Mass Effect Crossovers
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Remnants by General Rage reviews
From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 48 - Words: 1,001,801 - Reviews: 905 - Favs: 636 - Follows: 709 - Updated: 10/19 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
Saiyan Effect by bored peasant reviews
The Citadel Council weren't ready for a species with the power of the saiyans at their back.
Crossover - Mass Effect & Dragon Ball Super - Rated: T - English - Sci-Fi/Adventure - Chapters: 23 - Words: 137,772 - Reviews: 960 - Favs: 2,279 - Follows: 2,730 - Updated: 10/18 - Published: 8/9/2017 - Son Gohan, Son Goku, Vegeta
Drift Effect by Demon Eyes Laharl reviews
In the early 21st Century, Humanity made First Contact. By the end of it, they lost Earth. However, they survived, carving their place in the sea of stars, hoping one day to finally retake back their home world. The void, though, is a dangerous place. Another alien artifact was found near one of their border worlds, which would lead to another conflict.
Crossover - Mass Effect & Misc. Movies - Rated: M - English - Chapters: 17 - Words: 125,918 - Reviews: 106 - Favs: 306 - Follows: 436 - Updated: 10/18 - Published: 8/13/2023
Quintessence Effect Collective Rebirth by EvaShinobiKaiserKnight reviews
Two Years have passed since the Paladins and the Normandy had suffered the tragedy of loss. A year since the Altean's have begun to return to the galaxy after the second battle of the Citadel. But the Reapers are not done as the Paladins and a revived John Shepard must gather allies to face this threat. This is their Rebirth into a new world of wonders as Heroes. NOW FORM VOLTRON!
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Family - Chapters: 7 - Words: 82,869 - Reviews: 36 - Favs: 31 - Follows: 34 - Updated: 10/18 - Published: 8/11 - [OC, Princess Allura] [Ashley W., Shepard]
The Rook by Twisted Fate MK 2 reviews
On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, right in the midst of the Reaper War. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix. (Redo of an older story)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 31 - Words: 112,867 - Reviews: 197 - Favs: 645 - Follows: 929 - Updated: 10/17 - Published: 7/8/2022 - Rookie, Shepard
New Start Plus: in spaaaaace! by omaster43 reviews
Nick Walters and his merry band of misfits are back with a story about helping Shepard and crew fight giant eldritch robot abominations, most likely through Dumb magic and crazy shenanigans This is a continuation of my previous story, so reading that one first is recommended. but I'm not your nanny you wanna be confused that's your choice. Oc-insert, just came from Dragon age
Crossover - Game X-overs & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 18 - Words: 442,012 - Reviews: 154 - Favs: 396 - Follows: 468 - Updated: 10/17 - Published: 6/6/2023 - Garrus V., Tali'Zorah, Shepard
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: 23 - Words: 70,522 - Reviews: 31 - Favs: 77 - Follows: 84 - Updated: 10/15 - Published: 2/15 - [Ben T., Miranda L.] Ship, Shepard
A dawning Era by Lighting wolf knight
What happens when a regular battle between the Republic and Separatists sends Anakin, Obi-Wan, Ahsoka, and both the 501st and 212th into a new reality? Chaos... And a new destiny. Rated T for violence, death, and profanity.
Crossover - Star Wars & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 3,441 - Favs: 19 - Follows: 25 - Updated: 10/13 - Published: 9/24 - Luke S., Anakin Skywalker, OC, Vetra N.
The Relay 343 Incident by Mythicspider629 reviews
After the battle for the citadel and Jane Shepard's death, the galaxy has finally begun to calm down and besides a handful of people everyone has forgotten about the Reapers or chooses to ignore them this makes things easy for the citadel council and with the majority of the Normandy crew scattered throw out the galaxy there is no one left to stop the Batarians from being stupid
Crossover - Call of Duty & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 3,441 - Reviews: 4 - Favs: 22 - Follows: 30 - Updated: 10/13 - Published: 10/10 - N. Reyes, N. Salter, E3N/Ethan, Garrus V.
