohl

107. Deathworld 1 by Harry Harrison

108. Martians, Go Home by Fredric Brown

109. Revolt in 2100 by Robert A. Heinlein

110. The Starbirth Assignment: Transmutes (Starbirth, #1 part 2) by J.M. Johnson

111. Galactic Pot-Healer by Philip K. Dick

112. Radix (Radix, #1) by A.A. Attanasio

113. Foreigner (Foreigner, #1) by C.J. Cherryh

114. The Sparrow (The Sparrow, #1) by Mary Doria Russell

115. Embassytown by China Miéville

116. The Silver Metal Lover (Silver Metal Lover, #1) by Tanith Lee

117. Time and Again by Clifford D. Simak

118. Last and First Men by Olaf Stapledon

119. Brave New World by Aldous Huxley

120. Air by Geoff Ryman

121. The Integral Trees (The State, #2) by Larry Niven

122. For Love of Mother-Not (Pip & Flinx #5) by Alan Dean Foster

123. The Visitor by Sheri S. Tepper

124. Cities in Flight (Cities in Flight, #1–4) by James Blish

125. The Family Tree by Sheri S. Tepper

126. Grey Lensman (The Lensman Series, #4) by E.E. Doc Smith

127. Black Man by Richard K. Morgan

128. Orbitsville by Bob Shaw

129. Time for the Stars by Robert A. Heinlein

130. Leviathan Wakes (The Expanse, #1) by James S.A. Corey

131. Stardoc (Stardoc, #1) by S.L. Viehl

132. On the Beach by Nevil Shute

133. Warchild (Warchild, #1) by Karin Lowachee

134. Empire Star by Samuel R. Delany

135. Changing Planes by Ursula K. Le Guin

136. The Snow Queen (The Snow Queen Cycle, #1) by Joan D. Vinge

137. Captive Universe by Harry Harrison

138. Neverness (A Requiem for Homo Sapiens, #0) by David Zindell

139. Berserker (Berserker, #1) by Fred Saberhagen

140. Reason For Vengeance (Dark Vengeance, #1) by Adrian D. Roberts

141. Nor Crystal Tears (Humanx Commonwealth, #9) by Alan Dean Foster

142. Eric Olafson : Space Pirate (Eric Olafson Series) by Vanessa Ravencroft

143. The Man Who Fell to Earth by Walter Tevis

144. The Wild Shore (Three Californias Triptych, #1) by Kim Stanley Robinson

145. The High Crusade by Poul Anderson

146. Pilgrimage: The Book of the People by Zenna Henderson

147. Shadow Team GB (Starbirth, #3) by J.M. Johnson

148. Project Mayhem (Project Butterfly, #2) by K.A. Angliss

149. Solitaire by Kelley Eskridge

150. Slant (Queen of Angels, #4) by Greg Bear

151. Orion (Orion, #1) by Ben Bova

152. Galactic Patrol (The Lensman Series, #3) by E.E. Doc Smith

153. This Time of Darkness by Helen Mary Hoover

154. Now Wait for Last Year by Philip K. Dick

155. Star Smashers of the Galaxy Rangers by Harry Harrison

156. Wasp by Eric Frank Russell

157. Kirinyaga: A Fable of Utopia by Mike Resnick

158. The Shore of Women by Pamela Sargent

159. The Island of Dr. Moreau by H.G. Wells

160. Arana’s Visitor (The Vadelah Chronicles, #1) by Julie Rollins

161. When Earthlings Weep by Michael Barnett

162. The Case of the Displaced Detective: The Arrival (Displaced Detective, #1) by Stephanie Osborn

163. Blackout (All Clear, #1) by Connie Willis

164. His Master’s Voice by Stanisław Lem

165. R Is for Rocket by Ray Bradbury

166. The Shifter Dimension (Starbirth, #2) by J.M. Johnson

167. Midworld (Humanx Commonwealth, #4) by Alan Dean Foster

168. R.U.R. by Karel Čapek

169. After Worlds Collide (When Worlds Collide, #2) by Philip Wylie

170. Seed to Harvest (Patternmaster, #1–4) by Octavia E. Butler

171. Pebble in the Sky (Galactic Empire #3) by Isaac Asimov

172. Beholder’s Eye (Web Shifters, #1) by Julie E. Czerneda

