Welcome to the Wiki
This wiki is for documenting original version of Underswap, as opposed to Underswap's fan-made versions and interpretations.
Please source any contributions you make! (use <ref> tags) That way, anyone can easily verify that the info here is canon.
You can find information about canon Underswap easily by using this research document.
Also check out the Canon Underfell wiki, which documents the canon version of Underfell, if you have time!