Steam Community :: Guide :: How To: Custom Save Files
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Undertale: 10 Things You Didn't Know About Sans
Multiple Save Files [Undertale Yellow] [Mods]
Stream UNDERTALE FINAL SAVE: Final Save V2 by AleAtorio3 | Listen online for free on SoundCloud
Video Game 'Undertale' Turns Five : NPR
Sans Undertale lore, boss fight, age, and more
Steam Community :: Guide :: How To: Custom Save Files
Not sure if someone's already posted this... In Undertale, we save in empty save file, and in Deltarune we save over Kris's. Any theories? : r/Undertale