173. With the Lightnings (Lt. Leary, #1) by David Drake

174. Feersum Endjinn by Iain M. Banks

175. Eifelheim by Michael Flynn

176. Roadside Picnic by Arkady Strugatsky

177. Midnight at the Well of Souls (Saga of the Well World, #1) by Jack L. Chalker

178. Finity’s End (The Company Wars, #7) by C.J. Cherryh

179. Survival (Species Imperative, #1) by Julie E. Czerneda

180. The Day of the Triffids by John Wyndham

181. Nemesis by Isaac Asimov

182. Surface Detail (Culture, #9) by Iain M. Banks

183. The Color of Distance by Amy Thomson

184. The Three-Body Problem (Remembrance of Earth’s Past, #1) by Liu Cixin

185. Eye in the Sky by Philip K. Dick

186. The Harvest by Robert Charles Wilson

187. Deus Irae by Philip K. Dick

188. Mission Child by Maureen F. McHugh

189. Dark Star by Alan Dean Foster

190. The Fionavar Tapestry (The Fionavar Tapestry #1–3) by Guy Gavriel Kay

191. Children of God (The Sparrow, #2) by Mary Doria Russell

192. Veterans of the Psychic Wars by Wayne Gerard Trotman

193. The Case of the Displaced Detective: At Speed (Displaced Detective, #2) by Stephanie Osborn

194. Liege-Killer (Paratwa Saga #1) by Christopher Hinz

195. All My Sins Remembered by Joe Haldeman

196. The Case of the Cosmological Killer: The Rendlesham Incident (Displaced Detective, #3) by Stephanie Osborn

197. Moving Mars (Queen of Angels, #3) by Greg Bear

198. Valor’s Choice (Confederation #1) by Tanya Huff

199. Schismatrix Plus by Bruce Sterling

200. The Case of the Cosmological Killer: Endings and Beginnings (Displaced Detective, #4) by Stephanie Osborn

201. The Martian Chronicles by Ray Bradbury

202. The Black Cloud by Fred Hoyle

203. The Big Time by Fritz Leiber

204. The Status Civilization by Robert Sheckley

205. Second Stage Lensmen (The Lensman Series, #5) by E.E. Doc Smith

206. Daemon (Daemon, #1) by Daniel Suarez

207. The Vor Game (Vorkosigan Saga, #6) by Lois McMaster Bujold

208. The Telling (Hainish Cycle #8) by Ursula K. Le Guin

209. Vacuum Flowers by Michael Swanwick

210. Stardance by Spider Robinson

211. Children of the Lens (The Lensman Series, #6) by E.E. Doc Smith

212. The Skylark of Space (Skylark, #1) by E.E. Doc Smith

213. Chthon by Piers Anthony

214. Four Ways to Forgiveness by Ursula K. Le Guin

215. The Shrinking Man by Richard Matheson

216. Mindbridge by Joe Haldeman

217. Icerigger (Icerigger, #1) by Alan Dean Foster

218. In the Garden of Iden (The Company, #1) by Kage Baker

219. Pacific Edge (Three Californias Triptych, #3) by Kim Stanley Robinson

220. The Left Hand of Darkness by Ursula K. Le Guin

221. Blind Lake by Robert Charles Wilson

222. The Caves of Steel (Robot, #1) by Isaac Asimov

223. Agent of Change (Liaden Universe, #9) by Sharon Lee

224. The Gentle Giants of Ganymede (Giants, #2) by James P. Hogan

225. Macroscope by Piers Anthony

226. Mind of My Mind (Patternmaster, #2) by Octavia E. Butler

227. Consider Phlebas (Culture, #1) by Iain M. Banks

228. Kallocain by Karin Boye

229. The Heart of Valor (Confederation, #3) by Tanya Huff

230. The V Girl by Mya Robarts

231. The Unit by Ninni Holmqvist

232. Switch! The Lost Kingdoms of Karibu by Karen Prince

233. Below the Root (Green Sky, #1) by Zilpha Keatley Snyder

234. The Starter (Galactic Football League #2) by Scott Sigler

235. Plague of the Dead (Morningstar Strain #1) by Z.A. Recht

