r/UndertaleAUs↗
the undertale Alternate universe discussion and compilation subreddit
Need something to fill the void after finishing Undertale? This is the place to find all the AU fanfiction and other such fanworks you will ever need.
9.3k subscribers1 posts / mo in Jun 20261 authors / mosince 2016
r/UndertaleAUs has 9.3k members. It gets about 1 posts a month from 1 people. Top topics: AU Creatives, Sans and Undertale Discussion and Undertale Discussions.
When to post on r/UndertaleAUs
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Share of the subreddit's posts
- AU Creatives13%
- Sans and Undertale Discussion5.5%
- Undertale Discussions4.5%
- AU Stories & Art3.7%
- Chara Characters & Concepts1.5%
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Posts and activity for Jun 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research