Undertale
17 stories
Undertale: Twin sister by The_twins_of_hearts
The_twins_of_hearts
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After Frisk goes missing, Caitlin, Frisk's twin sister goes looking for her in the the last place she saw her. MT Ebott, the mountain of dark legends, she finds a necklace that belonged to Frisk on the ground. Just like Frisk, Caitlin tripped and fell into the Underground. Caitlin finds things she never knew existed.
Underfalls: The COMPLETE Trilogy To A Gravity Falls/ Undertale Crossover by PixaneFangurl510
PixaneFangurl510
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The tale of how two twins from Gravity Falls, Oregon fall down Mt. Ebbot, and experience what most other humans have never seen before, and now, all three books are in one place! DISCLAIMER: I DO NOT OWN GRAVITY FALLS OR UNDERTALE, ONLY MY IDEAS AND PLOT TO THIS FANFICTION. THANK YOU
The Return of Gaster (Gaster Blaster Sans) by grubgo
grubgo
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[[UNDERTALE SPOILERS!!]] After frisk had done the pacifist run many times, something gone wrong... Flowey never showed up in the end. So frisk lived in the underground with their friends and they never came to the surface. But what had happend with flowey? Why is sans acting so strange all of a sudden? Why does frisk se a mysterious man sometimes? Find out by reading the book. The picture was created by @whatisthisshit1111
A Name to Remember (Undertale) by ANinnyMouse42
ANinnyMouse42
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~o0o~ Book 2 of the "Better Times" trilogy ~o0o~ (Book one: "The Time Before") (Book three: "No One is Happy with This") Ah. Hello there. You are here in search of a story? ... I could tell you a story of a family, reunited once more, living on the surface world. But such a story has not come to pass, nor do I know how such a story would come to pass. So I will not tell that story. I could tell you the story of how I came to be here, stuck in the black depths of nothingness. But, I have the distinct sense that this story has already been told, by hands not my own. So I will not tell that story. I could tell you a forgotten story. A story of a name long gone, a time erased eternities ago. ... Yes, this one, I think, is the story I will tell. For the name that was once my own, the name that has been lost to the Void, that is a name to remember. Dr. WD Gaster is a Name to Remember.
Lost in Despair (Lonely!Sans x Mute!Reader) by GamerQueen2002
GamerQueen2002
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Press your fingers together, zip your lips shut, and throw away the key. Once it's time to be free, go fetch that golden key and speak. Unless someone stole your golden key and threw it in the depths of the Black Sea; your nightmares and worst fears. ---- "Even if it kills me a second time." ---- The series- First book: "Lost in Despair" -Finished Second book: "No More Time" -Currently writing Third book: "Can't Hang On" -Work in progress
I Never Meant by justmaxingoutourplot
justmaxingoutourplot
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I never meant to fall in love. I never meant to have children. I never meant to become involved in a war. I never meant to lose people I love. I never meant to let us be thrown down here. I never meant to become the royal scientist. I never meant to do lots of things in life. But I always meant to live.
The Choice (Undertale Fanfiction: Edited Version) by introverted-actress
introverted-actress
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**ON HIATUS** "The game is yours now." ~~~~~~~~~~~~~~~~~~~~~ Many have heard the story of Chara, the first fallen human, but none know the truth behind it, or the story that follows. In another timeline, in a world where anything's possible, so long as the puppet master pulls the correct strings, we can learn about who this fallen child is and how they can change an entire game. ~~~~~~~~~~~~~~~~~~~~~~ When Frisk, a human from the surface world, fell down into the Underground, they had no idea what they were getting themself into. Chara, the first fallen human, had returned from the dead. Now Chara, filled with hatred at humans, roams the Underground gaining LV and EXP by killing monsters, with hopes to erase all of humanity from existence. Can Frisk manage to return to the surface and save the Underground? Or will Chara successfully receive the vengeance they wish upon humanity? (Cover art is not mine.)
Undertale Shorts by ANinnyMouse42
ANinnyMouse42
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A bunch of Undertale short stories! ... Which, despite the cover, are not only about Frisk, Flowey, Alphys, and Sans. There are other characters in there too. Aww, who'm I kidding? Probably 90% of this is skelefam fluff 'n' feels.
Underfalls (Gravity Falls/Undertale Crossover) DISCONTINUED by Random_Usr125
Random_Usr125
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What if Chara and Frisk get stuck in Gravity Falls? Just read for explanation.
No One is Happy with This (Undertale) by ANinnyMouse42
ANinnyMouse42
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~o0o~ Book 3 of the "Better Times" trilogy ~o0o~ (Book one: "The Time Before") (Book two: "A Name to Remember") Two years after the Barrier was destroyed, it's a dark and stormy night. A group of friends; six monsters, one human, and one flower, celebrate the anniversary of the monsters' freedom. Everything starts off with a seemingly innocent question: "What does the thunder remind you of?" But the answer only leads to more questions. Questions born of curiosity. Curiosity killed the cat. And it's a hard learned lesson that Determination can't always bring everything back.