2k+ The Mission Stays the Same » by Broken Trident A joke of Chaos daemon sent two unlikely allies - an Eldar Farseer and an Imperial Storm trooper, through the Warp and into another Universe. In this place, everything is alien to them. Except for one thing - war. War is something they know very well. (Story adopted by Regina Dea. New author starts from Chapter 21)
Warhammer & Mass Effect, M, English, Sci-Fi & Adventure, chapters: 31, words: 354k+, favs: 4k+, follows: 4k+, updated: 9/3 published: 10/4/2011, Eldar, Imperial Guard, Shepard
2k+ Mass Effect: Human Revolution » by IgnusDei Adam Jensen finds himself in a time only dreamed of in vids, humanity is now part of a great galactic community that fears synthetics, and he struggles to find his place within it. Note: Primarily a DX/ME crossover, with elements borrowed and integrated from other Square Enix franchises.
Deus Ex & Mass Effect, M, English, Sci-Fi & Supernatural, chapters: 91, words: 876k+, favs: 2k+, follows: 2k+, updated: 6/14 published: 3/12/2012
682 Avatar of Victory » by James Golen The Cycle of the Avatar has held for thousands of years. Other Cycles can stretch far, far longer. An A:tLA/Mass Effect Cross-Over
Avatar: Last Airbender & Mass Effect, T, English, Sci-Fi, chapters: 85, words: 1937k+, favs: 803, follows: 732, updated: 4/14 published: 5/8/2012
699 The Dark Lord's Equal » by Lens of Sanity Years after the Epilogue things look bleak: Harry Potter agrees to go back to the Ministry Battle to change history for the better. Premise: "canon makes sense" though not in the way you think. Fight scenes, humour, romance, magic, and insanity.
Harry Potter, T, English, Adventure & Romance, chapters: 6, words: 58k+, favs: 2k+, follows: 1k+, updated: 2/21 published: 2/21/2011, Harry P., Hermione G.
10k+Prince of the Dark Kingdom » by Mizuni-sama Ten years ago, Voldemort created his kingdom. Now a confused young wizard stumbles into it, and carves out a destiny. AU. Nondark Harry. MentorVoldemort. VII Ch.8 In which someone is dead, wounded, or kidnapped in every scene.
Harry Potter, M, English, Drama & Adventure, chapters: 148, words: 1253k+, favs: 8k+, follows: 7k+, updated: 1/20 published: 9/3/2007, Harry P., Voldemort
1k+MLP Loops » by Saphroneth Twilight Sparkle has been here before. In fact, she's been here so often she's thoroughly bored. Time Loop stories for Equestria.
My Little Pony, T, English, Humor, chapters: 224, words: 2328k+, favs: 1k+, follows: 1k+, updated: 11/19/2020 published: 4/19/2013, Twilight Sparkle
1k+ Harry Potter and the Wand of Uru » by realjoehundredaire After slipping diagonally through time and space to a familiar time in an unfamiliar world, Harry finds himself fighting to save a future that's not quite what he remembers. Crossover between Harry Potter and the Marvel Cinematic Universe, with pre-Fox acquisition X-Men elements and reimagined Inhumans. Polyamorous Harry.
Harry Potter & Avengers, T, English, Adventure & Romance, chapters: 5, words: 23k+, favs: 3k+, follows: 3k+, updated: 6/20/2020 published: 6/27/2008, [Harry P., Tracey D.] Daphne G., Loki
671 Inquisitor Carrow and the Tournament of Tribulations » by littlewhitecat His plans to insert himself within the guts of the Ministry of Magic have been highly successful, his apprentices are proving to be both talented and intuitive, and his efforts to consolidate his position within the mundane world are proceeding nicely. But as he knows all to well, all plans disintegrate on contact with reality...and what is English Heritage anyway?
Harry Potter & Warhammer, T, English, Humor & Adventure, chapters: 11, words: 143k+, favs: 1k+, follows: 1k+, updated: 1/2/2020 published: 7/1/2014
852 Potter Who and the Wossname's Thingummy » by ForrestUUID No TARDIS, no screwdriver, and no memory — on the plus side, an owl and a wand! May or may not be AU. "It's all in the mind, you know."
Doctor Who & Harry Potter, K+, English, Humor & Mystery, chapters: 40, words: 226k+, favs: 1k+, follows: 1k+, updated: 10/31/2019 published: 8/31/2012, 11th Doctor, Harry P.
2k+Prodigal Delinquent » by Ethereal Euphoria AU. Little Harry Potter knew from the moment he defied the laws of gravity and made a pebble accelerate at a freefall of 8.9 m/s 2, that he was going to have fun learning about the rules of all the known universe… and breaking every single one of them. WARNING: Sporadic Updates.
