Harry Potter and Mass Effect Crossovers
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A Strange Future - An Empty Past by Twilit Bakery reviews
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
Rated: T - English - Romance/Adventure - Chapters: 2 - Words: 6,121 - Reviews: 17 - Favs: 148 - Follows: 264 - Published: 11/13/2019 - Harry P., Sara Ryder, Peebee S.
Getting Too Old For This 2: Electric Boogaloo by ManMadeOfLasers reviews
A continuation of the story begun in Getting Too Old For This. Harry Potter is back, and he is determined to use that whole 'Preparing for the Reaper War' thing as an excuse to cause as much trouble as he reasonably can. When enigmatic aliens from an unexplored region of space pop up and attack his latest home, he's got a new distraction. Rated 'M' for bad language and worse ideas.
Rated: M - English - Humor/Adventure - Chapters: 3 - Words: 34,503 - Reviews: 177 - Favs: 1,351 - Follows: 1,875 - Updated: 9/22/2019 - Published: 4/7/2019
Mass and Magic by Elissaria reviews
Humanity left Earth's atmosphere and discovered a galaxy larger and more dangerous than they could imagine, and Harry Potter discovered it right along with them. He set out to explore it and lose himself in its many systems, but sometimes he just can't help himself. Harry dives head first into fighting the good fight and is sucked so far in, he couldn't back out if he wanted to.
Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 33,904 - Reviews: 123 - Favs: 824 - Follows: 1,281 - Updated: 9/20/2019 - Published: 10/6/2018 - Harry P., J. Garson, Liara T'Soni
Like the Galaxy Wasn't Strange Enough Already by MojoTheSpaceMonkey reviews
Harry felt the need to start over after the wizarding world took that final step off the ledge to insanity. What better place to begin fresh than a new galaxy where he would be the only magical?
Rated: M - English - Humor/Adventure - Chapters: 25 - Words: 167,069 - Reviews: 836 - Favs: 2,462 - Follows: 3,063 - Updated: 9/6/2019 - Published: 6/7/2017
The Veil by Angler11235 reviews
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.
Rated: T - English - Adventure - Chapters: 5 - Words: 25,374 - Reviews: 66 - Favs: 418 - Follows: 709 - Updated: 6/18/2019 - Published: 5/19/2019 - Harry P., Liara T'Soni
Ex Astris Gloria by Altairadactyl reviews
When the true nature of the Veil of Death is finally discovered, Harry and Luna embark on a journey unlike anything they could have possibly imagined. An authorized reimagining of Lightning among the Stars. "f*ck this is good! and fun! I don't want to read the story this is based on because nothing shall distract me from this!" - papiliokaze
Rated: M - English - Sci-Fi/Romance - Chapters: 25 - Words: 91,947 - Reviews: 691 - Favs: 2,493 - Follows: 3,217 - Updated: 5/13/2019 - Published: 11/20/2014 - [Harry P., Luna L.] Miranda L., Aria T'Loak
Getting Too Old For This by ManMadeOfLasers reviews
Harry Potter finds himself, and his normal bi-polar luck, pulled out of a quiet retirement and into the limelight of the 23rd century. He finds a grand new stage upon which his 'saving-people-thing' can act, and before he can say no, is pulled into the middle of a galaxy-spanning conflict. Rated 'M' for bad words and ideas, re-worked and re-posted. Enjoy.
Rated: M - English - Humor/Adventure - Chapters: 18 - Words: 82,376 - Reviews: 556 - Favs: 2,732 - Follows: 2,304 - Updated: 4/15/2019 - Published: 7/31/2017 - Complete
Outtakes: Blue Magic by Tellur reviews
A folder for all those snippets that didn't make it into Blue Magic. Warning: Unbeta'd, pointless, and/or rambling.
Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 8,895 - Reviews: 24 - Favs: 117 - Follows: 140 - Updated: 2/24/2019 - Published: 5/19/2014 - [Harry P., Hermione G.] Liara T'Soni
Blue Magic by Tellur reviews
Ancient prophecies are set into motion when Liara meets Harry during an illegal observation of the recently discovered Humans. A vicious cycle has to be broken in order for the galaxy to advance to the next level. However Harry has some unfinished business on Earth and school to attend first. H/Hr pairing, Sibling relationship between Harry and Liara. First part of two.
Rated: M - English - Adventure/Sci-Fi - Chapters: 19 - Words: 228,162 - Reviews: 1469 - Favs: 3,078 - Follows: 3,952 - Updated: 2/24/2019 - Published: 10/26/2012 - [Harry P., Hermione G.] Liara T'Soni
Arcana Terra by The Oblivion Overlord reviews
Years long passed since the end of the Second Wizard War. Years have passed since magic was revealed to the mundane. Years passed, and finally an age long question was answered. "We are not alone." Though the question was answered in an aggressive manner as Shanxi is now under attack. It's time for the Empyreon of Arcana Terra, to take the stage. Harry/Mione/Daph/Toria/Gabi
Rated: M - English - Sci-Fi/Suspense - Chapters: 2 - Words: 13,746 - Reviews: 52 - Favs: 345 - Follows: 509 - Published: 2/23/2019 - Harry P.
Ragamuffins and Reapers by dead.but.true reviews
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.
