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NieR: Ghosts of a bygone Era by The meme lord of the east reviews
After the fall of the Tower, androids are finally united and ready to explore space in search of friendly species, what they found was a galactic community of aliens with deeply rooted hatred for AI. Will the galactic community make an exception for the Androids? or will they indulge in petty wars while another threat looms on the horizon? Citadel vs Reapers vs Humans.
Crossover - Mass Effect & Nier - Rated: T - English - Sci-Fi/Supernatural - Chapters: 4 - Words: 21,629 - Reviews: 25 - Favs: 102 - Follows: 154 - Updated: 2/26 - Published: 10/16/2022 - 2B, 9S, YoRHa Commander
A Galaxy of Inheritors and Usurpers by HaloZealotDemon reviews
The Separatists destroy the Covenant in a brutal war, yet in the 2570s they persist in their efforts, but in two years they will be gone. However The Gods have other plans. The Migrant fleet decides that to escape through Relay 314 to unknown space, but meet, as LTCOL Church said "Sleep-deprived Titans with negative zero fucks to give." Heavy AU, Rvb elements, swearing.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 2 - Words: 17,002 - Reviews: 38 - Favs: 185 - Follows: 249 - Updated: 2/25 - Published: 12/25/2022 - Arbiter, T. Hood, Tali'Zorah, Councilor Sparatus
Mass Effect: Resurrection by RabidRabbids reviews
Shepard's life hadn't gotten any easier. Entire colonies were disappearing, millions of people gone. And that's not even mentioning she'd been dead for two years, but desperate times call for desperate measures, and Shepard is forced to work with Cerberus to find out what's behind the disappearances. Thankfully, she's got monsters backing her up. (Sequel to Monstrum Immortalem)
Crossover - Mass Effect & Guardians of the Galaxy - Rated: M - English - Sci-Fi/Adventure - Chapters: 22 - Words: 102,188 - Reviews: 4 - Favs: 17 - Follows: 20 - Updated: 2/24 - Published: 6/15/2021
A Knight of the Stars by TheBlindOrchid reviews
After barely escaping Order 66 with her life, Jedi Knight Kyra Katobi finds herself thrust into another grand calling, and another war. Perhaps this time, she can prevent the ones she cares about from dying. Takes place during Mass Effect 2/Post ROTS. Shepard x OC Mirialan Jedi. Reboot of my story A Knight's Redemption.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 2 - Words: 5,128 - Reviews: 4 - Favs: 17 - Follows: 30 - Updated: 2/22 - Published: 2/20 - OC, Shepard
On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 27 - Words: 297,181 - Reviews: 2064 - Favs: 3,758 - Follows: 4,745 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
SAGE EFFECT by The Guarding Dark reviews
Dying at the tender age of nineteen sucked. Being reborn In a doomed future. With a Pair of Rinnegan eyes, and an apocalypse bearing down on me. Sucked even more. And being born on Mindoir certainly didn't help matters. (Rated M for extreme blood and gore as of chapter ten, read at your own risk. Possible OCXFemshep.)
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Drama - Chapters: 19 - Words: 71,783 - Reviews: 442 - Favs: 1,109 - Follows: 1,434 - Updated: 2/21 - Published: 9/8/2014
The Sins of our Fathers by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew. Crossposted by myself, Jabber the very wocky on Ao3.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 3 - Words: 18,827 - Reviews: 91 - Favs: 301 - Follows: 447 - Updated: 2/20 - Published: 2/11 - Master Chief/John-117, Miranda K., Cortana
Sith Effect Episode I: First Contact by Metagray reviews
The ruins of Mars belonged not to the protheans but to humanity's ancestors, the Sith Empire. How will the Citadel react to a race that not only doesn't use mass effect technology, but is an anathema to their ideals. When the turians find the Sith, they face a war unlike any this galaxy has seen. The First Contact War has begun. Peace is a lie, there is only passion.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 79,162 - Reviews: 324 - Favs: 862 - Follows: 1,146 - Updated: 2/20 - Published: 12/3/2022 - D. Anderson, Admiral Hackett, Rael'Zorah, OC
The Return of Hope by Masso 2010 reviews
Commander Shepard is dead. Knowing that they needed someone to complete his work fighting against the Reapers, The Illusive Man set his sights on the next best thing, Humanities greatest hero. The only problem is that Superman gave up on hero work a long time ago but can the threat of galactic extinction be enough for him to once again step into the light.
