HORRORTALE AU for UNDERTALE - SANS is a fan game developed by PASGALZ that offers a unique twist on the popular Horrortale game. In this game, you play as Sans and collect artifacts while walking through the dark corridors of the Undertale fan game. The game is constantly being developed, with more interesting details being added over time to provide a better experience for players.

The game offers a range of features, including the ability to collect pieces of spells and remove them, control your favorite hero (Sans), arrange bat time and hide in the closet, and set records for passing. Players are challenged to survive in the amazing world of Horrortale, help their favorite heroes overcome obstacles, and survive in this fun and scary game. However, they must also be careful not to get caught by Napstablook, who has turned all the characters into evil beings.