4k+ Harry Potter the Mutant Obscurus Gamer » by GnomeBob The Fates of the MCU have written for Harry Potter to die during a failed Obscurial Transformation. A drunken conversation between the heads of the Marvel verse has changed that and Harry has ended up with Gamer powers among other things. Watch Harry go through Hogwarts, Kamar-Taj, and Xavier's institute as he learns to use his powers and level up. Contains a Flerken. Harem by Arc3
Harry Potter & Avengers, T, English, Adventure & Humor, chapters: 93, words: 489k+, favs: 7k+, follows: 8k+, updated: 10/20 published: 4/24/2020, Harry P.
205The Solar Research Council » by Minimalist.Musings Humanity was unified by the Pluto Research Council, a forward-looking nation-state dedicated to the advancement of the species via relentless pursuit of knowledge and development. With the discovery of the Charon relay, how will the Scientific Principle guide Humanity into the future? (Updated: Book 1 Chapter 1)
Mass Effect, K+, English, Sci-Fi, chapters: 32, words: 59k+, favs: 573, follows: 811, updated: 10/12 published: 1/15
1k+Si Vis Pacem, Para Bellum » by Mister Cynical All they wanted was a normal school year and now they're willing to fight for it. An alternative take on the Trio's fourth year.
Harry Potter, M, English, Humor & Adventure, chapters: 36, words: 149k+, favs: 2k+, follows: 3k+, updated: 10/1 published: 1/1/2017
152Positive Intervention » by StolenHawk22 Jiraiya takes over as Naruto's guardian when he's 7, taking him from the village till he's 12, changing Naruto's life for the better. Stronger and 'Smarter' Naruto, but it will be a reasonably paced build-up. Slight AU, more Uzumaki, a stronger bond between Naruto and Sasuke, but my goal is to keep the core of their characters the same. No bashing. No pairing at this moment.
Naruto, T, English, Adventure & Friendship, chapters: 18, words: 110k+, favs: 388, follows: 514, updated: 9/26 published: 3/9, Naruto U., Sasuke U., Jiraiya
434Deadly Drinking Pirate » by Mar 'Darry' Darren Ace was wondering about that sake he stole from those pirates before allowing his little brother Luffy drink it when they became brothers. And now, Luffy has gained a new ability, one that defies the laws of Devil Fruits and yet makes him even stronger than before. Watch this drunk-proof pirate become the king of them all. Mature Luffy Dual Devil Fruit Luffy Luffy/Harem
One Piece, T, English, Adventure, chapters: 65, words: 285k+, favs: 1k+, follows: 1k+, updated: 9/25 published: 8/4/2015, [Luffy, Nami, Robin]
360 Witch on the Waves » by wauk At the age of fourteen, Nami regains the memories of her past life as Harry Potter. Suddenly Arlong is merely a bump in the road, her map-making dream seems that much closer, and Nami has gained an interest in the magic and supernatural powers of this world. Who created those Devil Fruits anyway? Eventual Nami/Robin. No smut.
Harry Potter & One Piece, M, English, Humor & Adventure, chapters: 23, words: 117k+, favs: 1k+, follows: 1k+, updated: 9/25 published: 4/11, Harry P., Nami, Robin, Nojiko
898 Asulmagus » by NooShoak Accidental magic is just that, but if a young wizard is pushed too hard, the results can get... messy. watch as Harry adapts to what his magic grants him, and forges a new path, breaking through the plots with have been weaved with azure wings. (Some mentions of abuse in first chapter. Evil!Dumbledore. Ron. Ginny, Molly Bashing. Powerful!Kaiju!Harry)
Harry Potter & Godzilla, T, English, Fantasy & Adventure, chapters: 69, words: 97k+, favs: 2k+, follows: 2k+, updated: 9/18 published: 5/4/2014, Harry P., Neville L., Godzilla
5k+ Dining with Divinity » by SoulReaperCrewe Even the Gods and Goddesses of Olympus needed a day off. Sometime's they needed time away from the constant bickering and never-ending controversies of their family. On one such day, Wisdom and Moon found themselves discovering a hidden gem within the city that never slept, and meeting a familiar blonde knucklehead with a penchant for the colour orange.
Naruto & Percy Jackson and the Olympians, T, English, Family & Humor, chapters: 19, words: 157k+, favs: 10k+, follows: 11k+, updated: 9/14 published: 12/5/2019, Naruto U.
828 The Potioneer's Assistant Rebrewed » by kgfinkel An updated and improved brew of the original 2017 publishing of The Potioneer's Assistant. While the story is a bit different, the friendships are the same as are the conflicts in the Destiny of one Harry James Potter. AD/RW/DM bash, Mentor Severus Snape, Good Dursleys. Mundane computer science is mixed with ancient magic to create a cauldron full of adventure and friendship!
Harry Potter, T, English, Adventure & Friendship, chapters: 40, words: 316k+, favs: 1k+, follows: 1k+, updated: 9/13 published: 2/15, [Harry P., Hermione G.] Severus S., Neville L.
8k+Robb Returns » by The Dark Scribbler The Red Wedding has happened and the Old Gods are getting worried about what has happened. They have no choice. Robb must return.
A song of Ice and Fire, K+, English, Fantasy & Adventure, chapters: 161, words: 673k+, favs: 7k+, follows: 7k+, updated: 9/13 published: 7/16/2015, Eddard S./Ned, Robb S., Theon G., Domeric B.