Crossover - Superman & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 22 - Words: 190,792 - Reviews: 269 - Favs: 601 - Follows: 707 - Updated: 2/20 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
Space Effect by Foyden reviews
In an attempt to escape from the blood moons, Isaac and Carver launch a ship on a superluminal journey. At this time, Normandy explores one of the systems and discovers an unknown spacecraft.
Crossover - Mass Effect & Dead Space - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 15,854 - Reviews: 8 - Favs: 55 - Follows: 77 - Updated: 2/19 - Published: 2/16 - Shepard, Isaac C., J. Carver
Blue Animagus by Baron Zed reviews
Omake for Tellur's Blue Magic. Harry has some directed accidental magic. Hermione researches how to get what she wants.
Crossover - Harry Potter & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 11,076 - Reviews: 5 - Favs: 46 - Follows: 63 - Updated: 2/19 - Published: 2/15 - [Harry P., Hermione G.] Liara T'Soni - Complete
What Lies Beneath by Mandalorian Runescaper reviews
After Commander Shepard refuses her help on the Citadel, Tali is left having to find another way to complete her Pilgrimage. But there are other things in the galaxy just as terrifying as the Reapers. Mass Effect/Alien crossover, but with much more of a focus on the former. Takes place during ME1. Feedback is much appreciated!
Crossover - Aliens/Predator & Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 2 - Words: 12,809 - Reviews: 3 - Favs: 15 - Follows: 12 - Updated: 2/19 - Published: 12/17/2022 - Tali'Zorah, OC
Wasteland Galaxy by Redentor reviews
Matriarch Lantaya is a brave explorer from the Golden Age of Asari space exploration, and she wants to go home. The Lone Wanderer is a messianic cyborg from a world scorched in nuclear fire, and he wants to save the wastelands. Courier Six is a tribal postman who usurped control of an entire city state. He wants to eat people. Among other things. (Also available on Spacebattles)
Crossover - Fallout & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 42 - Words: 312,052 - Reviews: 41 - Favs: 208 - Follows: 262 - Updated: 2/19 - Published: 1/5/2022 - Lone Wanderer, Courier, OC
To Sail Among the Stars by How-not-to-do-something reviews
The Universal Century promised a new Era, and brought conflict. But the stars shine on, awaiting those who seek a new start. Crossposted from Ao3.
Crossover - Gundam UC & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 47,012 - Reviews: 19 - Favs: 54 - Follows: 76 - Updated: 2/18 - Published: 11/1/2022
A Whole New World by Spartan III Commando reviews
Noble six's story did not end on Reach, he escaped the doomed planet after saving the Pillar of Autumn, and he and 117 fought across each Halo, until an incident sent him to a whole new world. And he is wholly unprepared for the journey in store.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 35,994 - Reviews: 56 - Favs: 296 - Follows: 432 - Updated: 2/18 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
The third way by Konradoziom reviews
Mankind has finally united after a long time. To do this, it was necessary to discover the ruins of an ancient civilization and a wrecked spaceship. But the ship and the ruins have a completely different technology. Is it a gift from heaven that allows for enormous development in many directions, or is it a danger of their existence? Humanity will have to find out about it.
Crossover - Starblazers & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 82,160 - Reviews: 138 - Favs: 194 - Follows: 232 - Updated: 2/18 - Published: 2/20/2021 - Alex W./M. Kodai, A. Avatar/J. Okita, Nihlus K.
Dysfunctional Drift by Ricky Rabankenz reviews
After an ambush almost cost them everything, the mercenary group Dysfunction attempts a jump to safe harbor, but a catastrophic failure sees them flung into an unknown galaxy. What will they do with no money and no contacts.
