Mass Effect Crossovers
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Warcraft Effect Neko ver by UltraZeta120 reviews
A young soul was given a second chance by the Grim Reaper, to give them aid with the current problems with the world of Mass effect. Granted the power of Gamer and a new form, along with an army, she will be the fiery blade that protects the weak and cull the wicked of this galaxy. RTS Gamer, Nekomata Youkai protagonist with Warcraft 3 powers/army (thicc busty OCs).
Crossover - Warcraft & Mass Effect - Rated: M - English - Fantasy/Adventure - Chapters: 3 - Words: 14,976 - Reviews: 3 - Favs: 26 - Follows: 33 - Published: 1/15 - OC
Mass Wars Episode II by Fantasymaker76 reviews
Five Years have past since the destruction of the Normandy and the death of Commander Shepard. Now a new order is rising in the unmapped regions of the galaxy which is leaving unease in both the Republic and the Citadel. Determined to find out what is going on, a pro-human organisation has made plans to find out what this mysterious group wants.
Crossover - Mass Effect & Star Wars - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 49,478 - Reviews: 24 - Favs: 49 - Follows: 53 - Updated: 1/14 - Published: 3/13/2023
Ark effect Remake by EclipsePheniox reviews
After the attack on the Collector base failed, the Normandy SR-2 found themselves on Ark a planet roaming with primordial beasts. But as their Commander returns, things become more complex as they learn about Ark and the reason they are there and the purpose of the world.
Crossover - Mass Effect & ARK: Survival Evolved - Rated: T - English - Adventure/Sci-Fi - Chapters: 16 - Words: 45,798 - Reviews: 18 - Favs: 84 - Follows: 100 - Updated: 1/13 - Published: 1/3/2023 - Liara T'Soni, Miranda L., Shepard
Maelstrom Effect Book 2: Shadows of Crimson by godospartan the Kitsune reviews
After Soverign's defeat, the sibling Commanders left to clean up the mess it left behind. But one of them was struck down by an unknown force. The next 2 years they go in search of the ones responsible, unknowing that a secret group is bringing their sibling back to life to fight the Reapers again. How will they react when they meet again? NaruxTali, Shakarian, Mature content later
Crossover - Naruto & Mass Effect - Rated: M - English - Sci-Fi/Hurt/Comfort - Chapters: 16 - Words: 183,558 - Reviews: 85 - Favs: 369 - Follows: 421 - Updated: 1/13 - Published: 12/25/2019 - Naruto U., J. Garson, Garrus V., Tali'Zorah
Mass Effect: Legend of Vader by Gaming Lichdom reviews
Darth Vader attempts to resurrect his deceased wife through an ancient ritual, but is pulled into the machine and transported to an unknown planet. On his quest to return home, he comes across a Quarian woman named Tali'Zorah, who just so happens to have information about a rogue Spectre Named Saren. The two form a strange duo as they venture on a quest to save the galaxy.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 13,395 - Reviews: 31 - Favs: 136 - Follows: 213 - Updated: 1/11 - Published: 10/30/2024 - [Darth Vader, Tali'Zorah] Garrus V., Shepard
As The Wind Abates by DingusMacGoo reviews
After witnessing the death of his oldest friend, an immortal Harry Potter turns to the stars in an attempt to find meaning in his life.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 40 - Words: 94,593 - Reviews: 331 - Favs: 1,056 - Follows: 1,473 - Updated: 1/10 - Published: 2/6/2024 - Harry P., J. Garson, Shepard
Exodus Into Fire by keita52 reviews
When the Battlestar Galactica, guided by Starbuck, makes the jump towards Earth, they find a planet encircled by giant black ships and a woman calling herself Commander Shepard telling them to leave before the Reapers attack them. With Earth not the safe haven they'd hoped for, the Colonial Fleet and their Cylon allies struggle to make a place for themselves in this new universe.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 19 - Words: 76,064 - Reviews: 125 - Favs: 334 - Follows: 477 - Updated: 1/10 - Published: 11/12/2014 - L. Adama/Apollo, K. Thrace/Starbuck, Ashley W., Shepard
Great Power Comes With Great Cost by Starco101 reviews
Commander Jane Shepard’s on a mission to assemble a crew to bring the fight to the Collectors. Unfortunately she’d wish that were that simple when she starts to encounter recruits with incredible abilities with “incredible” quirks. Will Shepard retain her sanity or go max managing her new band of recruits?