236. The All-Pro (Galactic Football League #3) by Scott Sigler

237. The Bohr Maker by Linda Nagata

238. Native Tongue (Native Tongue, #1) by Suzette Haden Elgin

239. March Upcountry (Empire of Man, #1) by David Weber

240. Schism by Ronan Gallagher

241. The Drowned World by J.G. Ballard

242. Courtship Rite by Donald Kingsbury

243. Hard to Be a God by Arkady Strugatsky

244. Hellstrom’s Hive by Frank Herbert

245. The Survivors (Ragnarok, #1) by Tom Godwin

246. Pastwatch: The Redemption of Christopher Columbus by Orson Scott Card

247. Triplanetary (Lensman, #1) by E.E. Doc Smith

248. Emphyrio by Jack Vance

249. Mysterium by Robert Charles Wilson

250. Darwin’s Children by Greg Bear

251. The Paradox Men by Charles L. Harness

252. Six Moon Dance by Sheri S. Tepper

253. The Gameplayers of Zan (Ler, #2) by M.A. Foster

254. The Compleat Enchanter by L. Sprague de Camp

255. In Conquest Born (In Conquest Born, #1) by C.S. Friedman

256. Sinister Barrier by Eric Frank Russell

257. World War Z: An Oral History of the Zombie War by Max Brooks

258. Star Maker by Olaf Stapledon

259. Evolution by Stephen Baxter

260. Becoming Human (Harmony of Worlds, #2) by Valerie J. Freireich

261. Expendable (League of Peoples, #1) by James Alan Gardner

262. Nightfall One by Isaac Asimov

263. Dawn (Xenogenesis, #1) by Octavia E. Butler

264. Do Androids Dream of Electric Sheep? by Philip K. Dick

265. The Machine Stops by E.M. Forster

266. S is for Space by Ray Bradbury

267. Mindstar Rising (Greg Mandel, #1) by Peter F. Hamilton

268. The Rise of Endymion (Hyperion Cantos, #4) by Dan Simmons

269. Oath of Fealty by Larry Niven

270. Pashazade (Arabesk, #1) by Jon Courtenay Grimwood

271. Night Walk by Bob Shaw

272. Conflict of Honors (Liaden Universe, #8) by Sharon Lee

273. The Claw of the Conciliator (The Book of the New Sun, #2) by Gene Wolfe

274. Technicolor Time Machine by Harry Harrison

275. Webways to the Universe: Journey to Jangala by Charles G. Wilson

276. Lamikorda by D.R. Merrill

277. Lieutenant Henry Gallant (The Henry Gallant Saga, #2) by H. Peter Alesso

278. Dawn of Procyon by Mark R. Healy

279. The Sword of the Lictor (The Book of the New Sun, #3) by Gene Wolfe

280. The Sirian Experiments by Doris Lessing

281. The Final Encyclopedia (Childe Cycle, #7) by Gordon R. Dickson

282. Battle Circle (Battle Circle, #1–3) by Piers Anthony

283. Robopocalypse (Robopocalypse, #1) by Daniel H. Wilson

284. Engaging the Enemy (Vatta’s War, #3) by Elizabeth Moon

285. Victory Conditions (Vatta’s War, #5) by Elizabeth Moon

286. The Companions by Sheri S. Tepper

287. Marque and Reprisal (Vatta’s War, #2) by Elizabeth Moon

288. Command Decision by Elizabeth Moon

289. Callahan’s Lady (Lady Sally’s #1, Callahan’s #4) by Spider Robinson

290. Steppe by Piers Anthony

291. Arslan by M.J. Engh

292. And All Between (Green Sky, #2) by Zilpha Keatley Snyder

293. Trading in Danger (Vatta’s War, #1) by Elizabeth Moon

294. Armor by John Steakley

295. Fool’s War by Sarah Zettel

296. A Thousand Words for Stranger (Trade Pact Universe, #1) by Julie E. Czerneda

297. The Shifter Dimension (Starbirth, #2) by J.M. Johnson

298. Jack of Shadows by Roger Zelazny

299. The Star King (Demon Princes, #1) by Jack Vance

300. Starship by Brian W. Aldiss

301. The Gray Prince by Jack Vance

302. Dante’s Equation by Jane Jensen