Crossover - Mass Effect & Star Citizen - Rated: M - English - Sci-Fi - Chapters: 10 - Words: 21,084 - Reviews: 17 - Favs: 50 - Follows: 80 - Updated: 2/17 - Published: 10/19/2022
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: 3 - Words: 16,223 - Reviews: 5 - Favs: 40 - Follows: 51 - Updated: 2/17 - Published: 1/3 - Liara T'Soni, Miranda L., Shepard
Homo Proximus: The next step of Man (Avatar-Mass Effect-multicross) by Tiranus reviews
After the second defeat of RDA and the destruction of the colonization effort of Pandora, the Humans of Earth progress on their own. This is the story of the rise of the human race in a strange galaxy.
Crossover - Mass Effect & Avatar - Rated: M - English - Chapters: 10 - Words: 18,722 - Reviews: 31 - Favs: 83 - Follows: 106 - Updated: 2/17 - Published: 2/6
Operation Terra Sunrise HALO ( AU) x ME ( AU) by SimplyLaggy reviews
The Endless Swarm, known as the Reapers. Mostly defeated by the forerunners, yet after the death of almost all forerunners, they return. Now, the Reclaimers face them. Join Rebecca Shepard, a OMI Long-term undercover operative, as she goes undercover as Jane Shepard on Terra, Systems Alliance Earth, which was made by Ancient Humanity, as a ancient human remnant AI watches.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 2 - Words: 4,521 - Reviews: 7 - Favs: 41 - Follows: 65 - Updated: 2/16 - Published: 2/9 - Illusive Man, 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: 10 - Words: 36,153 - Reviews: 84 - Favs: 335 - Follows: 505 - Updated: 2/16 - Published: 7/8/2022 - Rookie, Shepard
The Rise of the Enclave by 6-4 pilot reviews
Stuck in a more peaceful galaxy, the Tau of the Farsight Enclave must still prepare themselves for war against the forces that conspire to destroy it. But as they fight for their existence, elements from their old home come to strengthen their power in said old home.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 19 - Words: 99,490 - Reviews: 138 - Favs: 325 - Follows: 365 - Updated: 2/16 - Published: 4/20/2020 - Chaos Space Marines, Tau, Legion, Shepard
The True Way Of The Sith - Part Two by Writing Shop 12 reviews
Sequel to The True Way Of The Sith. The Mass Effect Relay has been activated and a whole new galaxy of opportunity comes with it. What will Lily Potter, the Crown Princess of the Sith Empire, do with this new chance for adventure? And more importantly, will her father let her go into the unknown on her own? Citadel space beware, the Sith have come. (Harry x Harem) (Lily x Shepard)
Crossover - Harry Potter & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 3 - Words: 18,255 - Reviews: 229 - Favs: 1,679 - Follows: 2,192 - Updated: 2/15 - Published: 1/8 - Harry P., Liara T'Soni, Tali'Zorah, Shepard
Temporal Displacement with Gamer Characteristics by Keywielder reviews
As if shifting between the real world and Elite-verse when I had just graduated from Senior High for a few months wasn't enough, now they're telling me that it was a goddamned Beta THE WHOLE TIME, after FIVE FUCKING YEARS of God knows what in the actual fuck and ONLY NOW I get the full release! Fuck it. Let's just roll with this crap... Gamer, OC, SI. Current World: Mass Effect.
Crossover - Mass Effect & Elite Dangerous - Rated: M - English - Sci-Fi - Chapters: 4 - Words: 44,669 - Reviews: 38 - Favs: 213 - Follows: 284 - Updated: 2/15 - Published: 11/20/2021
star wars the old republic naruto story by dragons 23 reviews
naruto was left on the steps of the jedi temple and is found by grand master and is the adopted by jedi knight satele shan and become a jedi padawan to master kassandra romance be lana beniko and jaesa and all so my oc kara lockwood
Crossover - Mass Effect & Star Wars - Rated: M - English - Sci-Fi/Romance - Chapters: 6 - Words: 6,248 - Reviews: 4 - Favs: 4 - Follows: 5 - Updated: 2/15 - Published: 10/16/2022 - HK-47, Nadia G., Lana Beniko, BD-1
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