40 Mass Effect: Temporal Storm » by Codename Dutchess When Harry's raid on the Ministry of Magic to rescue Sirius goes awry, he gets thrown forward in time, approximately 184 years. Later, when the secret Alliance vessel Normandy goes on its first voyage to Eden Prime, how will Commander Shepherd cope with an upstart Corporal on his first real assignment?
T, English, Sci-Fi & Adventure, chapters: 6, words: 10k+, favs: 294, follows: 519, updated: 7/20 published: 7/7/2016
5 Siblings of Metal » by Tyara Laedros Everyone know the story of Harry Potter and his friends. But how many of you know the story of the Siblings of Metal ? No history book ever mentionned them. They are the forgotten names. The unknown heroes... John Shepard was a Slytherin, joining Hogwarts the same year Potter did. And he has a story for you... HP x Mass Effect Crossover
T, English, Angst, chapters: 20, words: 70k+, favs: 22, follows: 23, updated: 7/6 published: 8/8/2019, Ashley W., Kaidan A., Miranda L., Shepard
1 Codex for the Great Anomaly by Dumbnoobe Title says it all.
T, English, words: 414, favs: 6, follows: 5, 1/9
9 A Strange Future - An Empty Past » by Twilit Bakery Harriet Potter needed a fresh start; her friends were all dead, she had spent a lot of the past decades (centuries?) inside, learning what she could about magic, and when she tried to portkey to Gringotts she was trapped in some sort of metal coffin. Maybe now would be a good time to take a nap... Fem!HarryxSaraxPeebee
T, English, Romance & Adventure, chapters: 2, words: 6k+, favs: 102, follows: 203, 11/13/2019, Harry P., Sara Ryder, Peebee S.
60 The Veil » by Angler11235 Before he ever attends Hogwarts, Harry goes through the Veil of Death. He must adapt in order to survive and thrive in the alien universe he finds himself in.
T, English, Adventure, chapters: 5, words: 25k+, favs: 361, follows: 636, updated: 6/18/2019 published: 5/19/2019, Harry P., Liara T'Soni
44 Ragamuffins and Reapers » by dead.but.true Entering what he thought would be a peaceful afterlife, Harry gets instead thrown into a conflict of a galactic scale. Now Master of Death, he and his ragtag bunch of companions must save the world - and preferably keep their sanity.
T, English, Humor & Adventure, chapters: 9, words: 29k+, favs: 176, follows: 263, updated: 1/26/2019 published: 6/25/2018, Harry P., OC
179 A god among men » by tdy4234 Harry has had a hell of a life, he has survived by playing the cards he is dealt. What happens when he hits his breaking point and starts using anything he can get his hands on to win? What happens when magic deals him a new hand? He pimp slaps Mass effect into submission taking shit from no one. Badass!Harry harem!Harry AU!
T, English, Romance & Adventure, chapters: 9, words: 16k+, favs: 904, follows: 1k+, updated: 1/2/2019 published: 1/16/2017, Harry P., Liara T'Soni, Tali'Zorah, Aria T'Loak
50 Elements of Attraction » by Pax Humana Sequel to the Potter Attraction set centuries after Reunification and the discovery of Martian ruins, after unification under the Solar (later Stellar) Alliance, after eezo, magic and chakra combined to take people to the stars. Peace was theirs in a Golden Age until a strange ship showed up out of the black. What followed would upset everything. Partially published as Casus Belli.
T, English, Sci-Fi & Adventure, chapters: 4, words: 24k+, favs: 426, follows: 530, updated: 11/17/2018 published: 9/30/2018
97 A Paragon of Magic » by The Dark Warden Shepard finally did it. She had destroyed the Reapers, just as she promised she would. However, things didn't go according to plan. Instead of dying or maybe falling to Earth with the wreckage of the Crucible, she instead finds herself thrown into a life she never lived, facing things that were only fairy tales to her. Join Morgana Lilian Shepard as she takes on a whole new world!
T, English, Adventure & Romance, chapters: 5, words: 41k+, favs: 256, follows: 387, updated: 8/30/2018 published: 7/15/2018, [J. Garson, Liara T'Soni]
948 Beyond The Veil » by NaniteSystems After the Battle of Hogwarts Harry finds himself rising through the ranks of the Ministry's Unspeakables. All is well until one day a strange set of runes carved into the base of the Veil of Death catches his eye. After a hint from the Hallows, Harry steps through the Veil and into a strange new world. But not all is as it seems. Threats both old and new lurk in the darkness.
T, English, Adventure & Sci-Fi, chapters: 21, words: 192k+, favs: 4k+, follows: 5k+, updated: 6/26/2018 published: 9/2/2016, [Harry P., Shepard]
6 The Conflict Eternal by DagonKin When Humanity reached the stars, they quickly realized they were not alone. First Contact was not peaceful; the Ethereals quickly took notice of a species developing along a different path than the one planned by the 'Great Enemy'. They invaded Earth, seeking to uplift humanity - to enslave them. They failed, their invasion broken, sparking a war that has spanned millenina.
T, English, Adventure & Sci-Fi, words: 2k+, favs: 74, follows: 135, 6/17/2018
11 An Archangel's Vengeance by SoundedSummer Dragged along as the Dursleys flee Financial Ruin, Harry finds himself on Omega after his disastrous fourth year. He arrives, and finds trouble that leaves him without his memory and no idea of who he is, just as a lost Garrus Vakarian wanders the station, looking for some form of redemption or relief from the grief of losing Shepard. Something about the waif of a boy reminds him o
T, English, Adventure & Family, words: 1k+, favs: 61, follows: 109, 5/14/2018, Harry P., Voldemort, J. Garson, Garrus V.
