r/threebodyproblem↗
The Three-Body Problem
Anything and everything to do with Liu Cixin's award winning book 'The Three-Body Problem', and the 'Remembrance of Earth’s Past' trilogy.
94k subscribers151 posts / mo in Sep 2026127 authors / mosince 2014
r/threebodyproblem has 94k members (+15% over the last 12 months). It gets about 151 posts a month from 127 people. Top topics: Dark Forest Theory, Alien Themes & Theories and Books vs Show.
When to post on r/threebodyproblem
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How r/threebodyproblem has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/threebodyproblem
Top topics
Share of the subreddit's posts
- Dark Forest Theory24%
- Alien Themes & Theories3.6%
- Books vs Show1.4%
- Trilogy Discussions0.5%
- Xie Lian Hua Cheng Books0.4%
Brands people mention
Most-mentioned brands and sites, last 12 months
- What's on Netflix?
- Goodreads
- Bloomsbury Publishing
- arXiv.org e-Print archive
- bilibili.com
Everything else about r/threebodyproblem
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