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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/TrueCrime vs r/UnresolvedMysteries

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/TrueCrime Related to r/UnresolvedMysteries

True crime room vs unresolved mysteries room

r/TrueCrime’s longer public description was n/a in our snapshot; collected rule titles emphasize no personal information or suspect-naming, no glorifying criminals, and limits on memes and sensational titles. r/UnresolvedMysteries likewise had a thin public description in our snapshot; its rules focus on unresolved cases with posting and commenting guidelines and a bar on very recent murders/disappearances.

In our directory, UnresolvedMysteries is larger (about 4.5M, rank #206) than TrueCrime (about 3.4M, rank #307). Activity samples show UnresolvedMysteries posting more often (~9 posts/day vs ~4). TrueCrime’s sample mixes text with some images/video; UnresolvedMysteries’ sample is essentially all text with flairs such as update, disappearance, other crime, request and John/Jane Doe.

Rule titles underline the split: TrueCrime bans personal info/stories/suspect hints, glorifying violence, advertising and memes; UnresolvedMysteries requires staying on topic, blocks undocumented personal anecdotes as “mysteries,” and restricts cases from the past six months.

  • Choose r/TrueCrime for true-crime discussion under its no-doxxing and no-glorification rules.
  • Choose r/UnresolvedMysteries for open cases and unexplained events under its unresolved-case and recency rules.
  • Both sit outside the current Top 100 cut; neither is a place to investigate private individuals.

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

r/TrueCrime

No public description in our directory.

Members
3.4M
7-day growth
n/a
Posts/day
4.1
Directory rank
#307
Created
n/a
Submissions
Text or links

Sample mix: text posts 49%, images 26%, videos 15%

Topics: True Crime

Rule titles (short names we collected)

  • No personal information, personal stories, or indicating suspects.
  • Don't Glorify Criminals or Violence
  • No advertising
  • Respect other users
  • No memes
  • No dehumanizing speech or frontier justice
  • No video posts / self promotion
  • Text posts guidelines
  • Rule 9 - No sensationalist titles
  • Rule 10 - Off-topic/moralizing/misogyny/sexism/racism
  • Rule 11 - No missing persons posts

Open r/TrueCrime on SubMouse

About this community: r/TrueCrime (#307, about 3.4 million) discusses true crime (description empty). Rules ban personal info/personal stories/suspect-pointing, glorifying criminals/violence, ads, memes, dehumanizing speech/frontier justice, video/self-promo, sensational titles, off-topic moralizing/bigotry, and missing-persons posts; text guidelines apply. Text/Image (~4.1 ppd).

r/UnresolvedMysteries

No public description in our directory.

Members
4.5M
7-day growth
n/a
Posts/day
9.4
Directory rank
#206
Created
n/a
Submissions
Text posts

Sample mix: text posts 100%

Topics: Paranormal

Rule titles (short names we collected)

  • Stay on topic
  • Posting Guidelines
  • Commenting Guidelines
  • Name: No murder/disappearances from the past 6 months
  • Undocumented / personal / anecdotal "mysteries" are not allowed
  • User involvement in cases
  • Personal Information & Witchhunting
  • Updates, Meta-Threads and Reposts
  • Site-wide Rules and Reddiquette
  • Moderator's Discretion and how you can help us
  • No advertising.
  • Don't accuse persons cleared by LE or not officially named as suspects.

Open r/UnresolvedMysteries on SubMouse

About this community: r/UnresolvedMysteries (#206, about 4.5 million) is a rules-heavy true-crime/unresolved-case discussion room (catalogue title/description empty in this snapshot). Collected rules ban recent (past 6 months) murder/disappearance posts, undocumented personal/anecdotal “mysteries,” witchhunts/personal info, advertising, accusing cleared or unnamed people, and cut-and-paste dumps; claims should cite sources; stay on topic…

Supported differences

Aspectr/TrueCrimer/UnresolvedMysteries
Size
r/UnresolvedMysteries is larger in our directory.
 3.4M members 4.5M members
Posting activity (our sample) 4.1/day 9.4/day
Common post types in our sample text posts 49%, images 26%, videos 15% text posts 100%
Allowed submission type (meta) Text or links Text posts
Topic tags on SubMouse True Crime Paranormal
Selected rule titles (short names we collected) No personal information, personal stories, or indicating suspects.; Don't Glorify Criminals or Violence; No advertising; Respect other users; No memes Stay on topic; Posting Guidelines; Commenting Guidelines; Name: No murder/disappearances from the past 6 months; Undocumented / personal / anecdotal "mysteries" are not allowed

Rules and posting patterns we can verify

TrueCrime short titles include: no personal information, personal stories, or indicating suspects; don’t glorify criminals or violence; no advertising; respect other users; no memes; no dehumanizing speech or frontier justice; no video posts / self promotion; text posts guidelines; no sensationalist titles; off-topic/moralizing limits. Our sample mixes text with some images and video.

UnresolvedMysteries: stay on topic; posting guidelines; commenting guidelines; no murder/disappearances from the past 6 months; undocumented/personal/anecdotal “mysteries” not allowed; user involvement in cases; personal information and witchhunting; updates/meta/reposts. Our sample is text-forward with disappearance, update and Doe-style flairs.

Where this comparison comes from

Member counts from SubMouse’s safe-for-work directory (public descriptions were thin in our snapshot). Short rule titles and activity samples SubMouse collected. Short titles only.

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: