Undergame is an AU of undertale where humans known as bio humans where sealed to the Underground because of strange and life threatening powers they had where sealed to the underground by a magic spell and created the barrier only six humans souls could break the barrier blah blah blah you already know the rest of the story but this time something different happened.

In this game you play as Frisk from Undertake who found a strange portal and got sucked in she thought she reset but later on meets Undergame Toriel who takes care of her but had to fight her in order to continue you know like most Undertake games and thats all the info that I mostly know about the game.

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