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- 51 Minecraft: Starting as an Undertale Judge 我的世界：从传说之下审判官开始 "System + Transmigration + Goofy Comedy" No characters getting dumbed down Yu Chen was a high school student when he suddenly transmigrated into Minecraft and became a skeleton. Little did he know that the world had already collapsed and the Outer Gods were stirring. How will he face the invasion? 72Reads—Score1414d adds
- 52 Bocchi the Rock!: Rocking No Longer Alone 孤独摇滚：不再【孤独】的摇滚 [Bocchi the Rock! AU] [Single female lead] [Lighthearted daily life] [Obsessive and unhinged] [Pure romance] Gotoh Hitori is the sole female lead, and for various reasons there’s a love triangle? (You’ll find out later.) This story involves parallel worlds. If anything is unclear, I’ll answer questions as long as doing so doesn’t spoil the story. This is a story about a love-starved, lonely madwoman who gives a lonely girl her unconditional devotion. Loneliness is one person’s feast, one person’ 9Reads—Score—14d adds
- 53 Beneath the Surface: Monsters or Humans? 地底之下，怪物还是人类 A fanfic inspired by Undertale and its derivative works. It tells the story of a human whose parents were killed by monsters. After climbing the mountain, he falls into the Underground, where his story begins... —Reads—Score—14d adds
- 54 Being the Brightest Star Every Day 日常做最亮的仔 Also known as My Little Sister Became a Little Bun One Day [Note: UT fanfiction + OOC warning + family-focused + lots of original headcanons + no CP + mostly everyday life + short story] … … What happens after someone dies of sudden cardiac arrest? "You start out as a ball of light, get two older brothers as a bonus, and have a natural talent for magic." Stars pushed up a pair of nonexistent glasses and answered with feigned solemnity. Beneath the peaceful years, what lies hidden? A treasure and 107Reads—Score—14d adds
- 55 Publishing Undertale in Deltarune 在三角符文中发布传说之下 On a timeline where no one discovered the Dark Fountain, the legends buried underground have begun to surface. The key members are here, and a legendary story is about to unfold on a computer screen. 1kReads—Score10414d adds
- 56 Undertale: The Journey of Determination 传说之下：决心的旅途 The title is also known as [Undertale: Embers of the Past] [Breaking the fourth wall] [No female lead] [Slow-paced!!!] [System] [Everyday life and battles] The protagonist may be a little crazy (the System barely appears in the very early chapters) Updates every one to three days, and at least once a week (the author is a lazy dog) Even if you haven't played or watched Undertale, it won't affect your enjoyment of this book (because the plot, power system, and so on will be heavily changed) There 6Reads—Score—14d adds
- 57 The Fall of Twilight: Beneath the Aurora 暮色之陨：极光之下 Maybe... if the war had never broken out back then, we would have had better lives. When the aurora blankets the world and monsters endure their days in pain, who will step forward to change everything? No... It's all in vain. When the last bit of warmth vanishes from the midst of malice, revenge can no longer be held back. With golden light by their side, is it a blessing or an ill omen? And behind the or 105Reads—Score—14d adds
- 58 UT Fanfiction: The Golden Legend UT同人：黄金传说 Frisk accidentally falls into the Underground. Just as she thinks she is about to meet her end, she gets help, but the one who comes to her aid is a monster from legend. An Undertale fanfic with an original AU. Sans x Frisk. The AU is called Gold Tale. Updates are irregular, but it will never be abandoned. 21Reads—Score—14d adds
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59
Undertale: Sans in the Apocalypse 传说之下：末世中的Sans
Told mainly from Sans's perspective. Zombie apocalypse. No overwhelming combat strength [probably]. A System is present. Not a mindless power fantasy, so readers will need to use their heads. Please check the warnings before reading. In the False Pacifist route, led by Frisk, the monsters emerge from the barrier and integrate into human society in almost the best way possible. “Monsters” become a special class of citizens in the country. But happiness is always fragile, and after this strange pl
263Reads8.7Score—14d adds
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60
A Monster from Undertale: Sans 来自传说之下的怪物：sans
After arriving in the Undertale timeline and becoming Sans, he gains the power of Causality Code and puts a stop to the player’s genocide run. He goes to the surface with Frisk and the others, only to discover that human scientists have also begun researching “soulology.” The source of it all is the anomaly caused by that player. But Sans has no intention of taking on a whole skeleton-load of trouble. Still, one thing after another comes his way, and Sans catches sight of versions of himself fro
661Reads—Score10014d adds
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61
Legends of Dust: Pale Divine Miracle 尘埃传说：苍白神迹
After countless massacres, Sans could no longer bear to watch his companions die before his eyes, so he began resorting to extreme measures. Unfortunately, none of them ever worked. This despairing situation went on for who knew how long. Just as he thought it would continue forever… An unimaginably great being opened its eyes and looked upon this world. (This is the author’s second book. The quality may have improved a little, but please don’t get your hopes up too much, as the author’s writing
265Reads—Score—14d adds
