r/scifi is a subreddit with 4.5M members. The most common kinds of discussions are advice requests and self-promotion, and the community frequently discusses scifi, sci fi, book, books, and series, 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
: "Looking for a book about a planet city like Coruscant."
12 posts
#2
Self-Promotion
: "New Sci-Fi Novel: “Children of the Stars”"
4 posts
#3
Pain & Anger
: "Comet is the absolute BEST channel"
1 post
#4
Ideas
: "A few years ago, the grandson of Hugo Gernsback asked me to make an iconic raygun, for an upcoming documentary. I came up with this. All metal, some lights, automotive paintjob, working laser. He was beyond happy. What do you guys think?"
1 post
Popular Topics in r/scifi
#1
Scifi
: "What Scifi books are you baffled haven't been made into TV shows?"
47 posts
#2
Sci Fi
25 posts
#3
Book
: "My Review about Death's end Book"
24 posts
#4
Books
: "Need 6 scifi book on audible by end of month, please."
23 posts
#5
Series
: "What Scifi books are you baffled haven't been made into TV shows?"
18 posts
#6
Movies
: "Upstream Color (2013) - A look back"
15 posts
#7
Worst
14 posts
#8
Struggling
13 posts
#9
Hate
13 posts
#10
Looking For A Book
11 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
Original Content
: "Shai-Hulud (Pre-2021 movie artwork, inspired by 90s games) [OC]"
48 posts
#2
Recommendations
: "Funny & Offbeat Sci‑Fi Recs (My Short List)"
42 posts
#3
General
: "Is there a pattern that determines military spaceship doctrine in real life and sci-fi?"
22 posts
#4
Films
: "David Lynch’s Dune is a great movie and aged very well."
20 posts
#5
TV
: "Gargoyles might mostly be known as a gothic fantasy superhero show but also has some pretty good sci-fi."
16 posts
#6
Print
: "My Review about Death's end book"
16 posts
#7
Community
: "Rod Serling once wrote: "The writer’s role is to be a menacer of the public’s conscience, he must have a position, a point of view. He must see the arts as a vehicle of social criticism and he must focus the issues of his time.”"
4 posts
#8
Art
: "Having some fun recreating a scene from Aliens. Definitely some technical issues but challenged myself a wee bit. Pentel GraphGear 1000, Kuretake pens, Copics, and GellyRoll pens."
4 posts
#9
ID This
: "Question about This Sci Fi Mount Rushmore"
4 posts
#10
Games
: "I’m working on a strange atmosphere and gravity manipulation in my game, Fallgrade."
2 posts
Member Growth in r/scifi
Yearly
+58k members(1.3%)
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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: June 29, 2026