/r/sciencefiction/

r/sciencefiction

318k members
r/sciencefiction is a subreddit with 318k members. The community frequently discusses fiction, science fiction, scifi, sci fi, and worst, and they frequently recommend/review sci-fi books, science fiction books, and science fiction.
This reddit is for fans and creators of Science Fiction and related media in any form. SF topics should involve plausible ideas reached through the rational application of science. General speculative fiction posts are fine as long as they primarily focus on Science Fiction.

Popular Topics in r/sciencefiction

#1

Fiction

33 posts
#2

Science Fiction

33 posts
#3

Scifi

23 posts
#4

Sci Fi

17 posts
#5

Worst

15 posts
#6

Books

13 posts
#7

Tired

9 posts
#8

Looking For A Short Story

9 posts
#9

Book

8 posts
#10

Annoying

7 posts

Products Discussed in r/sciencefiction

Sci-fi Books

150 reviews
#1
Robert A. Heinlein
4.6★ from 14 reviews
#2
Isaac Asimov
4.8★ from 9 reviews
#3
Orson Scott Card
5.0★ from 8 reviews
#1
Arthur C. Clarke
5.0★ from 5 reviews
#2
Frank Herbert
5.0★ from 4 reviews
#3
Andy Weir
5.0★ from 4 reviews

Science Fiction

51 reviews
#1
Martha Wells
5.0★ from 4 reviews
#2
Andy Weir
4.7★ from 3 reviews
#3
Adrian Tchaikovsky
5.0★ from 3 reviews

Member Growth in r/sciencefiction

Yearly
+39k members(14.1%)

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About

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Last updated: September 20, 2026