Rated: T - English - Humor/Adventure - Chapters: 9 - Words: 29,981 - Reviews: 46 - Favs: 198 - Follows: 275 - Updated: 1/26/2019 - Published: 6/25/2018 - Harry P., OC
Elements of Attraction by Pax Humana reviews
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.
Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 24,757 - Reviews: 54 - Favs: 482 - Follows: 591 - Updated: 11/17/2018 - Published: 9/30/2018
Stay with me by nedra.auervara reviews
Harry ends up in Omega after going trough the Veil. What will he finding? Love? Family? M/M/M/M story
Rated: M - English - Hurt/Comfort/Romance - Chapters: 9 - Words: 12,117 - Reviews: 25 - Favs: 103 - Follows: 125 - Updated: 11/13/2018 - Published: 7/8/2018 - Harry P., Garrus V., Thane K., Javik
A Paragon of Magic by The Dark Warden reviews
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!
Rated: T - English - Adventure/Romance - Chapters: 5 - Words: 41,282 - Reviews: 100 - Favs: 295 - Follows: 436 - Updated: 8/30/2018 - Published: 7/15/2018 - [Liara T'Soni, Shepard]
Causing the ripple effect by alexandrovich977 reviews
An AU, on October 31st 1981, Voldemort attacks the potter twins, but something went wrong and he was destroyed, Harry and Michael survived, but Harry wasn't left untouched, whatever happen left him almost a squib. what will Dumbledore do? what will his parents do? what will happen to Harry now? mass effect/harry potter crossover, no paring (yet)
Rated: M - English - Chapters: 7 - Words: 8,662 - Reviews: 15 - Favs: 72 - Follows: 107 - Updated: 7/30/2018 - Published: 7/4/2018
Beyond The Veil by NaniteSystems reviews
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.
Rated: T - English - Adventure/Sci-Fi - Chapters: 21 - Words: 192,665 - Reviews: 1018 - Favs: 4,465 - Follows: 5,552 - Updated: 6/26/2018 - Published: 9/2/2016 - [Harry P., Shepard]
The Conflict Eternal by DagonKin reviews
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.
Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 2,769 - Reviews: 7 - Favs: 80 - Follows: 145 - Published: 6/17/2018
An Archangel's Vengeance by SoundedSummer reviews
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
Rated: T - English - Adventure/Family - Chapters: 1 - Words: 1,609 - Reviews: 11 - Favs: 65 - Follows: 114 - Published: 5/14/2018 - Harry P., Voldemort, J. Garson, Garrus V.
Casus Belli by Pax Humana reviews
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.
Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 810 - Reviews: 25 - Favs: 123 - Follows: 160 - Published: 10/12/2017 - Complete
The Sisterhood by Galaxy Brain reviews
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
Rated: T - English - Humor/Romance - Chapters: 4 - Words: 9,214 - Reviews: 17 - Favs: 164 - Follows: 219 - Updated: 7/28/2017 - Published: 7/12/2017 - [Harry P., Thane K.] [Luna L., Joker]
Harri Potter and the Lost Shepard by Sun-Tsu Toriden reviews
After firing the Crucible, Shepard is flung into a different universe, where she collides with Sirius Black just as he's thrown into the Veil, saving them both. How will a biotic Shepard affect this universe? One where the Chosen One happens to be a Hyacinth Potter, the Girl-Who-Lived? Rated M for swearing, violence and sex
Rated: M - English - Fantasy/Romance - Chapters: 15 - Words: 164,861 - Reviews: 205 - Favs: 561 - Follows: 802 - Updated: 6/27/2017 - Published: 4/30/2014 - [Ginny W., Harry P.] J. Garson
Legend of the Seeker by Duskborn reviews
"Before I say anything else, I want it on record that this was completely and provably not my fault. Sure, the Potter Luck may have contributed a little, but Hermione should have known better than to drop a mysterious magical artefact in my lap." Experimental WIP. Multi-Cross. Slash. Pairing Undecided.
Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 15,117 - Reviews: 23 - Favs: 99 - Follows: 141 - Published: 6/7/2017 - Harry P., Shepard
Madness Effect by ZenoNoKyuubi reviews
It's the year 2185CE. Commander Jane Shepard is recruiting members to bring with her on a mission against the Collectors and the Reapers. Among the candidates is Dr. Harry Potter, the reclusive mad scientist who has been missing for twenty years. Who knows what he was doing during that time? Rated M to be sure.
Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 81,420 - Reviews: 1495 - Favs: 6,047 - Follows: 7,014 - Updated: 6/4/2017 - Published: 6/10/2015 - Harry P., J. Garson
When You're Dead by thetickingclock18 reviews
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.
Rated: T - English - Adventure - Chapters: 2 - Words: 7,757 - Reviews: 26 - Favs: 294 - Follows: 545 - Updated: 4/5/2017 - Published: 7/29/2016 - [Shepard, Harry P.] Illusive Man
Three is a Prime Number by reinforced hell reviews
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?
Rated: T - English - Sci-Fi - Chapters: 10 - Words: 29,274 - Reviews: 120 - Favs: 619 - Follows: 891 - Updated: 11/29/2016 - Published: 8/17/2016 - Harry P., Hermione G., Hannah A.
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