395 posts analyzed Updated Aug 2026
Averages 13 posts/day, top 25% activity. Most active Mondays around 10 AM UTC. Mostly text posts.
r/sciencefiction Traffic & Engagement r/sciencefiction Traffic & Engagement
Volume and engagement over time Posting volume and engagement over time
Post Format
Upvote Distribution
How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.
r/sciencefiction Most Active Times When r/sciencefiction Is Most Active
Peak posting by day and hour (UTC) When this community posts most, by day and hour (UTC)
Most Active by Day
r/sciencefiction Flair Performance r/sciencefiction Flair Performance
Upvotes and volume by flair Average upvotes and post volume by flair
This subreddit doesn't use post flairs.
No flaired posts were found in this month's data.
Post Type Breakdown
Share by text, image, or link Share of posts by format: text, image, or link
r/sciencefiction Trending Keywords Trending Keywords in r/sciencefiction
Ranked by how often they appear Title keywords ranked by how often they appear
| Keyword | Mentions ▼ | Upvotes | Comments |
|---|---|---|---|
| sci | 45 (11.4%) | 67 | 10 |
| time | 21 (5.3%) | 2 | 5 |
| book | 20 (5.1%) | 54 | 79 |
| alien | 19 (4.8%) | 59 | 16 |
| day | 19 (4.8%) | 3 | 3 |
| story | 18 (4.6%) | 8 | 1 |
| first | 18 (4.6%) | 201 | 71 |
| novel | 17 (4.3%) | 5 | 9 |
| fiction | 14 (3.5%) | 2 | 7 |
| august | 14 (3.5%) | 11 | 2 |
r/sciencefiction Mentioned Domains Mentioned Domains in r/sciencefiction
Most linked sites Most linked sites in this subreddit
| Domain | Links | Upvotes |
|---|---|---|
| youtube.com | 16 | 17 |
| youtu.be | 13 | 2 |
| amazon.com | 3 | 0 |
r/sciencefiction Top Posts Top Performing Posts in r/sciencefiction
Highest-performing posts Highest-performing posts. Each title links to Reddit.
Gunbuster is the first sci-fi animation I've ever see portray accurate extreme-range combat, with Laser weaponry Firing on Targets 1.8 Light-Seconds away (540,000km) taking 3.6 seconds for the hits to be confirmed.
from Gunbuster, this cool scene showing 2 ships passing each other with a Relative Velocity of Near-Lightspeed, depicting the blaze of Blueshifted and Redshifted light.
Something similar to "The Expanse"?
Another part of our childhoods gone. R.I.P. Jon Cypher💔⚔️
Ah, to be a beautiful alien
What book deserves a second big screen adaptation because the first one didn’t capture what made it special?
The inward peace // Tribute to HR Giger & The Alien Franchise (Non-profit) // By me (NO AI!)
I have no mouth, and I must play DOOM
some of my own drawing!!
The first SciFi book you remember reading was…
r/sciencefiction Audience Overlap r/sciencefiction Subreddit Overlap & Related Communities
Overlapping audiences Communities with overlapping audiences
r/sciencefiction FAQ Frequently Asked Questions About r/sciencefiction
What's the best time to post on r/sciencefiction?
Based on posting volume, r/sciencefiction is most active on Mondays around 10 AM UTC. That window has the most community activity, but busier hours also mean more competition for attention.
How active is r/sciencefiction?
r/sciencefiction averages 13 posts per day and ranks in the top 25% for activity among tracked SFW subreddits.
How many upvotes do posts on r/sciencefiction get?
Posts on r/sciencefiction average about 33 upvotes this month (net score per post).
What kind of posts does r/sciencefiction get most?
On r/sciencefiction, posts are a mix of formats, mostly text posts