The Martian by Andy WeirThe Three-Body Problem by Liu CixinWe Are Legion (We Are Bob) by Dennis E. TaylorThe Dark Forest by Liu CixinDeath's End by Liu Cixin
Best Hard Science Fiction of the 21st Century
52nd out of 210 books — 1,551 voters
The Martian by Andy WeirRevelation Space by Alastair ReynoldsFoundation by Isaac AsimovDune by Frank HerbertRendezvous with Rama by Arthur C. Clarke
best hard science fiction
101st out of 426 books — 796 voters

Ready Player One by Ernest ClineThe Martian by Andy WeirOld Man's War by John ScalziThe Hunger Games by Suzanne CollinsLeviathan Wakes by James S.A. Corey
Best Science Fiction of the 21st Century
354th out of 1,260 books — 9,058 voters
Accelerando by Charles StrossA Fire Upon the Deep by Vernor VingeDiaspora by Greg EganPermutation City by Greg EganAltered Carbon by Richard K. Morgan
Transhuman Science Fiction
32nd out of 153 books — 186 voters

Ender’s Game by Orson Scott CardThe Hitchhiker’s Guide to the Galaxy by Douglas AdamsDune by Frank Herbert1984 by George OrwellFahrenheit 451 by Ray Bradbury
Best Science Fiction
1110th out of 3,721 books — 7,118 voters
Ender’s Game by Orson Scott CardDune by Frank Herbert1984 by George OrwellFahrenheit 451 by Ray BradburyBrave New World by Aldous Huxley
Best Science Fiction & Fantasy Books
1986th out of 8,551 books — 24,866 voters

The Forever War by Joe HaldemanNeuromancer by William GibsonHyperion by Dan SimmonsChildhood’s End by Arthur C. ClarkeRendezvous with Rama by Arthur C. Clarke
Reddit Underrated Sci Fi List
49th out of 95 books — 92 voters

Old Man's War by John ScalziThe Hunger Games by Suzanne CollinsAltered Carbon by Richard K. MorganThe Road by Cormac McCarthyRevelation Space by Alastair Reynolds
Classic Science Fiction - 2000-2009
106th out of 309 books — 241 voters
Ender’s Game by Orson Scott CardThe Logoharp by Arielle  EmmettThe Martian by Andy WeirAll Systems Red by Martha WellsOff to Be the Wizard by Scott  Meyer
The Awesome Sci-Fi List
160th out of 295 books — 12 voters

Riding the Torch by Norman SpinradAurora by Kim Stanley RobinsonPushing Ice by Alastair ReynoldsRocheworld by Robert L. ForwardSongs of Distant Earth by Arthur C. Clarke
Realistic Interstellar Fiction
19th out of 38 books — 6 voters
The Black Cloud by Fred HoyleSaturn Run by John SandfordWe Are Legion (We Are Bob) by Dennis E. TaylorSundiver by David BrinFreedom™ by Daniel Suarez
https://superkuh.com/hardscifi.txt
9th out of 32 books — 1 voter

Charlie and the Great Glass Elevator by Roald DahlThe 39 Steps by John BuchanUp the Down Staircase by Bel KaufmanThe Circular Staircase by Mary Roberts RinehartThe Ersatz Elevator by Lemony Snicket
Up and Down Structures
214th out of 330 books — 30 voters
Dune by Frank HerbertEnder’s Game by Orson Scott Card1984 by George OrwellBrave New World by Aldous HuxleyHyperion by Dan Simmons
Best Science Fiction Ever Written.
1812th out of 1,821 books — 4,013 voters

Ashen Winter by Mike MullinAshfall by Mike MullinThis World We Live In by Susan Beth PfefferAlas, Babylon by Pat FrankThe Dead and the Gone by Susan Beth Pfeffer
SciFi so real its SCARY.
406th out of 1,118 books — 1,895 voters
Hyperion by Dan SimmonsDune by Frank HerbertThe Martian by Andy WeirThe Hitchhiker’s Guide to the Galaxy by Douglas AdamsThe Forever War by Joe Haldeman
/r/PrintSF Recommends Science Fiction Novels
319th out of 367 books — 299 voters

A Memory Called Empire by Arkady MartineA Prayer for the Crown-Shy by Becky ChambersAnd Shall Machines Surrender by Benjanun SriduangkaewAxiomatic by Greg EganDiaspora by Greg Egan
Berlin SF Club 2023
7th out of 31 books — 1 voter
Fourth Wing by Rebecca YarrosHappy Place by Emily HenryThe Seven Husbands of Evelyn Hugo by Taylor Jenkins ReidI'm Glad My Mom Died by Jennette McCurdySpare by Prince Harry
What Women Born in the 90's Have Read in 2023
660th out of 2,783 books — 271 voters

Even the Stars Shall Rejoice by Rikki de la VegaThe Left Hand of Darkness by Ursula K. Le GuinAll Systems Red by Martha WellsBlack Sun by Rebecca RoanhorseAncillary Justice by Ann Leckie
Nonbinary Societies in SFF
85th out of 134 books — 23 voters
The Living Dead by John Joseph AdamsThe Windup Girl by Paolo BacigalupiThe Best Science Fiction of the Year, Volume 1 by Neil ClarkeA Cruel Wind by Glen CookThe Best Horror of the Year by Ellen Datlow
Your Favorite Night Shade Books
87th out of 102 books — 6 voters

Forever Ends by Carol HibbsGold Shadow by L.C. PerryThe Foundation Trilogy by Isaac AsimovThe Light Years by R.W.W. GreeneCryptonomicon by Neal Stephenson
Cerebral speculative fiction
6th out of 6 books — 12 voters

Unanimity by Alexandra AlmeidaThe Rain Never Came by Lachlan WalterObernewtyn by Isobelle CarmodyLetters from the Light by Shel CalopaOn the Beach by Nevil Shute
Australian Science Fiction
51st out of 87 books — 27 voters
Twilight by Stephenie MeyerBreaking Dawn by Stephenie MeyerWicked by Gregory MaguireThe Catcher in the Rye by J.D. SalingerNew Moon by Stephenie Meyer
Disappointing Books
1343rd out of 2,730 books — 4,599 voters

Harry Potter and the Deathly Hallows by J.K. RowlingThe Hunger Games by Suzanne CollinsThe Kite Runner by Khaled HosseiniThe Book Thief by Markus ZusakHarry Potter and the Half-Blood Prince by J.K. Rowling
Best Books of the 21st Century
7542nd out of 9,849 books — 22,120 voters
Snow Crash by Neal StephensonConsider Phlebas by Iain M. BanksFahrenheit 451 by Ray BradburyPandora's Star by Peter F. HamiltonStarship Troopers by Robert A. Heinlein
Sword and Laser Science Fiction list
1019th out of 1,127 books — 1,875 voters

Harry Potter and the Deathly Hallows by J.K. RowlingThe Hunger Games by Suzanne CollinsHarry Potter and the Half-Blood Prince by J.K. RowlingHarry Potter and the Goblet of Fire by J.K. RowlingHarry Potter and the Order of the Phoenix by J.K. Rowling
Best Books of the Decade: 2000s
4200th out of 7,188 books — 28,369 voters
The Hunger Games by Suzanne CollinsPride and Prejudice by Jane AustenTo Kill a Mockingbird by Harper LeeHarry Potter and the Order of the Phoenix by J.K. RowlingThe Book Thief by Markus Zusak
Best Books Ever
38487th out of 76,940 books — 286,321 voters