r/sciencefiction
r/sciencefiction is a Science & Education community on Reddit with 310,769 members, ranking #97 of 2,165 in Science & Education. This reddit is for fans and creators of Science Fiction and related media in any form. SF topics should involve plausible ideas reached through the rational application of science. General speculative fiction posts are fine as long as they primarily focus on Science Fiction.
How big is r/sciencefiction?
Created in 2010, r/sciencefiction has had over a decade to grow and is a large community by Reddit standards. Within Science & Education it ranks #97 of 2,165 communities we track — the top 4.5% of the category by subscriber count. That puts it about 154× the median Science & Education subreddit, which has 2,019 members. It is a work-safe community with no 18+ flag on Reddit.
For scale, the largest Science & Education community we track is r/science with 34,470,477 members — roughly 111 times the size of r/sciencefiction. Reddit itself launched in 2005, so a subreddit created in 2010 sits in the early wave of community building on the platform. Subscriber counts indicate reach, not activity — a large community can be quiet, and a smaller one busy. Open r/sciencefiction on Reddit to see how often people actually post before deciding whether it is worth joining.
| Members | 310,769 |
|---|---|
| Category | Science & Education |
| Rank in category | #97 of 2,165 |
| Created | 2010 |
| Category median size | 2,019 members |
| Content rating | Work-safe (SFW) |
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Subscriber counts come from the public Reddit API and are refreshed when this directory is rebuilt. Redditory is not affiliated with Reddit Inc.