Oct 10, 2017 · Fellswap (also known as Fellswap Gold) is a combination between Underfell and Underswap (Underfell Swapped, rather than Underswap Fell-ified like Swapfell).

I chose the name FellswapX due to my love of the original concept of Fellswap, despite the fact many Swap + Fell AUs exist. The AU will focus around the cold war between monsters and human and the …

...is an Undertale fangame, based off the FellSwap AU (created by blackggggum/Jot). It is an original take with it's own plot, character designs, original characters, and soundtrack.

MAJOR CORRECTION: Jotland is the name of their tumblr blog, their name is supposed to be Jotman!

Fellswap (also known as Fellswap Gold) is a combination between Underfell and Underswap (Underfell Swapped, rather than Underswap Fell-ified like Swapfell). It is set in the Cold-War era of the 20th …

Sep 8, 2025 · Fellswap (sometimes stylized as FELL+SWAP) is an AU that started out with a one-off sketch of Fellswap Papyrus, [1] and eventually was expanded into a full concept.

Fellswap 2020, also known as Canon Fellswap, is an AU of Underfell where the roles are swapped, but neither the personalities nor the appearances, although they are minorly changed to fit their roles.

※The AU designing is based on the swap version of underfell. ※Skelebros will use the new design from 2018 ※Story&Arts belongs to @blackggggum ※This blog mainly posts the comic story and …