The category page for one the big 3. Underswap is one of the most well known AUs, along with Underfell and Outertale. It was the 1st switch up AU. This is for characters.

Pages in category "Underswap"

The following 3 pages are in this category, out of 3 total.

Media in category "Underswap"

This category contains only the following file.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.