303. The Rolling Stones by Robert A. Heinlein

304. Gibbon’s Decline and Fall by Sheri S. Tepper

305. Monday Begins on Saturday by Arkady Strugatsky

306. The Green Hills of Earth by Robert A. Heinlein

307. Woman On The Edge Of Time by Marge Piercy

308. Eternity Row (Stardoc, #5) by S.L. Viehl

309. Starbridge (Starbridge, #1) by A.C. Crispin

310. Heaven by Ian Stewart

311. Assignment in Eternity by Robert A. Heinlein

312. Nexus (Nexus, #1) by Ramez Naam

313. A Song for Arbonne by Guy Gavriel Kay

314. Split Infinity (Apprentice Adept #1) by Piers Anthony

315. Dies the Fire (Emberverse, #1) by S.M. Stirling

316. Valor’s Trial (Confederation, #4) by Tanya Huff

317. Jumper (Jumper, #1) by Steven Gould

318. Accelerando by Charles Stross

319. Ill Wind by Kevin J. Anderson

320. Falling Free (Vorkosigan Saga, #4) by Lois McMaster Bujold

321. Century Rain by Alastair Reynolds

322. Wildside by Steven Gould

323. Cuckoo’s Egg (Age of Exploration, #3) by C.J. Cherryh

324. Transition by Iain Banks

325. The Time Ships by Stephen Baxter

326. Endless Blue by Wen Spencer

327. A Confederation of Valor (Confederation, #1–2) by Tanya Huff

328. Robot Visions (Robot #0.5) by Isaac Asimov

329. Little Fuzzy (Fuzzy Sapiens, #1) by H. Beam Piper

330. A Case of Conscience (After Such Knowledge, #4) by James Blish

331. The White Mountains (The Tripods, #1) by John Christopher

332. First Lensman (The Lensman Series, #2) by E.E. Doc Smith

333. The Star Beast by Robert A. Heinlein

334. Midshipman’s Hope (Seafort Saga, #1) by David Feintuch

335. Falcon by Emma Bull

336. A Rose for Armageddon by Hilbert Schenck

337. Tower Of Glass by Robert Silverberg

338. A Quantum Murder (Greg Mandel, #2) by Peter F. Hamilton

339. The Nano Flower (Greg Mandel, #3) by Peter F. Hamilton

340. Queen of Angels (Queen of Angels, #1) by Greg Bear

341. The Shadow of the Torturer (The Book of the New Sun, #1) by Gene Wolfe

342. The Killing Machine (Demon Princes, #2) by Jack Vance

343. Mindswap by Robert Sheckley

344. The Palace of Love (Demon Princes, #3) by Jack Vance

345. Of Hearts And Stars by Edward Dean West

346. Bat Blood: The Devil’s Claw by Richard Myerscough

347. The Face (Demon Princes, #4) by Jack Vance

348. The Better Part of Valor (Confederation #2) by Tanya Huff

349. The Dragon Never Sleeps by Glen Cook

350. Fury by Henry Kuttner

351. This Alien Shore by C.S. Friedman

352. The Book of Dreams (Demon Princes, #5) by Jack Vance

353. Enchantress from the Stars by Sylvia Engdahl

354. The Fortunate Fall by Raphael Carter

355. Illusion by Paula Volsky

356. The Gold Coast (Three Californias Triptych, #2) by Kim Stanley Robinson

357. Girl in Landscape by Jonathan Lethem

358. Alive (The Generations Trilogy, #1) by Scott Sigler

359. The Romulan Way (Star Trek: Rihannsu, #2) by Diane Duane

360. Saturday, the Twelfth of October by Norma Fox Mazer

361. Vurt by Jeff Noon

362. Brother John by Rutledge Etheridge

363. The Anome (Durdane, #1) by Jack Vance

364. A Billion Days of Earth by Doris Piserchia

365. Alien Salvation (Clans of Kalquor, #4) by Tracy St. John

366. Genie-alogy by H.B. Morris

367. Until the Celebration (Green Sky, #3) by Zilpha Keatley Snyder

368. Avogadro Corp (Singularity #1) by William Hertling

369. Wool Omnibus (Silo, #1) by Hugh Howey

370. Carnival by Elizabeth Bear

371. The Deep Beyond: Cuckoo’s Egg / Serpent’s Reach by C.J. Cherryh

