r/MST3K↗
A subreddit for discussion of all things related to Mystery Science Theater 3000.
77k subscribers753 posts / mo in Sep 2026 (incl. <1% by known bots)452 authors / mosince 2008
r/MST3K has 77k members (+13% over the last 12 months). It gets about 753 posts a month from 452 people. Top topics: Horror Movie Humor, Finding Episodes and Kickstarter Games Updates.
When to post on r/MST3K
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How r/MST3K has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/MST3K
Top topics
Share of the subreddit's posts
- Horror Movie Humor2.1%
- Finding Episodes0.3%
- Kickstarter Games Updates0.2%
- Watch Episodes0.2%
- Finding Episodes0.2%
Brands people mention
Most-mentioned brands and sites, last 12 months
- IMDb
- RiffTrax
- Twitch
- Bluesky Social
- ProBoards
Everything else about r/MST3K
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research