Crossover - Halo & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 1 - Words: 2,325 - Reviews: 4 - Favs: 13 - Follows: 11 - Published: 1/10 - Shepard, Master Chief/John-117, OC
Mass Avengers Effect by JungleFurious reviews
It's been thirty years since Thanos, since the endgame battle between his forces and the Avengers. Now the majority of the Avengers have retired, but the mantles have been filled by their children, now full-grown adults. When a portal sends a few of the Avengers to a new universe, things are going to get hectic. The world of Mass Effect will never be the same.
Crossover - Mass Effect & Avengers - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 79,789 - Reviews: 40 - Favs: 135 - Follows: 173 - Updated: 1/9 - Published: 6/19/2021 - [Shepard, Liara T'Soni] [OC, Tali'Zorah]
Eezo-Flux Theory by BrozTheBro reviews
Humanity found out that it was not alone in the galaxy. It had earned its place in the galactic community, and made it its goal to strive for unity and prosperity. But the barrier between galaxies is fickle, and mankind will find itself staring down its counterpart. The Citadel Council comes face-to-face with the remnants of the Human Domain and the Persean Sector at large.
Crossover - Mass Effect & Starsector - Rated: M - English - Sci-Fi/Adventure - Chapters: 15 - Words: 73,275 - Reviews: 66 - Favs: 138 - Follows: 194 - Updated: 1/8 - Published: 3/11/2024 - Garrus V., Liara T'Soni, Admiral Hackett, C. Pressley
First Contact with the Angels by AntrosAscended reviews
Horus rebelled against the machinations of Chaos and sacrificed himself for the Galaxy; Lorgar's Rebellion finally seems to have become a distant memory for the Imperium. On the 30th Anniversary of the Warmaster's death, a new swath of space would be found by accident, setting new possibilities or new failures in motion. I'm Antros. I'm back to remake my first story
Crossover - Warhammer & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 7 - Words: 75,044 - Reviews: 167 - Favs: 419 - Follows: 558 - Updated: 1/8 - Published: 1/10/2024 - Space Marines, Primarch/s, Councilor Tevos, Councilor Sparatus
Expanded sky by mantale3 reviews
The alliance encounter the aliens of the Milky Way Galaxy.
Crossover - Firefly & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 2 - Words: 1,752 - Reviews: 7 - Favs: 10 - Follows: 13 - Updated: 1/6 - Published: 11/12/2024
Mass Effect 10 Ben Second Chance by benguin reviews
Here is a world for both Ben 10 and mass effects Fans, but basically it like any story where ben world is gone and lives in another universe to move on from the pain. I do not Own Ben 10 and Mass effect. They are owned by they respected properties of Man of Action and Bioware. Please support the official release.
Crossover - Ben 10 & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 25 - Words: 78,730 - Reviews: 33 - Favs: 91 - Follows: 94 - Updated: 1/6 - Published: 2/15/2024 - [Ben T., Miranda L.] Ship, Shepard
I'm Nobody by free man writer reviews
He didn't have anything when he was born. Just a name and number. But over time, what he had grew. He, with his friends began to understand that there was more to their existence then just their name and number. They will prove that they were meant to be real. To exist. To become something more than just a Nobody. Co-written and created with Jebest4781. Fem Shepard. Now on Ao3.
Crossover - Kingdom Hearts & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 49 - Words: 841,020 - Reviews: 754 - Favs: 757 - Follows: 790 - Updated: 1/5 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
Echoes of the Forerunners: A Covenant Unveiled by Phorus Aedelmaer reviews
The Covenant War erupts with far-reaching consequences across two universes. As the UNSC struggles to survive, they form an unexpected alliance with the species of the Citadel Council. Creative liberties will be taken with the timelines, events, and characters of both franchises.
Crossover - Halo & Mass Effect - Rated: K+ - English - Sci-Fi - Chapters: 17 - Words: 33,312 - Reviews: 158 - Favs: 177 - Follows: 256 - Updated: 1/4 - Published: 9/8/2024
Rising from the Embers of Sera by thehappy reviews
The people of Sera rebuild, spreading to the stars. Wars will be waged. Peace will be sought. The Coalition has risen from the ashes to take their right to exist in the galaxy. They will survive...no matter the cost.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 30 - Words: 454,201 - Reviews: 623 - Favs: 798 - Follows: 946 - Updated: 1/3 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
One Small Step by Bardothren reviews
Izuku opens a door inside a Turian ship and it all goes downhill from there.
