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r/UndertaleNSFW

This community is private, banned or no longer exists on Reddit. The numbers below are what we captured while it was public.

664.5K members. The best post we have captured here reached 53.7K upvotes, which works out to 81 per 1,000 members.

81peak upvotes per 1,000 members
664.5Kmembers
53.7Kbest post
4.2Kmost comments
1.4Kposts we track

Open r/Undertale on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

48% 18% 13% 11%
Image 48% Gallery 18% Text 13% Video 11% Question 6% Link 5%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

Original creation 349 Discussion 184 Question 177 Meme 140 Other 134 My meme art 107 Found creation 73 Gameplay 43 Theory 40 :deltarune:Deltarune Chapter 5 33

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Popetale

↑ 53.7K 💬 327 image 2025

found in a random bar in osaka

↑ 29.3K 💬 166 image 2025

A monster under my bed

↑ 26.5K 💬 348 gallery 2025

Mettaton knows their audience

↑ 23K 💬 152 gallery 2025

Ok I understand now

↑ 21K 💬 143 image 2025

Dress-coded

↑ 19.5K 💬 675 gallery 2025

The Mad Mew Mew fight has a funny implication

↑ 19.3K 💬 235 image 2025

(old comic) * my brother has a very special attack

↑ 18.9K 💬 264 gallery 2025

Just gonna leave this here

↑ 18.6K 💬 115 image 2025

anon has an observation

↑ 18.5K 💬 405 image 2025

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/Undertale, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

How many members does r/Undertale have?
r/Undertale has about 664.5K members. ViralHunt has tracked 1.4K of its posts; the biggest reached 53.7K upvotes, which is 81 per 1,000 members.
What is the most viral post on r/Undertale?
"Popetale" reached 53.7K upvotes and 327 comments in 2025, the highest score among the posts we hold from r/Undertale.
What subreddits are similar to r/Undertale?
Communities of a comparable size we track: r/popculture, r/ProgressiveHQ, r/Yosemite, r/StarWarsBattlefront, r/madisonwi, r/NoFilterNews.
What kind of posts do best on r/Undertale?
Of the posts we hold, 48% are image posts and 18% are gallery posts.
When is the best time to post on r/Undertale?
Across 1.4K timestamped posts we hold, the slots whose posts averaged the highest score are Thursday at 19:00 UTC (10.8K avg upvotes), Thursday at 14:00 UTC (6.7K avg upvotes), Friday at 11:00 UTC (6.6K avg upvotes). The busiest day is Monday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/Undertale?
The 20th-best post we hold from r/Undertale has 15.6K upvotes, so that is roughly the bar for the top twenty. We captured 342 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

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Every figure here is what ViralHunt has captured from r/Undertale, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.