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Surviving a Nightmare by
Sky's Limit5 reviews
It's been almost three years since Frisk had come through the Underground and disappeared. Undyne has taken up the task of continuing what Asgore had started. Two siblings fall into the Underground, and must make their way through a now-militarized world.
Undertale - Rated: T - English - Family/Angst - Chapters: 25 - Words: 27,529 - Reviews: 79 - Favs: 32 - Follows: 41 - Updated: 8/4/2018 - Published: 4/18/2016 - OC, Papyrus, Sans, Undyne
Adopted Promise! by
Mozart's Fantasy reviews
Sans thought he'd lost one of the people he cared about most when Frisk gave her own life to stop Chara. As he sat there, rocking the child's still form, he made a promise... one that he'd do anything to keep. Then, a tiny skeleton baby with wispy, brown hair gives him the chance to make things right and Sans comes to learn the joys and pains of being a father to his little girl.
Undertale - Rated: T - English - Family/Hurt/Comfort - Chapters: 37 - Words: 182,926 - Reviews: 352 - Favs: 429 - Follows: 419 - Updated: 8/3/2018 - Published: 3/30/2016 - Frisk, Papyrus, Sans - Complete
ParentTale by
Life-with-Lemons and Gamera reviews
After their sons birth, Frisk and Sans are determined to be the best parents there ever was. However, raising a skeleton could be more then they bargained for. Follow them as they battle potty training, evil closet monsters, and the diabolical PTA meetings. Fluff warning, so fluff, much fluff. Some swearing.
Undertale - Rated: T - English - Family - Chapters: 25 - Words: 73,056 - Reviews: 198 - Favs: 144 - Follows: 158 - Updated: 7/11/2018 - Published: 4/12/2016 - [Frisk, Sans]
UnderHierarchy: Sans and Papyrus's Meeting by
FanGirlStephie reviews
This is an introduction/ origin story about my au UnderHierarchy. Where a monster's stats means everything. And Sans is the unlucky one at the very bottom with a stat of 1. Papyrus is his new master and now Sans needs to get used to this new life. But maybe it's not as bad as he assumes it will be? NOW COMPLETE
Undertale - Rated: T - English - Hurt/Comfort/Drama - Chapters: 12 - Words: 20,479 - Reviews: 21 - Favs: 24 - Follows: 24 - Updated: 12/15/2017 - Published: 3/22/2017 - Papyrus, Sans - Complete
History by
StarRoseColors reviews
For years, Aliza has wondered about her real family. Now a clue in an old picture, the only thing left of her mother, finds Aliza climbing Mt. Ebott. In this twisted new world, she finds herself a pawn of a demon.
Undertale - Rated: T - English - Romance/Horror - Chapters: 31 - Words: 8,165 - Reviews: 44 - Favs: 33 - Follows: 39 - Updated: 9/14/2017 - Published: 3/31/2017 - [Frisk, Sans] Chara, Flowey
Missing Sans by
NotAWerewolf reviews
Sans has been missing for four years, and when his friends finally find him, he's made his home in the forest, caring for his adoptive human daughter Frisk. Papyrus has lost his happiness. Undyne still wants the human soul. Alphys can't understand. Will this broken family be able to recover?
Undertale - Rated: T - English - Family/Hurt/Comfort - Chapters: 9 - Words: 7,814 - Reviews: 34 - Favs: 59 - Follows: 58 - Updated: 9/6/2017 - Published: 7/4/2017 - Frisk, Papyrus, Sans
Guardian Of Bones by
RavensWriting reviews
Danger threatens the skeletons and all the alternate universes! They quickly realized that they need help. And who better to get than you, the reader! Join the Undertale's skeleton duo and their alternate selves on this journey of saving the world, they are relying on you (Your going to go through hell and back, but be rewarded with fun and skeleton lovers! I hope you like cliffs)
Undertale - Rated: T - English - Romance/Humor - Chapters: 37 - Words: 63,705 - Reviews: 45 - Favs: 35 - Follows: 29 - Updated: 8/23/2017 - Published: 4/12/2017 - Frisk, Papyrus, Sans, Chara
Just a Stranger by
PetalThorn reviews
After falling to what appeared to be a Genocidal Human, Sans awakes to a timeline where the child hasn't harmed a soul. However, Sans is quick to learn that this is a timeline where he never existed, and no one knows him-not even Papyrus. Surrounded by familiar faces, he knows their names, and all their little quirks, but to them... He's Just a Stranger.
Undertale - Rated: T - English - Drama/Hurt/Comfort - Chapters: 18 - Words: 49,897 - Reviews: 81 - Favs: 63 - Follows: 72 - Updated: 7/16/2017 - Published: 6/9/2017
Stay Determined, Sans by
TheSupernova reviews
Sans is tired of this. The human comes, the human kills, the human resets. How many times now has it ended in genocide? Finally, Sans is taking matters into his own hands. He absorbs the human's determination, intent on ending their life once and for all, but gets more than he bargained for. Now Sans holds the power to reset, and the power to change it all. Daily updates.
Undertale - Rated: T - English - Angst - Chapters: 32 - Words: 48,096 - Reviews: 127 - Favs: 124 - Follows: 67 - Updated: 7/3/2017 - Published: 6/19/2017 - [Sans, Toriel] Frisk, Chara - Complete
Corrupted File Exe by
PetalThorn reviews
Frisk and the monsters have finally reached the surface, but it seems something is set on destroying the happy ending permanently. Frisk needs to learn to stand their ground when push comes to shove, and that you can't spare what doesn't want mercy.
Undertale - Rated: T - English - Supernatural/Hurt/Comfort - Chapters: 100 - Words: 307,332 - Reviews: 150 - Favs: 94 - Follows: 94 - Updated: 6/29/2017 - Published: 2/13/2016 - Complete
When We Were Young by
LittleTeenAuthor03 reviews
Young and brilliant, Damien has a knack for having a weird life. Partly because he's the son of the Ambassador, Frisk. Partly because he's weird in general. Who would want to hurt a hybrid like him? Actually... Who wouldn't want to hurt Damien?
Undertale - Rated: T - English - Family/Angst - Chapters: 5 - Words: 10,293 - Reviews: 2 - Favs: 5 - Follows: 6 - Updated: 5/17/2017 - Published: 10/26/2016 - [Frisk, Sans] Asriel, OC
Soul Manifesto by
KittenRainbow reviews
(AU) The war has passed. W.D. Gaster and his son Papyrus remain as the only living skeleton monsters in the Underground. As time passes, Gaster notices that Papyrus is becoming lonely and saddened. He then becomes driven to complete his greatest science experiment yet - giving Papyrus a brother to call his own. But is it easier said than done? Please read and review!
Undertale - Rated: T - English - Family/Sci-Fi - Chapters: 9 - Words: 16,418 - Reviews: 15 - Favs: 56 - Follows: 60 - Updated: 4/29/2017 - Published: 3/6/2016 - Papyrus, Sans, Asgore D., Gaster
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Monster
They will fight back.
Undertale - Rated: T - English - Hurt/Comfort - Chapters: 1 - Words: 1,043 - Favs: 1 - Follows: 1 - Published: 10/22/2017 - Frisk, Sans, Chara
Dust Has Fallen (REWRITTEN) reviews
Dust falls in the air...
Undertale - Rated: T - English - Tragedy/Hurt/Comfort - Chapters: 5 - Words: 6,548 - Reviews: 4 - Favs: 5 - Follows: 2 - Updated: 10/4/2017 - Published: 8/28/2017 - Frisk, Sans, Chara, Gaster