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- 62 I Transmigrated into Undertale and Got a Sans Chat Group 穿越ut，我获得sans聊天群 Su He transmigrates into UT and gets a Sans chat group. From the start, he elbows humans and helps Murder. He repairs Core and saves Horror. He kicks XGaster and goes all out against Nightmare. Then he looks up, and the multiverse is at peace. “Just lucky, that's all. Pure luck,” Su He says. (The blurb's not doing this story justice. To find out what happens, head to the main text.) (New author, new book. My writing is still rough, so please go easy on me.) 2.8kReads—Score22414d adds
- 63 Beast Taming: Together with My Bone Brothers 御兽：和骨兄弟一起 [UT + Sans + Papyrus + All UT Characters + AU + Legally Cat-Eared Shota + Beast Taming + Everyday Life + All Original Undertale Characters] Mostly sweet, with a little angst. A complicated mix. No female lead doesn’t mean no CP, right? The CP in this book is Lin He and Chara (“split self”). This book is mostly everyday life, though things get crazy sometimes. Lin He was an ordinary high school student. While playing an Undertale fan game, his keyboard started malfunctioning, his blood pres 91Reads—Score—14d adds
- 64 Undertale: A Heavy Redemption 传说之下：沉重的救赎 (If you don’t like it, you don’t have to read it. This novel won’t include pairings from other AU fan works. No donations from minors, and no malicious reporting. Say no to online harassment.)(And thanks to everyone still reading my novel. This book is my way of making it up to you.) Fake simulation + multiple female leads + slightly yandere + angst + redemption + harem + a little OOC Note: No NTR + canon pairings will not be broken up. My name is Meng Chen. Three years ago, I accidentally trans 1.5kReads—Score15514d adds
- 65 UT: What If the Pacifist Route Is a Trap? UT：如果和平线是陷阱 [Undertale fanfiction AU] [Frisk x Chara, female leads, Frisk first and Chara second] "I thought this was just a game, until I fell from the sky." Yan transmigrated into the world of UT, knowing everything about it. He planned to complete the Pacifist Route, save everyone, and then leave. But he discovered that Frisk was trapped in countless loops on the Neutral Route, so numb that even resetting had become mere muscle memory. And Chara, who had been lurking inside her all along as a "narrator," 89Reads—Score—14d adds
- 66 Undertale: What Do You Mean I Turned Into a TV? 传说之下：什么叫我变成电视了？ (You don't need to know the games this work is based on, but it does contain spoilers. If you haven't played the original games, we recommend trying them before reading.) (Don't ask why it's listed under UT, because UT is more popular than DR.) Undertale + Deltarune + Multiverse + No CP + Tenna Wize, an international student studying abroad, was hit and sent flying by a mysterious truck on his way home. When he opened his eyes again, he found himself transformed into a CRT television and transmi 180Reads—Score—14d adds
- 67 If Chara and Asrie Left the Underground 假如猹和Asrie离开了地下 This book is about Asriel and Chara leaving the Underground, and is filled with fantasies I had as a child. It features classic AU characters such as "Clover" and "Dusttale." If that sounds like your kind of thing, give it a read. More details about the setting can be found in Chapter 0. 6Reads—Score—14d adds
- 68 Undertale: Original Version 传说之下：原版 This is a world where humans and monsters coexist. Disputes between the two races gradually escalated into war, and the monsters were banished underground by humans many years ago. Years later, a human child accidentally fell into the underground world. Their determination made them fearless in the face of death. What began as self-defense turned into a merciless slaughter. Can Frisk make it back to the surface...? 49Reads—Score—14d adds
- 69 National Fate: But Xiaohua 国运：但是小花 Undertale, UT, national destiny, no female lead, no CP, Flowey, AU, revealing the past. No transmigration, no System. A fanwork based on the original, set on a special timeline. As you can see, the protagonist of this story is Flowey, or rather, Asriel. Flowey's characterization will stick as closely to the original as possible. There will be AU cameos. I'll try to follow the original settings for the AUs, but there are too many of them, so anything that differs from canon can be treated as my o 381Reads6.9Score—14d adds
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70
Undertale Fanfic: A Few Things About a Certain Parallel Universe UT同人：某平行宇宙的那点事
[Everyone is humanized + tons of headcanons + multiple pairings and everyday life] (This is my first time writing a book, so please bear with me.) (Please don’t get too attached to the original characters, or they’re guaranteed to go out of character.) As you can see, the characters in this somewhat strange Undertale AU have all been turned into humans. There are no bone-filled brawls across the multiverse here, just a simple, peaceful daily life, with the occasional little trouble cropping
108Reads—Score1014d adds
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- 71 The Business of Bone and Shell 骨壳商途 The Underground Sales Pitch of a Skeleton In this Undertale AU, [Legendary Salesman of 1997] Spamton swaps [bodies] with a [skeleton], but instead of landing in trouble, he smells [the opportunity of a lifetime]. He chooses the fiery [skeleton brothers] as his partners, repackages his obsession with [capturing humans] as a business venture, and starts preparing a [Human-Capturing Training Camp]. He turns the [spaghetti stand] into a storefront and promotes his own brand. With absurd marketing, 42Reads—Score—14d adds
