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Under the Veil by
poplasia reviews
Sans has gotten himself stuck in the void between worlds in a successful attempt to stop the resets of his timeline. He's not sure how long he's been chillin' alone there, but eventually a chance at escape stumbles his way in from the Veil of Death. His name?—Sirius Black. (no pairings)
Crossover - Harry Potter & Undertale - Rated: T - English - Fantasy/Humor - Chapters: 42 - Words: 143,718 - Reviews: 1446 - Favs: 1,318 - Follows: 1,571 - Updated: 4h - Published: 8/1/2016 - Sirius B., Sans
Ancient Magickes by
Flying Dragonite reviews
"Legend has it, an 'angel' who has seen the surface will descend from above and bring us freedom." Upon Harry Potter's 16th birthday, he finds himself receiving a creature inheritance of such monumental importance, that he may be the key to peace between monsters and humans, purebloods and muggleborns, wizards and muggles. And he had always said he simply wanted to be "just Harry".
Crossover - Harry Potter & Undertale - Rated: T - English - Hurt/Comfort/Angst - Chapters: 21 - Words: 38,741 - Reviews: 108 - Favs: 520 - Follows: 604 - Updated: 2/15 - Published: 12/28/2016 - Harry P., Papyrus, Sans, Chara
My Hero Academia Meets Undertale by
RandomPotatoKid reviews
My second book ever :) Monster Society meets The society of Quirks and heroes. Everything seems well and good, but a demon lies in nothingness, watching from the shadows...
Crossover - Undertale & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Supernatural/Drama - Chapters: 7 - Words: 9,869 - Reviews: 9 - Favs: 27 - Follows: 28 - Updated: 1/23 - Published: 8/5/2018 - Chara, Sans, Izuku M., Ochako U.
Maraudertale by
under-the-blue-moonlight reviews
After being missing for a month, Remus Lupin's twin sister returns with a brand new set of...interesting...friends. After spending the rest of the summer hiding his true identity from his new family, Remus and his friends find a new subject on their Hogwarts timetable for their fourth year and the professor is all too familiar to the young lycanthrope.
Crossover - Harry Potter & Undertale - Rated: T - English - Fantasy/Friendship - Chapters: 24 - Words: 29,943 - Reviews: 98 - Favs: 102 - Follows: 134 - Updated: 7/2/2018 - Published: 10/10/2017 - Remus L., James P., Frisk, Sans
It's A Beautiful Virtual Day Outside by
Neovilus Alpheim reviews
None could truly understand how the Cardinal System operates other than the fact that it collects data to produce 'interesting' results; be it spawn balancing, generation of new quests, or etc. What if... the System decided to keep things interesting by giving a player a certain power from another game? ...chances are though, he's just a dirty hacker, isn't he? yeah, get outta here
Crossover - Sword Art Online/ソードアート・オンライン & Undertale - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 12 - Words: 58,553 - Reviews: 151 - Favs: 196 - Follows: 256 - Updated: 6/12/2018 - Published: 2/7/2017 - OC, Sans
Percy Jackson and the world of magic by
I'mjusttryingtofindmyway reviews
In the battle against Kronos Percy the thrown back in time to 1994. Unable to even step foot in America as not risk damaging time itself he is exiled to UK, but all is not lost as he finds a world to hide away in, a world to live in. A world of magic. The wizarding world won't know what hit it.
Crossover - Harry Potter & Percy Jackson and the Olympians - Rated: M - English - Adventure/Fantasy - Chapters: 33 - Words: 263,797 - Reviews: 3810 - Favs: 5,370 - Follows: 5,711 - Updated: 5/13/2018 - Published: 11/5/2016
God of Judgement by
Sans-The-Fullmetal-Time Lord reviews
This isn't what was supposed to happen...He never wanted any of this. Now Sans has to drop his lazy-bones disguise and become something he never wanted to be, in order to save the ones he loves. Now that humans are falling quicker then ever before, those "Half-Bloods" will never know what hit them. ((Contains Character Death. Godlike!Sans)
Crossover - Percy Jackson and the Olympians & Undertale - Rated: T - English - Angst/Fantasy - Chapters: 5 - Words: 11,587 - Reviews: 21 - Favs: 50 - Follows: 71 - Updated: 3/11/2018 - Published: 3/4/2018 - Percy J., Piper M., Jason G., Sans
All it takes is one punch by
ToscoFarrax reviews
After a strange incident in Y-City, Saitama is thrown in a strange land where everyone has superpowers, join him as he tries to settle down in this new land where lethal force on 'monsters' or anything for that matter is a big no-no.
Crossover - One Punch Man/ワンパンマン & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Humor/Romance - Chapters: 3 - Words: 47,420 - Reviews: 370 - Favs: 1,530 - Follows: 1,908 - Updated: 12/3/2017 - Published: 7/25/2017
The Tournament of Power by
Vegito FanFiction reviews
The Tournament of Power is the deciding factor of all the participating universes' survival. Beerus decides to take matter in his own hands. While Goku searches for members for the Tournament, the God goes hunting as well. How will he react when he comes across a certain caped baldy who is a hero for fun?
Crossover - Dragon Ball Z & One Punch Man/ワンパンマン - Rated: T - English - Supernatural/Humor - Chapters: 1 - Words: 3,188 - Reviews: 64 - Favs: 225 - Follows: 263 - Published: 8/28/2017 - Goku, Beerus, Saitama, Genos
The Blue Alchemist by
FlamingFlyingFoxOfDoom reviews
A new state alchemist appears. And he's very, very... peculiar. Now that Roy is assigned this strange man, what hijinks will unfold? How many hotdogs can be stacked on the Colonel's head while he's asleep? ... And what is the man's true goal?
Crossover - Fullmetal Alchemist & Undertale - Rated: T - English - Family/Humor - Chapters: 21 - Words: 37,605 - Reviews: 444 - Favs: 575 - Follows: 723 - Updated: 7/30/2017 - Published: 2/12/2016 - Edward E., Roy M., Sans
Percy Jackson and the Game by
I'mjusttryingtofindmyway reviews
Percy is given the gift of the Gamer turning his life into a video game with levels, dungeons and skill points. Now Percy, armed with this amazing ability, sets out to prove himself to the world of the gods and humans by becoming the best at he can be and fulfilling his destiny. And eventually maybe even find love. Swearing, OP Percy, oh and REVIEWS!
Percy Jackson and the Olympians - Rated: M - English - Fantasy/Adventure - Chapters: 64 - Words: 781,118 - Reviews: 9674 - Favs: 9,161 - Follows: 9,262 - Updated: 6/4/2017 - Published: 12/28/2015 - Percy J., Thalia G., Artemis