Undyne Stories

This story takes place after the events of the pacifist ending of Undertale, where all the monsters have already left the underground. However, that won't stop problems from starting again; Frisk and his friends will have to face a new threat. DISCLAIMER: This story is based on the fact that the first human fell underground in 2015 and the last in 2060. Here, Deltarune is a sequel to Undertale; therefore, Posttale is not a copy of TobyFox's creation, but an adaptation, or what is also called an "AU." Because of this, there will be things that are different from canon and adapted to my personal preference, with no intention of disrespecting anyone; for example, the gender of the humans: Kris: M Chara: F Frisk: M Don't like it? You can leave. Understood? Great. Contributors: @Fwrevy #Deltapad • Undertale and Deltarune are property of Toby Fox. • Images used in the story are property of their respective owners or made with AI. *#17 in the "Undertale" category 9/10/2026* *#3 in the "Deltarune" category 3/3/2026*

Có những ngày Underground không còn ngân vang tiếng gầm gừ hay dấu chân vội vã. Chỉ còn lại vệt nắng muộn len qua khe đá, phủ lên nhành hoa vàng một vạt sáng mênh mang. Người ta thường mải mê hướng mắt về những điều cao rộng, rồi vô tình bỏ quên một góc nhỏ lẻ loi trong tâm hồn. Ta quen dõi theo những ánh quang rực rỡ, mà quên mất rằng dưới khoảng trời riêng, mỗi cõi lòng đều là một nhân vật chính giữa khúc ca riêng mình. Chẳng có sự tồn tại nào là tàn dư vô nghĩa. Có những nỗi đau đã lắng lại thành phế tích, nhưng cũng có những mầm yêu thương vẫn âm thầm vươn lên từ tro tàn. Hãy thả mình xuống vạt hoa vàng êm ái, để lòng đất thì thầm vào tai những dịu dàng còn sót lại của chốn trần gian... ------------------------------------------ Bookcover: Offcial art trong Undertale.

Clover doesn't give up his soul because justice still needs to be delivered. The Wild East, and later practically the entire Dunes, declares independence. They declare that any human within their borders is under their protection. Civil War looms over the Underground. Would you like to see what happens? Note: This is NOT a story. This is an archive containing information about my AU, Desert Sanctuary. I might write a proper story in the future, but for now, this is where you can read about the narrative, the characters and how this massive change affects Frisk's journey. Fanart and other fan works based on Desert Sanctuary are welcome and encouraged

After Undyne sees Sans using his full strength on a surprise ambush, Sans gets forced into a promotion from Sentry to actual guardsman, still trying to do the bare minimum while Undyne forces him to give it his all. I don't have any money for commissions for the cover so I just gotta hope I hit it big and get fanart or we sticking with the Tumblr header that's not centred. Other than that uhh, credit me if you do anything with these guys in your work. Also isn't it kind of weird the only change I needed to make for this story to work is just to delay the time it takes for some of the humans to fall into the underground? Credits: Toby Fox, Temmie Chang and the Deltarune Dev Team: For making Undertale/Deltarune.

Following the aftermath of the Undertale pacifist run, something strange occurred. Frisk's ability to reset is gone, and odd occurrences happen, targeting Ebott city and beyond. Without the ability to reset, the entire world is on the line. However, one lost entity finds its purpose.

No sé, andaba medio dormido.

Hello. Yes i'm doing another one. Except this one might go a bit more slowly. ( Reminder: Frisk is 12 and Sans is around 13 or 14? ) But this will tell the story of Emotionless Frisk who falls into the underground. She meets monsters, talks to them and spares them. But when she meets Sans, a small skeleton, she begins to change as Sans tries to teach her emotions. But Is he really going to suceed while frisk keeps having these really strange nightmares... or are they really nightmares? ( lamest plot ever but yeah. If you easily get bored with relation ships that are slow, then i guess this isn't for you? ) ( Also this doesn't contain sin like lemons but it does contain pretty serious problems or a bit of things...well. But there might be alot of gore at some parts of the story. )

Obvious Disclaimer Warning!!! (Consider youself warned!) However Obvious, I'm pretty sure I'm obliged (by law) to do this. All rights for PJO/HoO go to Rick Riordan. All rights for Undertale go to Toby Fox (and tiny bit to Temmie Chang) Why I'm writing this book: For my own pleasure. Because I think this crossover would be great. I found none on Wattpad I suck at descriptions, but here goes. When Frisk loses control over the Timeline, everybody immediately knows something's up. Sans sets himself the task to locate one of the greatest heroes, and one of the most powerful beings, of all time. Percy Jackson. Will the new team be able to work together and defeat the rising threat, gaining new assets along the way, or will Percy struggle to get over the (slightly altered) Second Giant War, and Annabeth's death, and the Timeline fall to ruin? Find out, in this book.