581 To Break Thy Chains and Cycles » by WiseSilver Thought dead, Harry Potter reappears out of the Veil of Death, aged and far more powerful then before. After defeating Voldemort, Harry turns to his training under the Sith Lord Revan to conquer the Earth and spread humanity out into the stars. However he discovers that Humanity is not alone in the Galaxy and that an even darker evil than any Sith exsits. Harry x Fleur/ Grey Harry
T, English, Sci-Fi & Adventure, chapters: 8, words: 44k+, favs: 2k+, follows: 3k+, updated: 3/20/2018 published: 6/14/2013, [Harry P., Fleur D.]
25 Casus Belli by Pax Humana The Turians called their first meeting raiding a pirate base. The Alliance called First Contact a reason to go to war. A teaser for a longer story I have in the works.
T, English, Sci-Fi & Drama, words: 810, favs: 113, follows: 150, 10/12/2017
17 The Sisterhood » by Galaxy Brain The good of the many does not out way the good of the few. The Sisterhood lives by this creed and if necessary, they will use force to take down those who use their money and power to get away with crimes. It isn't a surprise when they agree to join Shepard when she hunts them down. Only question is what the hell are their names? Thane x Harriet (fem!Harry), Jeff x Luna
T, English, Humor & Romance, chapters: 4, words: 9k+, favs: 149, follows: 202, updated: 7/28/2017 published: 7/12/2017, [Harry P., Thane K.] [Luna L., Joker]
26 When You're Dead » by thetickingclock18 It's near end of the 22nd century and apocalypse is approaching. The galaxy is still unprepared, the Reapers are coming, and the only person who can stop them is... dead? Well, Mr. Potter will fix that.
T, English, Adventure, chapters: 2, words: 7k+, favs: 286, follows: 537, updated: 4/5/2017 published: 7/29/2016, [Shepard, Harry P.] Illusive Man
114 Three is a Prime Number » by reinforced hell It is well known that women live longer than men. It is also well known that wizards live much longer than muggles. What does this mean for witches? What does that mean for someone that can switch easily between the two genders?
T, English, Sci-Fi, chapters: 10, words: 29k+, favs: 576, follows: 849, updated: 11/29/2016 published: 8/17/2016, Harry P., Hermione G., Hannah A.
592 Reaping Destiny » by ShoredKafka Foolish humans, thinking to draw this soldier back to the realm of the living. Death does not allow souls to slip so easily from its grasp. But perhaps there is a way for all goals to be met. The Reapers presume to take my work upon themselves. I cannot teach them the error of their ways personally. It is time for my master to walk the mortal lands once more. MOD!Harry.
T, English, chapters: 10, words: 76k+, favs: 1k+, follows: 2k+, updated: 7/20/2016 published: 3/27/2015
23 Harbinger of Change » by MirtaLayl Based off Ascension by Ulstem. In the wake of the reapers victory over the citidal races Harry Potter decides to go back in time to before the second rise of voldemort to prevent the Final solution and ensure humanity is ready for the comeing of the reapers. H/HG Weasley/Bashing UNDER REWRITE SEE PROFILE
T, English, chapters: 2, words: 2k+, favs: 140, follows: 242, updated: 7/15/2016 published: 7/11/2016, [Harry P., Hermione G.]
2 Harry Potter and Mass Effect Crossover by johnny1701 With this story I want to find out what would change when Harry is the champion of God with a ship that can't be destroyed by anyone. If anyone wrights this story the rating can be any
K, English, Romance & Adventure, words: 300, favs: 24, follows: 18, 2/12/2016, [Harry P., Ashley W., J. Garson, Liara T'Soni]
17 hijo de la luna » by heromia you will need to find out yourselves
T, English, Romance & Friendship, chapters: 6, words: 3k+, favs: 16, follows: 23, updated: 7/1/2015 published: 6/11/2015, Harry P., Luna L., Admiral Hackett, D. Anderson
5 A Toymaker takes a stand (Mass Effect 3Harry Potter) by DaemonWelsh A toymaker who has lived since world war one takes a stand, and steps forth to combat the great threat to the galaxy.
T, English, Adventure & Sci-Fi, words: 2k+, favs: 61, follows: 79, 4/29/2015
19 Death Bringer by Vopopal Darkness will come from the Skies. For eyed monsters will bring destruction and misery... And all hope will be lost, if the Death Bringer rejects his fate... But if he accepts, the enemy's worlds will burn... The Master of Twig, Shred and Shard will bring victory. And Death will follow beside him...
T, English, Drama, words: 695, favs: 62, follows: 105, 4/13/2015, Harry P.
125 Ave Gaia » by Lavaflow Shanxi has been attacked by aliens. General Williams sees no option but eventual surrender. The magical world has... other ideas.
T, English, Sci-Fi, chapters: 2, words: 4k+, favs: 724, follows: 1k+, updated: 12/31/2014 published: 12/30/2014, Harry P.
2k+ Harry Potter: Geth » by mjimeyg During the final battle Harry is hit with a luck spell... but who exactly got lucky? Harry finds himself in the future fighting a new war when all he wants to do is have a nice and easy life. So he decides to have fun instead.
T, English, Humor & Adventure, chapters: 43, words: 276k+, favs: 7k+, follows: 3k+, updated: 11/19/2014 published: 10/27/2014, [Tali'Zorah, Harry P.] [Shepard, Ashley W.]