Since time immemorial, mankind has been looking up at the stars and dreaming, but it was only centuries ago that we started turning those dreams into fiction. And what remarkable dreams they are—dreams of distant worlds, unearthly creatures, parallel universes, artificial intelligence, and so much more. Today, we call those dreams science fiction.
Science fiction’s earliest inklings began in the mid-1600s, when Johannes Kepler and Francis Godwin wrote pioneering stories about voyages to the moon. Some scholars argue that science fiction as we now understand it was truly born in 1818, when Mary Shelley published Frankenstein, the first novel of its kind whose events are explained by science, not mysticism or miracles. Now, two centuries later, sci-fi is a sprawling and lucrative multimedia genre with countless subgenres, such as dystopian fiction, postapocalyptic fiction, and climate fiction, to name just a few. It’s also remarkably porous, allowing for some overlap with genres like fantasy and horror.
Sci-fi brings out the best in our imaginations and evokes a sense of wonder, but it also inspires a spirit of questioning. Through the enduring themes of sci-fi, we can examine the zeitgeist’s cultural context and ethical questions. Our favorite works in the genre make good on this promise, meditating on everything from identity to oppression to morality. As the Nobel Prize-winning novelist Doris Lessing said, “Science fiction is some of the best social fiction of our time.”
Over two years ago, we published a version of this list featuring 50 books. But why stop at 50? Now, as part of our latest Summer Fiction Week, we’ve cast a wider net and expanded the list to 75 titles. Choosing the 75 best science fiction books of all time wasn’t easy, so to get the job done, we had to establish some guardrails. Though we assessed single installments as representatives of their series, we limited the list to one book per author. We also emphasized books that brought something new and innovative to the genre—to borrow a great sci-fi turn of phrase, books that “boldly go where no one has gone before.”
Now, in ranked order, here are the best science fiction books of all time.
#1
181 • 2,443 Readers • 353 pages • 3.8
#2
#3
20 • 854 Readers • 182 pages • 4
#4
#5
1979 • 883 Readers • 292 pages • 4.3
#6
#4 of 9 in Hainish Cycle
1969 • 1,250 Readers • 267 pages • 4.1
#7
2000 • 1,666 Readers • 282 pages • 3.8
#8
2019 • 868 Readers • 350 pages • 4.3
#9
2014 • 1,745 Readers • 333 pages • 4.1
#10
1968 • 1,618 Readers • 223 pages • 3.9
#11
#1 of 4 in Remembrance of Earth's Past
2006 • 2,900 Readers • 400 pages • 3.9
#12
1949 • 5,414 Readers • 352 pages • 4.2
#13
2018 • 207 Readers • 144 pages • 3.6
#14
1930 • 2,853 Readers • 332 pages • 3.9
#15
2010 • 216 Readers • 257 pages • 3.3
#16
#17
1953 • 660 Readers • 212 pages • 4
#18
1972 • 500 Readers • 226 pages • 4
#19
1959 • 502 Readers • 322 pages • 4
#20
#1 of 1 in Canopus in Argos: Archives Series,
1979 • 10 Readers • 364 pages • 3
#21
#22
#23
#24
#25
1992 • 70 Readers • 416 pages • 3.9
#26
2017 • 102 Readers • 3.7
#27
#1 of 3 in 1Q84
2009 • 838 Readers • 1,184 pages • 3.7
#28
#29
#30
2023 • 134 Readers • 380 pages • 3.5
#31
1978 • 1,487 Readers • 1,553 pages • 4.2
#32
#33
#34
2009 • 503 Readers • 336 pages • 3.9
#35
2015 • 151 Readers • 432 pages • 3.3
#36
1992 • 190 Readers • 3.4
#37
1979 • 25 Readers • 209 pages • 3.7
#38
#1 of 4 in Wayfarers
2014 • 1,398 Readers • 518 pages • 4.1
#39
2000 • 138 Readers • 3.3
#40
2021 • 3,595 Readers • 496 pages • 4.4
#41
#1 of 2 in St. Leibowitz
1959 • 548 Readers • 334 pages • 3.9
#42
#1 of 6 in The Hitchhiker's Guide to the Galaxy
1979 • 3,426 Readers • 215 pages • 4.2
#43
#44
1955 • 355 Readers • 278 pages • 3.8
#45
#1 of 3 in Sprawl
1984 • 1,694 Readers • 271 pages • 3.9
#46
2022 • 380 Readers • 312 pages • 4.1
#47
2017 • 250 Readers • 351 pages • 4
#48
39 Readers • 4.5
#49
1894 • 1,085 Readers • 140 pages • 3.7
#50
#51
1966 • 532 Readers • 288 pages • 3.8
#52
1962 • 1,353 Readers • 149 pages • 3.9
#53
1961 • 635 Readers • 7h 42m • 3.8
#54
#1 of 3 in Children of Time
2015 • 1,544 Readers • 600 pages • 4.3
#55
#56
2020 • 27 Readers • 305 pages • 3.5
#57
2019 • 2,211 Readers • 4h 16m • 3.9
#58
1967 • 220 Readers • 303 pages • 3.7
#59
#2 of 5 in The Book of the New Sun
1981 • 102 Readers • 303 pages • 4.1
#60
#62
#63
1949 • 12 Readers • 205 pages • 3
#64
#65
1963 • 142 Readers • 236 pages • 4.1
#66
2000 • 166 Readers • 304 pages • 3.6
#67
1985 • 577 Readers • 453 pages • 4.1
#68
104 Readers • 3.7
#69
1992 • 1,416 Readers • 448 pages • 3.9
#70
2000 • 56 Readers • 356 pages • 4
#71
2020 • 20 Readers • 4.5
#72
2024 • 94 Readers • 336 pages • 4.3
#73
2012 • 675 Readers • 318 pages • 3.9
#74
#1 of 4 in Lady Astronaut Universe
2018 • 509 Readers • 384 pages • 4.1
#75
2021 • 321 Readers • 256 pages • 3.7