Your favorite skeleton is back at it again... and again... agagaagaag Sans has had enough. Everyone is at the surface, holding their own jobs and lives. But... Sans can't ever let it fade from his mind. The dust. The cries. Watching the screen with Alphys as a child just rampaged in the underground. He is going to snap. He is mad. He is sad. He can never forget. Cover is NOT mine, find it online if you want ::Rights for the original concept and media 'Undertale' are all under the jurisdiction of Toby Fox. All other workings are done by me.::

A long time ago there was a war between humans and monsters. Everyone knows that story, but few know of an alternate reality where that war was only the first of many. After the monsters were forced underground, their world became a war-zone. Many years after the war, a tyrannical king runs the underground, completely disregarding his subjects and taking everything for himself. But the Underground is changing and soon, there will be an uprising. Begin: Summer 2017 Complete: ???

Mettaton is always viewed as the singing, popular robot of the UnderGround. But what ever happened to him when he arrived. (Set in Overworld and Underworld, my interpretation of what happened after the pacifist route ending.) Mettaton overhears a conversation between his so called friends, sending him spiraling down into a depression no one could cure. Can they save him? And if they can... Will they even try? Read to find out!

Tell me your ships please!

This Undertale fanfiction follows the lives of various members of the Monster gang.

This is going to stay up for archive reasons. I'm going to completely redo this story. (Original description below) ----- (Discontinuing this story because I no longer have interest in writing it.) Jack has always loved his home. But one day, his best friend says she's going to commit genocide on monsterkind, and he decides to go and find her. In the Undercity, lots of crazy things happen. He meets some humanoid goats, some ridonculous skeletons and their dad, an angry fish woman, a kind lizard lady, a couple of robots, a ghost DJ, a scorpion and an owl, and many more. He even meets a human living among the monsters! But when he finally finds his friend, will he be able to save her? Or die trying? The fate of monsters is in Jack's hands...

"heya, kid, after a while you gotta realize. this is all pointless. at some point someone's gonna 'judge' you" Sans snickered at his own joke. "truth be told, you cant sit here and act like... this can be forgiven by a reset. that everyone will forget. life ain't a game, bucko. the sooner you understand that, the sooner all of us can back to livin' life peacefully. this madness will stop eventually. we used to be friends... and if fightin' you will make you recognize this is all pointless..." Sans stops. The room goes eerily quiet as Frisk feels her sins crawling on her back. The wait is enough to kill. For a minute, it's as if every single thing in the underground held it's breath. Sans then speaks up. "its a beautiful day outside..." He states, sharply exhaling. Frisk and Chara are both female in this depiction of the famous 2015 hit game Undertale. (This is stated to avoid confusion or irritation.) Hope you enjoy. P.S read the tags to get a bit of knowledge about the story -discontinued-

forgive me lord for I don't know what I've created. (a collection of incorrect quotes) //Skits labeled by numbers starting from 1 and Oneshots labeled as Specials starting from 01// --similar as my Vocaloid Skit book--

undertale.. IN REAL LIFE!?

This is an Alphyne book, but it's HandPlates! Yeah, it's random. I know. I'll come up with a better description later. Cover not by me. Also, WattPad won't let me make more tags, which considering what I was gonna put *cough* I was going to talk shit about Gaster *cough* it was a reasonable decision. Highest Rank: 8 #BearWithMe

This is basically their life after the underground.. i think I have a problem bc of how much I ship them but me and my fren are going as them for Halloween so.. ya know

A girl with a very unique name enters a city of monsters. War between humans an monsters has started after the humans killed Frisk. This girl, her name is Fallen Demon, and she has a cold when she enters the city and begins living in a pharmacy. Monsters dont use it, and with no lower windows, it makes a great home. She takes madication to help her get better, and ventures out at night to get things to entertain herself, like books and food that isnt just snacks. She soon begins to be known amongst the monsters as the demon thief, which she finds funny due to her name. Gaster!Sans is sent after her, to find her and capture her alive, by Undyne. He goes to the abandoned pharmacy, and Fallen having heard him enter goes to hide. Sans stakes the place out, finding signs of someone living there. He checks everywhere, and is about to leave until he hears a cough. Of course he finds her. But things soon take a turn for the worst and it becomes uncertain as to whether the girl known as Fallen Demon will survive.