r/mysteryfiction is a subreddit with 4k members. The most common kinds of discussions are advice requests and ideas, and the community frequently discusses mystery, crime, detective, fiction, and mysteries, and they frequently recommend/review cozy mysteries and whodunnits.
A subreddit for all kinds of mystery & crime fiction. Any subgenre and any format is welcome as long as it's relevant.
Feel free to join the mystery fiction discord too! Link here:
https://discord.gg/jmmjcdzvFm
Popular Themes in r/mysteryfiction
#1
Advice Requests
: "What are your favorite mystery movies and why?"
14 posts
#2
Ideas
: "Created a mystery movie trivia quiz if anyone wants to play!"
3 posts
#3
Self-Promotion
: "Mystery author looking to build a community of readers for a new Substack newsletter"
3 posts
#4
Solution Requests
: "Seeking some good detective series"
1 post
Popular Topics in r/mysteryfiction
#1
Mystery
: "Poisoned Pen Press Will Become Sourcebooks’ Mystery Imprint"
41 posts
#2
Crime
: "The Best Sci-Fi Crime Novels of 2025"
18 posts
#3
Detective
: "What is the difference between a noir novels, a Detective novel and a spy novel?"
15 posts
#4
Fiction
12 posts
#5
Mysteries
: "What Mysteries have you been reading or watching? - June 2026"
8 posts
#6
Novel
: "More amazing Edward Gorey art, from the John Bellairs Novel The Dark Secret of Weatherend!"
7 posts
#7
Time Traveler
7 posts
#8
Books
: "Thoughts On New Books by Deceased Authors (Pastiches)"
6 posts
#9
Time Travel
6 posts
#10
Depredation
5 posts
Products Discussed in r/mysteryfiction
Cozy Mysteries
1 review
#1
Kathleen M. Cosgrove
4.0★ from 1 review
Whodunnits
1 review
#1
Cathy Ace
4.0★ from 1 review
Flair Used in r/mysteryfiction
#1
Discussion
: "What are your favorite mystery movies and why?"
28 posts
#2
Other
: "The Best Literary Crime Novels of 2024"
8 posts
#3
Question
: "Can institutions be the unreliable narrator?"
7 posts
#4
News
: "The Shrouded Omen"
5 posts
#5
Recommendation request
: "Recently written very well plotted mystery novels"
3 posts
Member Growth in r/mysteryfiction
Yearly
+478 members(13.8%)
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About
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Last updated: October 8, 2026