Maelstrom of the Andromeda Galaxy by nightwolf65 reviews
It's strange how one choice can effect everything around you. Naruto learned this the hard way, and now, he is light-years way from earth to find a new home for his people. Naruto x Harem
Crossover - Naruto & Mass Effect - Rated: M - English - Romance/Adventure - Chapters: 2 - Words: 22,947 - Reviews: 44 - Favs: 271 - Follows: 317 - Updated: 10/12 - Published: 1/28/2023 - [Sara Ryder, Naruto U., Vetra N., Peebee S.]
Mass effect: Beginning of the Heresy by islamov301 reviews
Captain John Shepard and his loyal crew stopped Saren and destroyed Sovereign, an ancient Reaper who was trying to take over the Citadel to bring his army here and destroy all intelligent life in the galaxy. Shepard knew that Sovereign's death was only the beginning of the war, but every night he wondered: "Why are the Reapers destroying life in the galaxy?"
Crossover - Warhammer & Mass Effect - Rated: T - English - Romance/Adventure - Chapters: 6 - Words: 26,934 - Reviews: 58 - Favs: 39 - Follows: 47 - Updated: 10/12 - Published: 9/8 - [Tali'Zorah, Shepard]
A little bit of heresy by Sheev314 reviews
The valiant John Shepard engages the greater daemon of Slaanesh known as Tali'Zorah.
Crossover - Warhammer & Mass Effect - Rated: M - English - Chapters: 1 - Words: 1,517 - Reviews: 3 - Favs: 2 - Follows: 3 - Published: 10/11 - Tali'Zorah, Shepard
The Second Contact war (Rewrite is underway check last chap for info) by Mythicspider629 reviews
After the battle for the citadel and jane Shepard's death the galaxy has finally begun to calm down and besides a handful of people everyone has forgotten about the Reapers or chooses to ignore them this makes things easy for the citadel council and with the majority of the Normandy crew scattered throw out the galaxy there is no one left to stop the Batarians from being stupid
Crossover - Call of Duty & Mass Effect - Rated: T - English - Chapters: 8 - Words: 12,792 - Reviews: 14 - Favs: 48 - Follows: 62 - Updated: 10/10 - Published: 3/28 - N. Reyes, E3N/Ethan, Garrus V., Councilor Sparatus
Imperium Effect: Terra Rising by Deathwatch Razgriz reviews
The long awaited sequel to UNSC Pheonix Rising. The fledgling Empire has survived it's birthpains, and now looks to the stars to rebuild what was once theirs...
Crossover - Warhammer & Mass Effect - Rated: M - English - Humor/Sci-Fi - Chapters: 21 - Words: 104,192 - Reviews: 369 - Favs: 550 - Follows: 675 - Updated: 10/9 - Published: 8/4/2017
Shepard's harem by phillip.madsen.52 reviews
Shepard sets out to rid the Galaxy of the Reapers and as well make his own harem from woman he captured in the process onboard the new advantage SR - 4 Normandy. his presonel body guards are Samara, Ashley Williams, Liara, and Miranda who protect him and service him in time of need. story will have Kelly Chambers, Gabby Daniels, Oriana Lawson, Tali, EDI, moriath, and others.
Crossover - Mass Effect & Dragon Age - Rated: M - English - Romance/Hurt/Comfort - Chapters: 7 - Words: 2,529 - Reviews: 5 - Favs: 78 - Follows: 78 - Updated: 10/9 - Published: 9/5/2017 - [Liara T'Soni, Shepard] Ashley W., Samara
Pixie Effect Preview by Spartastic 4 reviews
Preview for upcoming ME x Youjo Senki cross over
Crossover - Youjo Senki: Saga of Tanya the Evil & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 727 - Reviews: 10 - Favs: 12 - Follows: 19 - Published: 10/8 - Complete
Petroleum Effect by PetroleumHead reviews
A dark alternative Mass Effect universe with a little bit of XCOM and Cthulhu Mythos, along with some very sinister Care Bears. If humanity discovers that, in the right circumstances, petroleum can be used as a superior alternative to element zero, just how far will Earth's increasingly post-human, racist, xenophobic, authoritarian government go to obtain oil? (Complete 07-10-2024)
Crossover - Mass Effect & Cthulhu Mythos - Rated: M - English - Sci-Fi/Horror - Chapters: 22 - Words: 85,099 - Reviews: 41 - Favs: 58 - Follows: 68 - Updated: 10/7 - Published: 9/16/2023 - D. Anderson, Saren A., Miranda L., Shepard - Complete
Quintessence Effect Andromedas Defender by EvaShinobiKaiserKnight reviews
The Andromeda Initiative a pioneer's journey into the great unknown. On Arks the species of the milky way travel to parts unknown. But in such a journey dangers are sure to follow. So, if one were to make a journey one should always bring tools of defense. But the Initiative has a new defender aiding them, and his name is Vehicle Voltron the Invincible Defender of Andromeda System!
