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Enter any two safe-for-work communities. We’ll place their public descriptions, members, growth, topics and collected rule titles side by side — instantly, from data we already have.

r/writing vs r/worldbuilding

Side-by-side using public descriptions, members, growth and rule titles from SubMouse. Missing fields show as n/a. Adult communities are excluded.

Swap sides New comparison Related to r/writing Related to r/worldbuilding

Worldbuilding lore room vs writing craft room

r/worldbuilding’s public description invites artists, writers, gamemasters and others who create new worlds and universes. r/writing’s directory text is discussions about the writing craft.

In our directory, writing is larger (about 3.4M, rank #300) than worldbuilding (about 1.9M, rank #571). Activity samples show worldbuilding posting much more often (~95 posts/day vs ~15). worldbuilding’s sample mixes text with images, galleries and links and uses lore, question, discussion, visual, map and prompt flairs; writing’s sample is essentially all text with discussion, advice, beginner question and resource flairs.

Rule titles: worldbuilding requires worldbuilding context and DIY effort; writing limits posting work and self-promotion and wants thoughtful posts useful to a broad writer audience. SubMouse already compares writing with WritingPrompts and Screenwriting; this pair is specifically worldbuilding versus craft discussion.

  • Choose r/worldbuilding for lore, maps and invented-setting posts under its context and effort rules.
  • Choose r/writing for prose craft discussion under its thoughtful-post and limited self-promo rules.
  • Both sit outside the current Top 100 cut; writing-vs-writingprompts and writing-vs-screenwriting are separate curated pages.

Written comparison based on public descriptions and rule titles · updated 2026-11-07.

r/writing

Writing

Discussions about the writing craft.

Members
3.4M
7-day growth
+2K
Posts/day
15.3
Directory rank
#300
Created
Jan 25, 2008
Submissions
Text or links

Sample mix: text posts 100%

Topics: Writing

Rule titles (short names we collected)

  • Posting Work
  • Self-Promotion
  • Posts should be thoughtful and useful to a broad community of writers
  • Submission Calls Requirements/AMAs
  • Civility
  • Call-out threads and genre/literary-bashing

Open r/writing on SubMouse

About this community: r/writing (#300, about 3.4 million) discusses the writing craft—not a free dump for unsolicited manuscripts without following posting rules.

r/worldbuilding

Worldbuilding - Explore Every Impossibility

For artists, writers, gamemasters, musicians, programmers, philosophers and scientists alike! The creation of new worlds and new universes has long been a key element of speculative fiction, from the fantasy works of To…

Members
1.9M
7-day growth
+1.8K
Posts/day
94.9
Directory rank
#571
Created
Nov 23, 2009
Submissions
Text or links

Sample mix: text posts 52%, images 21%, galleries 18%

Rule titles (short names we collected)

  • Be kind to others and respect our purpose.
  • All posts should include worldbuilding context.
  • Put in some effort.
  • This is a DIY community.
  • We allow non-disruptive advertising.
  • The Full and Comprehensive List of Rules

Open r/worldbuilding on SubMouse

Supported differences

Aspectr/writingr/worldbuilding
Public focus (from each community’s public description) Discussions about the writing craft. For artists, writers, gamemasters, musicians, programmers, philosophers and scientists alike! The creation of new worlds and new universes has long been a key element of speculative fiction, from the fantasy works of To…
Size
r/writing is larger in our directory (about 1.8×).
 3.4M members 1.9M members
Posting activity (our sample) 15.3/day 94.9/day
Common post types in our sample text posts 100% text posts 52%, images 21%, galleries 18%
Topic tags on SubMouse Writing n/a
Selected rule titles (short names we collected) Posting Work; Self-Promotion; Posts should be thoughtful and useful to a broad community of writers; Submission Calls Requirements/AMAs; Civility Be kind to others and respect our purpose.; All posts should include worldbuilding context.; Put in some effort.; This is a DIY community.; We allow non-disruptive advertising.

Rules and posting patterns we can verify

worldbuilding short titles include: be kind to others and respect our purpose; all posts should include worldbuilding context; put in some effort; this is a DIY community; NSFW content requires special care; non-disruptive advertising allowed. Our sample flairs include lore, question, discussion, visual, map and prompt.

writing: posting work; self-promotion; posts should be thoughtful and useful to a broad community of writers; submission calls/AMAs; civility; call-out threads and genre/literary-bashing. Our sample flairs include discussion, advice, other, beginner question and resource.

Where this comparison comes from

Public descriptions and member counts from SubMouse’s safe-for-work directory. Short rule titles and activity samples SubMouse collected. Short titles only. Related curated pages: writing-vs-writingprompts, writing-vs-screenwriting.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and post-type mixes appear when we have an activity sample. Rule lines are short titles, not the full sidebar. Directory rank is listing order — communities outside the current Top 100 open in the info tool instead of a full community page.

Comparisons we prepared

Hand-written explanations for pairs where the public descriptions and rules support a real distinction: