1 - 20 of 223 Works in Big Brother Sans (Undertale)

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  1. Tags
    Summary

    DIRECT SEQUEL/EPILOGUE TO “PATCHWORK SOUL” — 3 months later. A family of monsters and their little human kid try to start life anew beyond the confines of a giant mountain. Maybe they find something. Maybe they lose something. Time flows ever onwards, but sometimes it goes sideways, and it's heavier than they thought.

    [Please read PATCHWORK SOUL, know all major canon timelines, and the music of Undertale before reading for the best experience.]

    [An extended AU of what happens after a specific time kid's True Pacifist ending.]

    Series
    Language:
    English
    Words:
    451,572
    Chapters:
    45/?
    Comments:
    147
    Kudos:
    141
    Bookmarks:
    8
    Hits:
    2936
  2. Tags
    Summary

    Sans immediately knows something is different about Frisk, the second he sees them. He also knows they are going to cause him nothing but trouble. He finds he doesn't really care, because he's never felt the way he feels when he sees them before, and because against all odds, they are the kindest creature he's ever met.

    Frisk is desperate to free themself and their friends both from the resets they inadvertently cause and from the barrier. They find an unlikely companion in Sans, and together they try to find some way to let Frisk survive while still doing the right thing. It is all complicated by the feelings that start growing between them.

    Language:
    English
    Words:
    19,158
    Chapters:
    3/?
    Comments:
    7
    Kudos:
    22
    Bookmarks:
    3
    Hits:
    227
  3. Tags
    Summary

    When the destruction they wrought on their own planet became too much and humans left for space to let “Mother nature heal,” they didn’t realize they had left behind all the creatures they long ago declared nothing more than myths and fairy tales. Monsterkind breathed a collective sigh of relief, then they vowed that since the humans decided all on their own to leave that they would never be welcomed back to the home they had abandoned.

    Meet Blue, the newest recruit to The Scar Maintenance Corps, and Sans, his trainer. It’s their job to make sure the scout ship never finds proof that the Earth is capable of supporting humankind’s return. Namely: plants. Like that one that robot just scooped up and ran off with. Oh boy.

    Language:
    English
    Words:
    8,332
    Chapters:
    3/?
    Comments:
    22
    Kudos:
    22
    Bookmarks:
    3
    Hits:
    162
  4. Tags
    Summary

    Pacifist. Neutral. Genocide. SAVE. LOAD. RESET. Over, and over again. Living through an endless loop has started to take its toll on Sans. Eventually, he just doesn't care anymore. It's the same routine, scripted as if it were some endless book, a never ending cycle. Becoming withdrawn is one thing, depression is another.. Thoughts of suicide is when things get out of hand. Especially when people start to notice. So after monsters finally make it to the surface, they get a little worried for their skeletal friend. Too bad it'll just repeat again... Right?

    Language:
    English
    Words:
    13,133
    Chapters:
    6/?
    Comments:
    42
    Kudos:
    220
    Bookmarks:
    30
    Hits:
    2893
  5. Tags
    Summary

    Monsters, who are in tune with their souls, know when their soulmates reach a certain age.

    A monster will only have a monster as another soulmate.

    Right?

    Language:
    English
    Words:
    490
    Chapters:
    1/?
    Comments:
    3
    Kudos:
    30
    Bookmarks:
    5
    Hits:
    154
  6. Tags
    Summary

    It's a pretty mundane event: a skeleton happens upon an injured cat and after taking the poor thing in for medical help ends up adopting them.

    And then it happens again.

    Two cats found by two different monsters not far from each other, both obviously abandoned by the same negligent owner. Well clearly after they recover from their injuries they're going to have to be re-introduced to each other! But in the mean time these two bumbling owners are going to find out just how unprepared they are for the furry new additions to their families.

    Language:
    English
    Words:
    19,374
    Chapters:
    6/?
    Comments:
    86
    Kudos:
    111
    Bookmarks:
    17
    Hits:
    1035
  7. Tags
    Summary

    es la historia de como todos merecen una segunda oportunidad de ser feliz, sigan la historia de swapfell papyrus y como encuentra la determinacion de seguir vivendo junto a su nueva familia, y como esta prueba ser exactamente lo que el necesita....

    Language:
    Español
    Words:
    21,323
    Chapters:
    8/9
    Kudos:
    2
    Hits:
    4
  8. Tags
    Summary

    Something is up with Papyrus. Blue is determined to make some headway on their journey to Snowdin and the warning signs go completely over his head.

    Language:
    English
    Words:
    10,980
    Chapters:
    7/8
    Comments:
    28
    Kudos:
    33
    Bookmarks:
    2
    Hits:
    367
  9. Tags
    Summary

    In a half-Swapped Fell-verse, Captain Sans of Her Majesty's Royal Guard unexpectedly finds himself with custody of his younger brother.

    Series
    Language:
    English
    Words:
    12,230
    Chapters:
    8/?
    Comments:
    44
    Kudos:
    35
    Bookmarks:
    1
    Hits:
    276
  10. Tags
    Summary

    When Frisk Dreemurr broke the Barrier, they thought that their journey was over. This was far from true.
    Join the young Human-Monster Ambassador on their search for equality in a world that is constantly fighting itself, for peace from their past wrongdoings and for the true answers to what their universe is truly.
    In a world of lies resting on a few fragile shoulders, how will people cope when these lies collapse and end up hurting more people than they protected?

    Language:
    English
    Words:
    2,022
    Chapters:
    1/?
    Comments:
    5
    Kudos:
    13
    Bookmarks:
    1
    Hits:
    85
  11. Tags
    Summary

    Humans and monsters had a war but the monsters were not sealed, instead, they live together, but there were no equal rights. Monsters were regarded as the inferior ones.
    No magics here, only science. No UTopia here, just society.
    And now, in the modern world, city Ebbot…

    Language:
    English
    Words:
    8,168
    Chapters:
    8/?
    Collections:
    1
    Comments:
    2
    Kudos:
    12
    Bookmarks:
    1
    Hits:
    359
  12. Tags
    Summary

    After falling down a hole in a mountain, Frisk, a young teen, finds herself in a strange land filled with talking animals and creatures of various shapes and sizes, that's currently being ruled by an oppressive monarchy. Now with the help of new and strange friends, Frisk must find a way home while also escaping from the clutches of The Royal Hunt, a violent group of powerful warriors sworn to the kingdom, and one that's being led by the psychotic and mysterious Mad Mickey.

    Book 1 of the Shattering AU

    WARNING: this is a pretty dark and violent story with GRAPHIC DESCRIPTIONS and GORE, so if you are too squemish or simply don't like those sorts of things then I suggest you go back.

    Series
    Language:
    English
    Words:
    149,636
    Chapters:
    23/?
    Comments:
    28
    Kudos:
    34
    Bookmarks:
    10
    Hits:
    1322
  13. Tags
    Summary

    Alphys creates a machine that can display a monsters memories and invites Sans, Papyrus, Undyne, Toriel, and Frisk to help test it out. Sans is suspicious but agrees to help. His suspicions turn out to be well founded when something goes wrong and they have no way to stop the test. To make matters worse the one person who didn't want his memories shown is having them played like a movie. Now the group is forced watching Sans' most important memories to the end but maybe it could be fate. Sans has been secretive far too long or are somethings better left forgotten.

     
    *every other Saturday updates (or Sunday if I'm behind)*

    Language:
    English
    Words:
    50,585
    Chapters:
    27/?
    Comments:
    90
    Kudos:
    367
    Bookmarks:
    46
    Hits:
    5313
  14. Tags
    Summary

    After the world went dark, everyone lost a few memories.
    But some forgot more than others.

    Papyrus couldn't decipher what was real or an illusion.
    What was a nightmare or a memory.
    What it meant to keep hearing the words, 'I am here'.

    Language:
    English
    Words:
    45,832
    Chapters:
    17/17
    Comments:
    60
    Kudos:
    80
    Bookmarks:
    9
    Hits:
    1948
  15. Tags
    Summary

    Papyrus is in quite the bind but with the help of his flowery friend, everything will surely go to plan.

    "Hey Paps! Whats up?"
    "U-UNDYNE?"
    "Hey, whats wrong dude? You sound like your crying..."
    "THERES BEEN A PROBLEM."

    Series
    Language:
    English
    Words:
    9,282
    Chapters:
    8/?
    Comments:
    11
    Kudos:
    22
    Bookmarks:
    2
    Hits:
    452
  16. Tags
    Summary

    Maybe Blue’s smile and positive mental attitude are naïve. It’s not as if it’s always easy to maintain them when he sees his brother hurting every day…but he must. It’s all he knows. 

    Language:
    English
    Words:
    475
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    24
    Bookmarks:
    2
    Hits:
    84
  17. Tags
    Summary

    A monster comes up to Sans in a bar and offers him money for a bit of fun. With the extra cash in his back pocket, life seems lot easier for the skeleton brother and of course, it wasn’t.. that bad. Just until his paycheck comes through. That’s all, then he’ll stop. Right?

    Language:
    English
    Words:
    52,699
    Chapters:
    14/?
    Comments:
    175
    Kudos:
    235
    Bookmarks:
    34
    Hits:
    3367
  18. Tags
    Summary

    You haven’t stayed with Toriel for very long, but already, she’s been more a mother to you than your human parents ever were; and more than anything, you want her to be happy.

    Well, one thing is for certain: she isn’t happy right now. And you were determined to find out why, at first.

    You... Didn’t really think you’d be unraveling an entire mystery in the process.

    Language:
    English
    Words:
    968
    Chapters:
    2/?
    Collections:
    1
    Comments:
    2
    Kudos:
    7
    Hits:
    145
  19. Tags
    Summary

    There had to be something that could be done. They couldn't just stand by and watch as their best friend grew closer and closer to death. Puppet wouldn't like it, but there was a place they knew of that would keep him safe until they could better assess the situation. The magic surrounding it would even prevent the nightmares that plagued him so terribly night after night. It was a perfect idea. Now all he had to do was deal with the monsters inhabiting this special place. The Underground.

    Language:
    English
    Words:
    9,065
    Chapters:
    8/25
    Comments:
    2
    Kudos:
    39
    Bookmarks:
    3
    Hits:
    410
  20. Tags
    Summary

    They felt like they were falling. Falling deeper and deeper into darkness, falling away from the world and the people he cared so much about. But then he woke up…

    Asriel Dreemurr: The Prince of All Monsters had completed his role in the story. He had broken the barrier and helped monsters go free but was cursed to once again turn back into a soulless flower, a husk of his former self.

    However, something has gone wrong because instead of waking up as Flowey Asriel has woken up in both a body and room he does not recognize. Asriel has woken up in the body of his alternate college-aged self that appears to be the golden boy of his family.

    He’s now in a world where he’s seemed to have gotten everything he’s ever wanted but Asriel knows probably better than anyone else that something like this is too good to be true. Something about this world is wrong and he’s going to find out what it is.

    Language:
    English
    Words:
    15,727
    Chapters:
    3/?
    Comments:
    18
    Kudos:
    46
    Bookmarks:
    7
    Hits:
    701

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