Crossover - Voltron & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 22,903 - Reviews: 4 - Favs: 15 - Follows: 16 - Updated: 10/7 - Published: 9/17 - Ginger, OC, Scott R., SAM
Odyssey of the Untrodden by RamPluto reviews
After centuries of relative peace and isolation, the races of Citadel Space have decided to make the bold and historic step of activating a dormant Relay. Unknowing stumblingly into a war that will change the shape of the entire galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 8,806 - Reviews: 46 - Favs: 163 - Follows: 265 - Updated: 10/5 - Published: 10/1 - Master Chief/John-117, Garrus V., Tali'Zorah, Liara T'Soni
Mass Effect: Spider and Wolf by Night Shadow76 reviews
The Spider-verse has been saved, the Inheritors had been defeated, and all is well. Well, except for one Spider. With his home gone and destroyed, he has no where to go, but with aid from Madam Web and The Other, he will have a new home, once that's on the edge of destruction. Now if only he could make sense of how Asari breeding works. Based loosely on the Inheritors storyline.
Crossover - Spider-Man & Mass Effect - Rated: M - English - Adventure - Chapters: 9 - Words: 57,175 - Reviews: 42 - Favs: 57 - Follows: 89 - Updated: 10/4 - Published: 6/12 - OC
Outlaws of the Verse (Unofficial Sequel: The Last Spartan by DinoJake) by Omniva Verse reviews
1000 years after the Reapers were reprogrammed, 3 powers fight for dominance in the galaxy. The Space Forces, Pirates, and of course The Outlaws. (Multi-Xover, AU, Unofficial Sequel): Ship's Crew and Lore, from various other franchises
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Family - Chapters: 11 - Words: 83,040 - Reviews: 4 - Favs: 16 - Follows: 15 - Updated: 10/3 - Published: 10/21/2023 - OC, OC, Master Chief/John-117, Shepard
The Galaxy's last shinobi by Kfbanime87 reviews
As for summary. His planet and people were gone. Destroyed by the reapers. But he survived. Now thousands of years in the future, Naruto must navigate a galaxy unfamiliar to him along with his ragtag crew of friends. All while he makes a name for himself and makes plans to destroy the reapers when they return
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Humor - Chapters: 7 - Words: 65,973 - Reviews: 434 - Favs: 849 - Follows: 925 - Updated: 10/2 - Published: 3/27/2023 - Naruto U., Shepard
The Traveler's Second Chance by Caldesan reviews
The Traveler has a different response to the Darkness. A story where the Guardians never accept the Darkness. The Traveler gave them a second chance, what do they do with it? Destiny shows up in Mass Effect. OC's for Destiny MC and Ghosts, different take on Destiny Lore
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Romance - Chapters: 9 - Words: 85,980 - Reviews: 24 - Favs: 136 - Follows: 187 - Updated: 10/1 - Published: 8/6/2023
Edge of the Abyss by bh18 reviews
As vengeance for the Skyllian Blitz, the Alliance anti-piracy campaign comes to Torfan. Their intent is to stifle piracy and slave trafficking in the Verge for years with this blow. It all goes wrong, and yet somehow succeeds because of something entirely unexpected.
Crossover - Mass Effect & Kantai Collection - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 18,568 - Reviews: 1 - Favs: 18 - Follows: 20 - Updated: 10/1 - Published: 9/16 - Shepard
Unknown Territory by giblo126 reviews
Earth was under siege by the Strogg, with no escape in sight. When the Turians find them, they're quick to jump in to the fray. But they just might open up a war none of them saw coming...
Crossover - Quake & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 8,182 - Reviews: 25 - Favs: 44 - Follows: 53 - Updated: 9/27 - Published: 6/15
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