372. The City of Ember (Book of Ember, #1) by Jeanne DuPrau

373. The Children of Men by P.D. James

374. The Dosadi Experiment (ConSentiency Universe, #2) by Frank Herbert

375. Earthcore by Scott Sigler

376. The Truth of Valor (Confederation, #5) by Tanya Huff

377. Agent to the Stars by John Scalzi

378. Giants’ Star (Giants, #3) by James P. Hogan

379. How to Survive a Robot Uprising: Tips on Defending Yourself Against the Coming Rebellion by Daniel H. Wilson

380. There Will Be Time by Poul Anderson

381. Partials (Partials Sequence, #1) by Dan Wells

382. Kongres futurologiczny. Opowiadania Ijona Tichego (Stanisław Lem. Dzieła, #2) by Stanisław Lem

383. The Killing Star by Charles Pellegrino

384. Conquistador by S.M. Stirling

385. The Two Of Them by Joanna Russ

386. This is Not a Game by Walter Jon Williams

387. Up the Line by Robert Silverberg

388. He, She and It by Marge Piercy

389. The Outback Stars (The Outback Stars #1) by Sandra McDonald

390. Chronicles of the Lensmen, Volume 1: Triplanetary / First Lensman / Galactic Patrol by E.E. Doc Smith

391. The Demolished Man by Alfred Bester

392. Eternity Road by Jack McDevitt

393. Who? by Algis Budrys

394. Time Storm by Gordon R. Dickson

395. Nocturnal by Scott Sigler

396. Preserver (Transformer, #3) by M.A. Foster

397. Time’s Eye (A Time Odyssey, #1) by Arthur C. Clarke

398. Waves by M.A. Foster

399. Blind Waves by Steven Gould

400. A Plague of Demons by Keith Laumer

401. Hellspark by Janet Kagan

402. Starman Jones by Robert A. Heinlein

403. The Ship That Sailed the Time Stream by G.C. Edmondson

404. Infected (Infected, #1) by Scott Sigler

405. The First Men in the Moon by H.G. Wells

406. Ash Ock (Paratwa Saga #2) by Christopher Hinz

407. Plague of Memory (Stardoc, #7) by S.L. Viehl

408. Testament (Harmony of Worlds, #1) by Valerie J. Freireich

409. The Fountains of Paradise by Arthur C. Clarke

410. The Lives of Dax by Marco Palmieri

411. A Woman of the Iron People by Eleanor Arnason

412. A.I. Apocalypse by William Hertling

413. Prostho Plus by Piers Anthony

414. Kiln People by David Brin

415. Spin Control (Spin Trilogy, #2) by Chris Moriarty

416. The Harper Hall of Pern (Pern: Harper Hall, #1–3) by Anne McCaffrey

417. Monstrocity by Jeffrey Thomas

418. Between Planets by Robert A. Heinlein

419. Metropolitan (Metropolitan, #1) by Walter Jon Williams

420. Slow River by Nicola Griffith

421. Code of Conduct (Jani Kilian Chronicles, #1) by Kristine Smith

422. Primary Inversion (Saga of the Skolian Empire, #1) by Catherine Asaro

423. Camp Concentration by Thomas M. Disch

424. City on Fire (Metropolitan #2) by Walter Jon Williams

425. Spin State (Spin Trilogy, #1) by Chris Moriarty

426. The War Against The Rull by A.E. van Vogt

427. Sky Coyote (The Company, #2) by Kage Baker

428. Grimspace (Sirantha Jax, #1) by Ann Aguirre

429. Way Station by Clifford D. Simak

430. Deathworld 2 by Harry Harrison

431. Counting Heads (Counting Heads, #1) by David Marusek

432. Cetaganda (Vorkosigan Saga, #9) by Lois McMaster Bujold

433. Broken (Extrahumans, #1) by Susan Jane Bigelow

434. Spinward Fringe Broadcast 0: Origins (First Light Chronicles, #1–3; Spinward Fringe, #0) by Randolph Lalonde

435. Deep Screams by G.R. Holton

436. Patternmaster (Patternmaster, #4) by Octavia E. Butler

437. The Merro Tree by Katie Waitman