- 72 Undertale: Dust's Search for His Bro 传说之下Dust劳弟的寻哥记 [Undertale + OC + multiverse] Pure fanfiction. Where it differs from the original, please treat it as my own interpretation. Apologies for any out-of-character moments. Mostly slice-of-life and battles, with pairings and crossovers. The characters may not be very well developed in this first book. 309Reads—Score—14d adds
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73
National Fate: From the Start, I Play Frisk 国运：开局扮演Frisk
Wu Wo transmigrates and is bound to the “Roleplay System,” playing Frisk from the start... (You can think of Frisk as a child who can reset and save.) The author has other novels too, so feel free to check them out if you're interested. Hey, handsome guys and beautiful girls who know or don't know UT, come check out this novel! The national destiny game has all kinds of dungeons, including rule-based horror, the supernatural, science fiction, fantasy, magic, and more. The human team you'
57Reads—Score—14d adds
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- 74 Transmigrating to Another World: From the Start, I Transform into Sans 穿越异界：开局变身sans The protagonist has multiple Systems. The national destiny game has no negative bullet comments. (The author has other books too, so feel free to check them out if you're interested.) Current storylines: transitional world (Volume 1 complete), national destiny forbidden zone (Volume 2 complete), breaking Lord Zoffy's Ultra Key, and tricking Beta Spark into the hands of Ryu Aihara (Volume 3 in progress). Ideas being considered: transforming into the original Ultraman in another world and fighting 36Reads—Score—14d adds
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75
Undertale: National Destiny and Runes 传说之下：国运与符文
(UT + DR + National Destiny + watch-along + Sans) One day, National Destiny suddenly descends. In order to rescue the chosen Papyrus and Frisk, Sans is forced to go somewhere both “familiar” and “strange.”
27Reads—Score—14d adds
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- 76 Honkai: Star Rail: Sans Soul System 星铁：sans灵魂系统 “I'm immensely powerful because I have Sans.” “Why is there a Fu here?! “Why does she say she feels comfortable around me, and that she likes me?!” (Early on, there are prize draws; later, it gradually turns into a shop.) (Just so you know, I'm a new author, so there may be out-of-character moments, missed plot points, and other issues. I hope you'll be patient with me. I'll definitely get better as I go.) 58Reads—Score—14d adds
- 77 UT: From Minecraft to Undertale UT：从我的世界到传说之下 By chance, Ke Yimeng transmigrated into My World and obtained a Multiverse Panel. A mysterious person told him that they would explain how to use it five hundred years later. After enduring an incredibly difficult five hundred years, Ke Yimeng found that mysterious person and used the Multiverse Panel to travel to another world… (New author with limited ability. Please don’t flame me if it’s not to your taste.) 68Reads—Score—14d adds
- 78 A Diary of Life in Undertale 人在传说之下的生活日记 My name is Bai Mo. I just arrived in Undertale, and I am freaking out. What the heck, X Gaster? Good grief, the Four Sanses? And now a Soul Crystal? You're all so powerful, what am I supposed to do? Whatever, I'll just slack off! (No angst in the whole story) 155Reads—Score—14d adds
- 79 Undertale: Soul Swap 传说之下，灵魂转换 Also known as: Spark Legend [Undertale] [Lots of original worldbuilding] [Characters from multiple AUs appear] [Female lead: Betty] [True Hard Mode] Red, orange, yellow, green, blue, indigo, violet, gray, white, and black: ten souls in all. Oi, kid, have you ever seen a human who can switch between different soul traits? Today, the beast in human clothing Bai Ming has arrived! The barrier isn't the monsters' greatest seal. The true seal is a curse that resets whenever monsters reach the surface. 48Reads—Score—14d adds
- 80 Feather’s Half-Alive Feather的半死不活 [Undertale spinoff + my own OCs + Evilbone group + writing whatever] First off, this book is purely for fun, and I can't promise regular updates. It's lighthearted, has no romance, though there may be platonic relationships. The story moves along pretty quickly. I'm not good at writing introductions, so please read the book. * This book has a mountain of headcanons. * Nightmare in this book will have fewer elements from the official canon (the canon is trash, so I'm not using it. I just like evi 124Reads—Score2014d adds
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81
Undertale: She’s Not the Protagonist 传说之下：她不是主角
[Transmigration] [No Romance] [Ensemble Cast] [Everyone Is Strong] [A Little Golden Finger System, Redemption, and Wild Ideas] [Antagonist] [Slow-Paced and Lighthearted at First, Then a Transitional Middle] [Happy Ending] A lot of UT players transmigrated into this UT multiverse, a place that seemed peaceful on the surface but was actually rife with undercurrents... Narrator: *Among the people working to protect the peace of the universe, there is a hidden killer with the employee number 103. At
96Reads—Score—14d adds
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82
Undertale: Links of Hope 传说之下：希望的链接
“If you could start over and do the same thing again and again, would it mean anything?” “I don't know... I don't know if I still have the passion to do this.” “I just think it's fun...” “Tch... I think you just want attention...” “You!”
3Reads—Score—14d adds
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