578 The Force's Balance » by Kassien MOD!Harry Potter travels through the veil to Kashyyyk in the Star Wars Galaxy 20 years before Clone Wars. Harry becomes the Force's Balance as he forges the third path between the Dark and the Light. Some Jedi & Sith bashing. Strong!Harry, Smart!Harry. Slow world building. No set pairings, but many relationships throughout. Rated M for mature themes and language as always.
Star Wars & Harry Potter, M, English, Adventure & Drama, chapters: 24, words: 230k+, favs: 1k+, follows: 2k+, updated: 9/13 published: 7/20, Qui-Gon J., Yoda, Harry P., Sirius B.
1k+Supernova » by Primordial Vortex Luffy's adventures took a much different start. It wasn't the Gomu Gomu fruit that Shanks and his crew brought to that sleepy town, and the consequences will reverberate throughout the Grand Line! With the power of the Sun in his hands, the Mugiwara Crew will take on the world! Different-DF-Luffy! Expanded crew. Harem. No Yaoi.
One Piece, M, English, Adventure & Romance, chapters: 10, words: 217k+, favs: 6k+, follows: 6k+, updated: 9/6 published: 10/19/2015, [Luffy, Nami] unknown 1
1k+Albus and Harry's World Trip » by ZebJeb After defeating the basilisk, Harry is expelled for his efforts. Dumbledore was unable to get his job back as Headmaster. The two set off on a trip together around the world, where Harry will discover the benefits of being the only student of a brilliant former Headmaster who no longer feels the need to avoid sharing information.
Harry Potter, T, English, Humor & Adventure, chapters: 21, words: 121k+, favs: 4k+, follows: 6k+, updated: 8/24 published: 9/15/2019, Harry P., Albus D.
876 Adeptum Effectus » by Reddevel360 "Killing a man will harden you. Fighting a war against genocide will harden a species. Why are we so ruthless Councilor? Because when fighting for your very existence, anything is acceptable."-Lord Hood. Featuring a Humanity that discovered the archives on Mars in the midst of fighting an war for their very survival, a war that destined to be a massacre turns into a stalemate -Hia
Halo & Mass Effect, M, English, Sci-Fi & Tragedy, chapters: 14, words: 90k+, favs: 2k+, follows: 3k+, updated: 8/19 published: 5/10/2019, Master Chief/John-117, T. Hood, Admiral Hackett, Councilor Sparatus
591 Forward Unto Dawn » by TheWizardofOzbourne Triple Crossover, TSCC/Halo w/Star Trek: Voy/DS9/TNG elements. Trapped in a universe similar to our own, Cameron and John Henry struggle to return home. To do so, three gifts, each from another universe, will get them home and entangle them in a war they thought they knew. Eventual Jameron and MC/Cortana. Updated! 08/04/2021 CH48 Posted!
Terminator: Sarah Connor Chronicles & Halo, T, English, Sci-Fi & Adventure, chapters: 48, words: 367k+, favs: 248, follows: 302, updated: 8/4 published: 3/26/2013, [John C., Cameron] [Cortana, Master Chief/John-117]
2k+Royal Ward » by Catstaff Based on "Hatal Fart Attack" by Corwalch, "Royal Ward" follows the changes in Harry's life after he gains the personal attention of the Queen. My thanks to Corwalch for permission to write a sequel. Reading "Hatal Fart Attack" first is recommended, but not absolutely required. Please note that this story begins in 1989, shortly before Harry turns 9.
Harry Potter, T, English, chapters: 66, words: 307k+, favs: 5k+, follows: 6k+, updated: 7/25 published: 7/21/2014
10k+Odd Ideas » by Rorschach's Blot Odd little one shots that may or may not be turned into their own stories.
Harry Potter, M, English, Humor, chapters: 194, words: 854k+, favs: 6k+, follows: 5k+, updated: 6/17 published: 9/4/2005
4k+ Maester Wolf » by ctc1000 What if Jon Snow wasn't the stupidest man in Westeros? A new beginning where Jon is still Lyanna's son, but Ned Stark hides him in a different way, which has a major impact on the Wars to come. A more cunning Snow changes the outcomes for his brothers and sisters. Eventually there will be some pairings but not for a while. The first section will be the War in the Riverlands.
Game of Thrones, T, English, chapters: 38, words: 377k+, favs: 6k+, follows: 5k+, updated: 4/28 published: 5/26/2019, Jon S., Robb S.
2k+Ex Synthetica » by willyolioleo Taylor doesn't get to control insects. Instead, she controls things that are slightly... smaller. Tinker/Master Taylor. Updates weekly, hopefully. Based more on fanon than canon.
Worm, M, English, Adventure, chapters: 62, words: 334k+, favs: 3k+, follows: 4k+, updated: 3/18 published: 10/20/2019, Skitter, Tattletale, Victoria D./Glory Girl, Panacea
443 De Nova Terra Inferos » by AkibasOmega Harry finally defeats Voldemort, but before he can mourn his friends and losses, he is sucked into a black void... where he's spat out near Atlanta, Georgia. What is he going to do now that he's all alone in a weird place. Where even weirder things are happening. Why are the Dead Walking? Harry will do whatever it takes to survive. Its time to think of number One now.
Harry Potter & Walking Dead, M, English, Adventure, chapters: 25, words: 95k+, favs: 1k+, follows: 1k+, updated: 3/8 published: 6/19/2019, Harry P., Daryl D., Merle D., Michonne