438. …And the Stars Will Sing by Michelle Browne

439. Majestic Twelve Minus One by Lance Moore

440. The War of Alien Aggression (War of Alien Aggression, #1–5) by A.D. Bloom

441. First Contact (Aoleon The Martian Girl, #1) by Brent LeVasseur

442. Greegs & Ladders by Zack Mitchell

443. Nascent Decay (The Goddess of Decay Book 1) by Charles Hash

444. I Am Titanium by Jade Clark

445. My Return to Planet Earth (The Chronicles of Jake, #1) by Peter Lewis Atkinson

446. Begin Anew (The New Day #1) by Richard Brant

447. Star Realms: Rescue Run by Jon Del Arroz

448. Wolf by Denise M. Main

449. A Cold Day In Hell by Denise M. Main

450. Great Work of Time by John Crowley

451. The Stolen: Two Short Stories by Michelle Browne

452. Carlucci 3-in-1 by Richard Paul Russo

453. The Godspeaker Trilogy by Karen Miller

454. Broken Worlds: Dystopian Stories by Thomas Brown

455. Of the Andromeda Martian Catastrophe by Vegas Luna

456. Voyage From Yesteryear by James P. Hogan

457. Dark Age by Felix O. Hartmann

458. The Risen Empire (Succession, #1) by Scott Westerfeld

459. Engine Summer by John Crowley

460. Dragon and Thief (Dragonback, #1) by Timothy Zahn

461. The Metamorphosis of Prime Intellect by Roger Williams

462. Missing Time by J. David Clarke

463. Emergence (Eden’s Root Trilogy, #3) by Rachel Fisher

464. The Long Run: A Tale of the Continuing Time (The Continuing Time, #2) by Daniel Keys Moran

465. Computer One by Warwick Collins

466. The Citadel of the Autarch (The Book of the New Sun, #4) by Gene Wolfe

467. Rx: A Tale of Electronegativity by Robert Brockway

468. Seeds of War (Eden’s Root Trilogy, #2) by Rachel Fisher

469. Eden’s Root (Eden’s Root Trilogy, #1) by Rachel Fisher

470. The Mirror of Her Dreams (Mordant’s Need, #1) by Stephen R. Donaldson

471. The Blight (Eden’s Root Trilogy, #0.5) by Rachel Fisher

472. I, the Provocateur by Vardan Partamyan

473. Empire of the Ants (La Saga des Fourmis, #1) by Bernard Werber

474. Dauntless (The Lost Fleet, #1) by Jack Campbell

475. The Genie-alogy of Nathan Levy by G.B. Hope

476. This Perfect Day by Ira Levin

477. Aspho Fields (Gears of War, #1) by Karen Traviss

478. The Vanishing Girl (The Vanishing Girl, #1) by Laura Thalassa

479. The Crew (The Crypt #1) by Scott Sigler

480. The MVP (Galactic Football League #4) by Scott Sigler

481. The Golden Apples of the Sun by Ray Bradbury

482. Illumination (Cyberevolution, #5) by Kaitlyn O’Connor

483. Needle (Needle, #1) by Hal Clement

484. Strangelets by Michelle Gagnon

485. Manhattan Transfer by John E. Stith

486. The Instrumentality of Mankind by Cordwainer Smith

487. The Flying Sorcerers by David Gerrold

488. Windhaven by George R.R. Martin

489. Proxima by Stephen Baxter

490. Doctor Who and the Carnival of Monsters by Terrance Dicks

491. Into Deepest Space by Fred Hoyle

492. Space Cadet by Robert A. Heinlein

493. Cyborg (Cyberevolution, #4) by Kaitlyn O’Connor

494. The Stars Blue Yonder (The Outback Stars #3) by Sandra McDonald

495. Emergence by David R. Palmer

496. Greener Than You Think (Classics of Modern Science Fiction 10) by Ward Moore

497. The Legion of Space (Legion of Space, #1) by Jack Williamson

498. The Apocalypse Troll by David Weber

499. Lovelock (Mayflower Trilogy, #1) by Orson Scott Card

500. Stealing the Elf-King’s Roses by Diane Duane

Source: Goodreads