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Underswap is an Undertale AU which swaps characters. It was created by popcornpr1nce.

This wiki is for documenting original version of Underswap, as opposed to Underswap's fan-made versions and interpretations.

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!

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