1 - 20 of 37 Works in Monster Dog Gang (Undertale)
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But despite everything, it’s just me. After waking up in a strange place after they died, this reincarnated soul soon finds out that they awakened in Undertale, a game they became briefly obsessed with two years previous.
On the path to an unknown future, life, death, friends, and dogs with mysterious glowing artifacts, are some of the things they find on the way
However, after their shocking second death in this new life, they wake to find themselves alive again, this time as a skeleton.
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Infrequent updates
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The world spinning by Silksongisreal
Fandoms: Undertale (Video Game), Deltarune (Video Game), Toby Fox Creations
06 Nov 2025
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A normal day in the universes when... what do you mean there are two sans'? (The worlds combine)
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Devon searches for Frisk, one of the children he took care of with his colleagues until they suddenly dissappeared on an outing. He falls down a strange hole on Mount Ebott, unbeknownst to him coming closer and closer to reuniting with the one he was searching. But who or better yet what is that person who claims to have taken the child under her wing?
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You managed to escape being trapped underground after running into the forest when your parents died in the war. You were up on the surface from birth up until you were the human equivalent of 18. On your 1800th birthday, you escaped your abusive foster home to join the rest of your kind below Mt. Ebott.
I update very irregularly, I try my best but don’t expect updates every week. I tend to evaporate off the face of the Earth sometimes. It’s either that or you get 3 chapters in one day. Have fun reading!
(I hate slow burns, but this won’t be quick. There will be children and unusual anatomy because skeletons) -
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It’s ironic how one’s plan of goodness, a grand gesture of kindness; can become skewed by an outside view, tainted and seen as something vicious and menacing. So much so, the lines become blurred from right and wrong for a person who had only wanted to do only good. The public unable to view them as anything other than a corrupt villain. A person who wanted to save the world, not to burn it.
Well…Watching the world burn a little before putting the flames out, wouldn’t damn it any more than it already was…
(SWAPFELL! AU. SANS X FM! READER.)
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Sans smiled wide. "i mean.. y're already shirtl’ss." "..Uhm.." Sans walked over and stood infront of Grillby, before sliding down onto his knees and nuzzling softly against his crotch. "..Ah..!" Sans looked up.
Grillby's face was burning blue.
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sans and grillby go to his room and have sex pretty much -
An elder sibling by Lizardsinatrenchcoat
Fandoms: Undertale (Video Game), Original Work, Bleach
18 Jan 2024
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Geode is horrified at the abuse these monsters faced years ago, but that doesn't excuse child murder.
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You run away. You fall into a pit, and there are monsters at the bottom. They don't look like monsters should. They all have the same face. It makes you uncomfortabl
Series
- Part 52 of Two Steps To The Left, And a Long Fall
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the phone rang. Papyrus couldn’t hear it, he was too busy being fucked.
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After the Human and Monsters War, Monsterkind broke off into two groups. One decided to live harmoniously with humans on the surface world while the other decided to seek refuge underground and create their own society.
Papyrus and Sans grew up happily in the Underground, but their lives are changed when Gaster kidnaps Sans and escapes to the Surface. Years later, it is discovered that Sans is studying at a certain Monster college. And so, Papyrus is tasked to go on a hunt to find the two monsters and bring them back. However, how will he deal with his feelings about Sans and why is Gaster still unfound after all these years?
TLDR: Papyrus has to go to college to kidnap Sans
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You had forgotten what you used to be like before the war. Who you were before Sans.
You resigned yourself to dying like the rest of the rotting corpses on the battlefield, glorified title of the "Judge" nothing more than another meaningless name to be forgotten. Everyone you cared about was dead and gone, and Papyrus no longer looked you in the eye. You were ready for it to end in a blaze of glory.
You hadn't anticipated being caught in the crossfires of a malfunctioning machine, bringing you to an alternate, peaceful universe with other versions of yourselves.
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A group of oneshots and story excerpts about Sans having a bad time, all revolving around pregnancy/childbirth in some way. It gets very graphic and there is death in several of the stories. No one is okay.
There is occasional fluff though, so don't get too sad.
DO NOT READ IF YOU WILL BE TRIGGERED BY ANY OF THE SENSITIVE CONTENT WITHIN. PLEASE READ THE TAGS -
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I fell down into Snowdin after losing my way in the woods. It's all well and good that nothing can hurt me, but now I'm trapped down here. I have to figure out how to survive. My neighbors across the way, the skeletons, have been acting weird the last couple of weeks. It's not my problem because I have to haul garbage to fix my life.
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Monsters have been on the surface for about a year now. it's not as peaceful as most would like but it's the best everyone can get.
so what if you wandered into a bar with a friend to escape the cold only to meet a fire monster? a Monster who is like you? A monster who understands you? what may happen to you?
Things don't seem quite right after all. . . -
🌸the flower of my life🌸 by Meg_Backrooms, Youreverydayperson
Fandoms: Undertale (Video Game)
26 Oct 2022
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Aus are becoming one. What will happen when Frisk makes friends with a girl from flowerfell.
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Undyne gives the Royal Guard (and Papyrus) a training exercise in Snowdin.
Series
- Part 39 of Undertale/Deltarune Tumblr Requests
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The human with a black heart by Phan_tasma
Fandoms: Undertale (Video Game), Deltarune (Video Game)
14 Aug 2022
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This is not officially canon to my Undertale au but I thought I would add it here :)
Usually humans had some dictating feature of what their soul trait was, but this guy was making it really hard to tell.
And caros is to lazy to pull up his stats.
Series
- Part 1 of The judge was a stolen title
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⸻ 𝐌𝐔𝐋𝐓𝐈-𝐎𝐂 𝐈𝐍𝐒𝐄𝐑𝐓
⤷Sans has been through this over & over & over again. With each genocide led another nightmare he slowly grew used to seeing. But what if..Instead of 1..
3 humans fell that day?One of determination,
One of bravery,
Another of patience.【COPYRIGHT©】
@all rights reserved -
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You just wanted to help them.
Your coworkers, Sans and Red have helped you so much and saved you from your isolated life the least you can do is return the favor.
Basically a story of how you end up with 10 Skeletons living with you in your house and your day to day life and shenanigans.
Oh did I mention, you're a Gargoyle.
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You will take care of this child. Someone needs to. Children should be allowed to loiter around fights.
Or, How Undyne grew up.Series
- Part 38 of Two Steps To The Left, And a Long Fall