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: K - English - Sci-Fi/Drama - Chapters: 7 - Words: 16,302 - Reviews: 40 - Favs: 104 - Follows: 128 - Updated: 1/2 - Published: 6/11/2024 - Izuku M., Nezu/The Principal - Complete
The Last Shinobi by derTraeumer reviews
Fifty thousand years ago, the shinobi world fell to the Reapers, their potential too great a threat. Akane Uchiha, the last surviving kunoichi, awakens in the modern galaxy on Eden Prime. Joining Commander Shepard's fight, she blends ancient ninja skills with advanced tech to preserve this cycle from annihilation and ensure no world shares her home's tragic fate.
Crossover - Naruto & Mass Effect - Rated: M - English - Tragedy/Mystery - Chapters: 42 - Words: 224,258 - Reviews: 58 - Favs: 203 - Follows: 255 - Updated: 1/1 - Published: 7/4/2019 - OC, Admiral Hackett, Shepard
Galactic Conflicts: Tales of First Contact by TheDoctor1998 reviews
Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 15 - Words: 84,393 - Reviews: 379 - Favs: 582 - Follows: 806 - Updated: 12/31/2024 - Published: 2/6/2023
Were it So Easy by Sigma0327 reviews
Six's life was an unending war, a crucible of unrelenting tenacity and unyielding resolve in the face of impossible odds. Every battle he fought, bullet fired, enemiy eliminated, had been a prelude to this moment. Now, once more, he stood among the few who shielded Earth from her enemies. This was to be his final stand—a final battle where the outcome seemed inevitable. or was it?
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 14 - Words: 144,131 - Reviews: 257 - Favs: 1,152 - Follows: 1,630 - Updated: 12/29/2024 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
Amongst These Stars by Warlock99 reviews
To bring a revolution that spans the galaxy is a feat very few can accomplish. To create an Empire that covers an entire galaxy is something only Naruto's people can accomplish. Amongst these stars they would rule and the reapers would feel their wrath.
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure - Chapters: 6 - Words: 16,477 - Reviews: 39 - Favs: 202 - Follows: 273 - Updated: 12/26/2024 - Published: 2/22/2024 - Naruto U., Shepard
The Effect of a Horse and a Dragon by Vimesenthusiast reviews
A different decision right after being cursed leads to a very different Ranma showing up in Nerima. When he goes after Herb to beat some sense into him Ryoga takes the chance to get rid of his rival once and for all, sending both combatants to the Mass Effect universe. What changes will two martial artists and their use of ki have on the coming conflict? RanmaXTaliXKasumiXSama
Crossover - Ranma & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 12 - Words: 253,006 - Reviews: 685 - Favs: 2,406 - Follows: 2,505 - Updated: 12/24/2024 - Published: 2/2/2014 - Ranma, Kasumi G., Tali'Zorah, Samara
Quintessence Effect: Lost Paragon and Found Renegades by EvaShinobiKaiserKnight reviews
Alone that was where Lotors Generals now stood in this cycle. Betrayed by one they could trust, alone with none of their people to interact with, survivors of a genocide. For their crimes against the Citadel these four were imprisoned on Fohl Prime, Renegades some would call them. But can these Renegades save a colony and become Paragons? Let us find out for ourselves shall we.
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Chapters: 2 - Words: 10,630 - Reviews: 6 - Favs: 10 - Follows: 11 - Updated: 12/24/2024 - Published: 12/6/2024 - James V., Acxa, Ezor, Narti
Earth's Defense by shdowstep reviews
It was too late. Despite the warnings given, the Reapers made their way to Earth, and the Harvest began once more. But the Reaper's miscalculated. Humanity was not alone on Earth - Gaia and Alaya existed as well. And they already had various plans in place to survive an extinction level event.
Crossover - Fate/stay night & Mass Effect - Rated: T - English - Chapters: 4 - Words: 12,850 - Reviews: 115 - Favs: 487 - Follows: 647 - Updated: 12/23/2024 - Published: 2/5/2022
Mortal Desperations by Solthrin reviews
Arcturus Magnus, Sagittarum of the Legio Custodes, has fought for years within the webway and the Impossible City. Upon taking a near-fatal wound, the Emperor Himself removes Arcturus from the front, sending him instead to bring forth reinforcements from the Mechanicum. When something goes wrong during the return, where does this Custodian find himself?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 94,743 - Reviews: 159 - Favs: 698 - Follows: 987 - Updated: 12/23/2024 - Published: 1/17/2023 - Adeptus Mechanicus, Tali'Zorah, Shepard
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