r/scifi is a subreddit with 4.5M members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses scifi, sci fi, books, book, and worst, and they frequently recommend/review sci-fi books, sci-fi literature, and sci-fi novels.
Welcome to r/scifi, a home for all things science fiction, the heart of speculative fiction.
Join the discussion about your favorite books, authors, movies, shows, comics, and games — anything with a touch of science and imagination.
Popular Themes in r/scifi
#1
Advice Requests
: "Help finding a short story about uplifted animals"
10 posts
#2
Solution Requests
: "Help me find a time travel story I once read"
6 posts
#3
Self-Promotion
: "[Self-Promotion] Big steampunk fan, so I made the ultimate heavy cannon prop: The Tesla Cannon! Spinning center piece, some lights and no additional gears (I hope it still qualifies as steampunk)."
2 posts
Popular Topics in r/scifi
#1
Scifi
32 posts
#2
Sci Fi
24 posts
#3
Books
20 posts
#4
Book
16 posts
#5
Worst
15 posts
#6
Struggling
13 posts
#7
Hate
13 posts
#8
Movies
12 posts
#9
Annoying
10 posts
#10
Series
9 posts
Products Discussed in r/scifi
Sci-fi Books
588 reviews
#1
Adrian Tchaikovsky
4.7★ from 14 reviews
#2
Iain M. Banks
4.9★ from 11 reviews
#3
Andy Weir
4.8★ from 11 reviews
Sci-fi Literature
142 reviews
#1
Isaac Asimov
4.8★ from 5 reviews
#2
Orson Scott Card
4.8★ from 4 reviews
#3
Frank Herbert
4.5★ from 4 reviews
Sci-fi Novels
96 reviews
#1
Alastair Reynolds
4.7★ from 7 reviews
#2
Jack McDevitt
4.7★ from 3 reviews
#3
Stephen Baxter
4.7★ from 3 reviews
Flair Used in r/scifi
#1
Recommendations
: "Pacific Rim, worth a revisit?"
35 posts
#2
Original Content
: "T.A.R.D.I.S outhouse build"
34 posts
#3
General
: "“Tick-tock, seven o’clock, time to get up, seven o’clock! Today is August 4, 2026 in the city of Allendale, California.”"
29 posts
#4
Films
: "It was a slightly cheesy rewatch, but I still love it because its core message holds up"
21 posts
#5
Print
: "“There Will Come Soft Rains” by Ray Bradbury"
19 posts
#6
ID This
: "Awoken memory of something I watched on TV in the early 90s"
15 posts
#7
TV
: "Let's be honest, The Expanse was the best"
10 posts
#8
Art
: "Young Technician 1979"
7 posts
#9
Games
: "Some concept art from our scifi bullet-heaven roguelite game"
4 posts
#10
Community
: "As a filmmaker, I wanted to write a sci-fi novel that feels purely cinematic. What are your thoughts on blending Cyberpunk with Cosmic Horror?"
1 post
Member Growth in r/scifi
Yearly
+68k members(1.5%)
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About
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This page gives a focused view of r/scifi, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: August 10, 2026