Harry Potter, T, English, Humor & Adventure, chapters: 16, words: 72k+, favs: 7k+, follows: 9k+, updated: 10/20/2019 published: 6/4/2008, Harry P.
6k+ Harry Potter and the Natural 20 » by Sir Poley Milo, a genre-savvy D&D Wizard and Adventurer Extraordinaire is forced to attend Hogwarts, and soon finds himself plunged into a new adventure of magic, mad old Wizards, metagaming, misunderstandings, and munchkinry. Updates monthly.
Harry Potter & Dungeons and Dragons, T, English, chapters: 74, words: 314k+, favs: 7k+, follows: 8k+, updated: 8/2/2018 published: 5/7/2012
1k+ Shinji and the Doctor » by machiavelli Fourteen-year-old Shinji Ikari finds himself being mentored by the greatest English teacher in the multiverse. The real question is, will the strange man called the Doctor help save the world - or end it? (Cover art by Epsthian-Artist on DeviantArt. Used with permission.)
Doctor Who & Evangelion, T, English, Adventure & Horror, chapters: 121, words: 225k+, favs: 1k+, follows: 1k+, updated: 12/23/2017 published: 9/8/2011, 10th Doctor, Shinji I., Misato K., Asuka L. S.
374Unbroken » by Donderkind Asuka and Shinji struggle to survive in the Post 3rd Impact wasteland. What went wrong? How did the boy who rose to become God plummet down so low? Asuka struggles to unlock his mind and prevent it all from happening again. Rating may change due to language.
Evangelion, T, English, Drama & Adventure, chapters: 15, words: 103k+, favs: 675, follows: 773, updated: 5/26/2017 published: 10/12/2011, Asuka L. S., Shinji I.
367Unmasked » by Razamataz22 Shirley was unable to gather the strength necessary to shoot Viletta, her choice however is one which will tear Area Eleven in half. Upon the executioners stand, Lelouch plays one last card which will shake the world to it's core.
Code Geass, T, English, Adventure, chapters: 19, words: 41k+, favs: 912, follows: 1k+, updated: 12/25/2016 published: 5/24/2012, Lelouch L., Cornelia L.B., Kallen S., Suzaku K.
572 Enter the Dragon » by Doghead Thirteen It began with a quirk of timing. It continued because dragons, such as what 8-year-old Harry Potter just turned into, are large and difficult to control. Fortunate for everyone he's a nice kid, eh? Shadowrun and Rifts crossover. You have now been warned.
Harry Potter & Shadowrun, T, English, Humor & Adventure, chapters: 2, words: 131k+, favs: 3k+, follows: 2k+, updated: 7/26/2016 published: 12/16/2009, Harry P.
711 Silly but Killy » by Palladius What if there were no Humans in Mass Effect? What if there were Orks instead? The Council would have a lot less sleep, for one thing.
Warhammer & Mass Effect, T, English, Humor & Sci-Fi, chapters: 15, words: 47k+, favs: 1k+, follows: 1k+, updated: 4/23/2016 published: 7/30/2014
394A Bad Death Eater Gone Good » by Kneazle AU, time travel. Voldemort won and Harry lost. Life under Lord Voldemort's rule isn't what the Purebloods thought it would be... so a half-baked plot to twist time to save their sorry hides is concocted. But will it work? [WIP]
Harry Potter, M, English, Adventure & Humor, chapters: 5, words: 30k+, favs: 1k+, follows: 1k+, updated: 6/6/2015 published: 2/9/2012, Harry P., Hermione G., Draco M.
10k+ Harry Potter and the Methods of Rationality » by Less Wrong Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.
Harry Potter, T, English, Drama & Humor, chapters: 122, words: 661k+, favs: 28k+, follows: 20k+, updated: 3/14/2015 published: 2/28/2010, Harry P., Hermione G.
5Neon Genesis Angelium » by jesakofedo In a world where Humanity is descended from ADAM, NERV and its Angelic allies must weather the assault of the Evangelion Legions Rated T for violence, and some language
Evangelion, T, English, Drama & Sci-Fi, chapters: 5, words: 6k+, favs: 6, follows: 7, updated: 11/13/2014 published: 10/21/2014, Shinji I., Rei A., Asuka L. S., Zeruel
217A Stranger on the Frontier » by keiranhalcyon2010 Keiran Swan was going to die, but rescued from death's clutches by our favorite single letter ROB. Now in another universe, burdened with the knowledge of what's to come, he must walk a tight rope of temptation - and truly face the dilemma of a certain famous Vulcan proverb. (SI)
StarTrek: Deep Space Nine, M, English, Sci-Fi & Adventure, chapters: 12, words: 55k+, favs: 494, follows: 461, updated: 10/21/2014 published: 3/25/2013, Jadzia D., B. Sisko