BoulderDash
Fandoms
- Undertale (Video Game) (16)
- Original Work (1)
- Rick and Morty (1)
- Warriors - Erin Hunter (1)
Recent works
-
Tags
Summary
You ran.
He let you.
For now.
MuttXReader
-
Tags
Summary
Your heat has started, you're trying to make it home before your suppressants fail.
Instead, you meet your soulmate. And he takes care of you.Second chapter is some domestic fluff
Third chapter, Edge meets his soulmate!
-
Tags
Summary
The wind blew your hair towards the water, and you took this as a sign that it was time. You stood up.
And you jumped.
Skeletal hands wrapped around you, pulling you back over the ledge.
“OH STARS HUMAN! I COMMEND YOUR COURAGE BUT A DIVE FROM SUCH HEIGHTS WOULD BE SERIOUSLY FATAL TO A SQUISHY CREATURE LIKE YOURSELF,” A skeleton monster with a red scarf said, his arms still firmly around your waist. “YOU ARE QUITE LUCKY THE GREAT PAPYRUS WAS HERE TO STOP SUCH A TRAGIC EVENT.”
You’re too surprised to be mad.
-
Tags
Summary
You died. Sans died. But in the void between life and death, you found each other, and a chance to live again.
Merged into one body with a dying child skeleton, you wake up in the middle of a brutal war between humans and monsters. With baby Papyrus to protect and your brother Gaster's experiments turning you into something more (and less) than human, survival means running, fighting, and holding onto whatever shreds of innocence you can preserve.Or: Isekai War AU where you get hit by Truck-kun, merge with Sans, become a child soldier, and eventually end up in a polyamorous found family with 14+ skeletons. Features: PTSD, creative use of green magic, so many puns, and the aggressive pursuit of a normal childhood for Papyrus.
no stripes or brother/brother are involved in romance.
Ask not for whom Truck-Kun honks, Truck-Kun honks for thee
This is entirely plotted out and outlined but will not have a set release schedule
The background is finally done! If you dont like war AU's you can officially skip to the middle of Chapter 10 and it becomes a 10 skeleton story.
-
Tags
Summary
You are tired of these fucking skeletons.
After a broken nose, you go to the bar for comfort, and meet someone amazing. Will he help you out of your shit situation?Anti-harem doggo/reader fic bc he deserves more love and he fucking hates Sans, so I thought anti-harem would work really well for him.
All of the skeletons are assholes and don't deserve you.
Recent bookmarks
-
Tags
Summary
Your closest friend on campus is an Omega named Papyrus you met at orientation. He would be your best friend if it wasn't for a complication that came with being Papyrus's friend. His older brother, the Alpha Sans, who seemed like he was always ready with a threat or an uncomfortable observation.
Overprotective by default or maybe just the right amount of protective given what happened your third week into the school year.Series
- Part 2 of Transition Metals
Bookmarked by BoulderDash
20 Jun 2026
-
Tags
Summary
You are on death's bed, there is no denying it at this point. Your good friend listened to you rave about an upcoming otome game you have been desperate to play since you've heard of it's creation. Only to sadden when your prognosis would keep you from seeing it in your lifetime. Well this good friend manages to get you a copy. So who would have thought that when you eventually passed on, you'd wake up as a healthy you? With goat ears, nubby horns, and a cute fluffy tail? Also a barrage of skeletons waiting on you hand and foot, calling you their queen... After playing many routes, there is one thing you are sure of... To make sure Black doesn't kill you like he does in the game... yet you don't seem to understand the stark contrast of yourself vs the queen as the skeletons do... and if you aren't careful? Black and the others will fall head over heels for you.
Bookmarked by BoulderDash
08 Jun 2026
-
Tags
Summary
Life just has this way of kicking you while your down, but this time you've got enough skeletons in your closet to help you back onto your feet, so when your boyfriend cheats on you, you really don't think it can get any worse.
...right?
Series
- Part 1 of Here Comes A Thought
- Part 2 of Soulmate Multiverse
- Language:
- English
- Words:
- 139,370
- Chapters:
- 71/71
- Collections:
- 1
- Comments:
- 1,257
- Kudos:
- 3,005
- Bookmarks:
- 618
- Hits:
- 96,889
Bookmarked by BoulderDash
29 May 2026
-
Tags
Summary
Monsters came out of the mountain last year. An unknown number societies filled with creatures small enough to be held with one or two hands. Without their Core, their Souls need to gain ‘magic’ from Human Souls caring for them. So of course, shops popped up all over the place advertising different ‘varieties’ of ‘Bitties’ for Humans to ‘adopt’.
I’ve seen plenty of these poor little creatures up close and I’m telling you, these are tiny people who deserve more than pet status. Not to mention the fighting rings. There’s intelligence in their eyes that I don’t even see in half the Human people I encounter. Not that I’m particularly interested in encountering people. My street cat Emily and I prefer staying at home, making just enough money off of my video game streaming to stay afloat.
Emily is an odd cat. She came into my life freshly pregnant and demanding to be my cat. Her cool as fuck skeletal pattern gave me the idea to keep my identity online a secret by slapping on skeletal face paint. The viewers love it.
Sadly, Emily gave birth just a few nights ago, to a litter of stillborns. She’s been beyond miserable. She goes out every night now, I’m really worried about her.
Bookmarked by BoulderDash
27 Jan 2026
-
Tags
Summary
You've gotten married to a monster, he mostly ignores you though
Series
- Part 6 of One-shots
Bookmarked by BoulderDash
26 Jan 2026