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Stellar Effect by Brandon Storm reviews
The Reapers trap was perfect in its design. Their execution refined over billions of years, their technology refined since the dawn of time itself. Right up until Someone Broke the Trap!
Crossover - Mass Effect & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 50 - Words: 221,660 - Reviews: 209 - Favs: 328 - Follows: 445 - Updated: 2h - Published: 8/7/2022
Of Shepards and Imperials by Mandrake109 reviews
One of the oldest living perpetuals along with the remains of an inquisitorial retinue are transported into an alternative past where aliens are not simply foes to slay but friends and allies to mankind. For the perpetual it's a nice change of pace for the others? Well they may learn that co-existence might not be such a bad thing after all... Rated M for obvious reasons.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 102,160 - Reviews: 74 - Favs: 199 - Follows: 279 - Updated: 6h - Published: 3/7/2019 - Imperial Guard, OC, Shepard
Place of Our Legacy by firstprime1230 reviews
Earth has been overrun by the forces of the Ori. Beaten, demoralized and on the run in the Ancient city of Atlantis the survivors of Earth make a desperate gamble to save what little they have left. Arriving in a galaxy so different from their own, can they uphold the legacy left to them by the races that came before? And save a galaxy doomed to a suffer a fate worse than death.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 194,967 - Reviews: 470 - Favs: 1,000 - Follows: 1,376 - Updated: 17h - Published: 4/30/2020
The Milky Way's Solo by Likeableheart reviews
V finds himself away from Night City and dealing with a whole new environment where there's aliens, politics, and whole new planets. How will the former Corporate rat turned netrunning solo react to this? Will the galaxy notice this new individual, or will he fade as a Mr. Nobody?
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 22,662 - Reviews: 61 - Favs: 306 - Follows: 442 - Updated: 18h - Published: 1/20/2021 - OC, V, Johnny Silverhand
Atonement by RJM3994 reviews
After finally dying, he expected to find peace. But he must atone for the mistakes of his life in this new universe. Revan in Mass Effect and HK-47 too for chaos.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 2 - Words: 1,742 - Reviews: 3 - Favs: 7 - Follows: 8 - Published: 21h - [Revan, J. Garson] HK-47
The Wayfarer by Umbral Choir reviews
In the twilight of the universe the Ihan-rii, a forgotten sect of protoss, face an uncertain future in a realm consumed by the hounds of the void and their dark master. Xiltar, the last member of the umbral choir will guide his people into a fate beyond the designs of the Xel'naga only to find that he traded one war of annihilation for another.
Crossover - StarCraft & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 45 - Words: 198,328 - Reviews: 48 - Favs: 106 - Follows: 131 - Updated: 7/14 - Published: 2/5
The Serpent's Venom by Lighting wolf knight reviews
All Alpha Legion warbands were different... And insanely weird... They are no different. Rated T for violence, profanity, and death. Doesn't entirely follow lore. Focusing more on Alpha Legion's infiltration and planning abilities and uncertain allegiances to chaos and the imperium and chaos... No OP Chaos Marines.
Crossover - Warhammer & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 2,931 - Reviews: 1 - Favs: 5 - Follows: 6 - Updated: 7/14 - Published: 7/8 - Chaos Space Marines, OC, Admiral Hackett, Illusive Man
Feared Reverence by ayab reviews
376 years after the battle between heaven and earth. Two humans have achieved godhood. Using their power to guide humanity to the stars. How will the galaxy react to see a species so advanced yet so primitive? So powerful yet not wanting to use their power. They are what the citadel race aspires to be and hates because of their jealousy. (up for adoption.)
Crossover - Naruto & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 8 - Words: 21,192 - Reviews: 70 - Favs: 206 - Follows: 281 - Updated: 7/14 - Published: 1/14
Paracausal Effect by Aquilarion reviews
After discovering what Light and Dark truly were— after finding Balance in their universe, Elsie Bray discovers a secret to the Guardian that forces him to act. Forces them both to act. The Darkness moves once again. Only this time, not in their universe. [FemShep] [M for safety]
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 31,014 - Reviews: 16 - Favs: 73 - Follows: 117 - Updated: 7/13 - Published: 3/12 - [Exo Stranger, Guardian] Liara T'Soni, Shepard
A Bar at the End by n7kairos reviews
Two soldiers at the end of their wars meet at a bar. Just not the ones they were expecting.
Crossover - Call of Duty & Mass Effect - Rated: T - English - Angst/Sci-Fi - Chapters: 1 - Words: 822 - Reviews: 1 - Favs: 3 - Follows: 6 - Published: 7/12 - Cpt. John Price, Garrus V., Shepard - Complete
Angelus Sanguis Humani by Ronin2106 reviews
Sanguinius manages to overcome Horus and with his final breath, he saves his sons and the Imperium, yet his soul is not taken by Dark Gods. Instead, he is reborn in a universe, where Humanity is only making it's first steps into the Galaxy, and is fighting the First Contact War. Imperium and Emperor are gone, but Humanity is here, and the Great Angel will never abandon it.
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 10 - Words: 101,014 - Reviews: 645 - Favs: 924 - Follows: 1,149 - Updated: 7/11 - Published: 6/10 - Primarch/s, D. Anderson, Admiral Hackett
Rise of the Federation Alliance: Federation-Citadel War by SimplyLaggy reviews
( AU) A Citadel Council patrol fleet stumbles upon a Starfleet exploratory fleet who just discovered a mass relay, and fires on it, sparking a war on levels beyond the Citadel's imaginations! Meanwhile, Reapers detect these newcomers, and with their superiority complex, attack early! Meanwhile, Q sits on a beach chair munching popcorn, watching, and laughing!
Crossover - StarTrek: The Next Generation & Mass Effect - Rated: T - English - Chapters: 4 - Words: 8,143 - Reviews: 39 - Favs: 149 - Follows: 215 - Updated: 7/11 - Published: 2/21 - J. Picard, Admiral Hackett, Shepard
Mass effect: the Sovereign crisis 1 by micelzod reviews
After discovering a cache of prothean technology on Mars in 2090, humanity is spreading to the stars; the newest interstellar species is struggling to carve out its place in the great galactic community. But no one ever asks, What happened to the Prothean? It's up to a brave few to uncover a dark truth while stopping a rogue agent from carrying out his unknown master's plan.
Crossover - Mass Effect & EndWar - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 7,481 - Reviews: 1 - Favs: 8 - Follows: 7 - Published: 7/10 - [Ashley W., OC] Shepard
When magic decides one war isn't enough by Alykto reviews
Following Voldemort's return after the Triwizard Tournament, Dumbledore realized he couldn't possibly handle the incoming conflict on his own. He needed a general to prepare the war. His summoning ritual then dragged Commandant Shepard, Specter and N7 Alliance Marine fighting the Reapers to 12 Square Grimmault.
Crossover - Harry Potter & Mass Effect - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 3 - Words: 4,320 - Reviews: 5 - Favs: 8 - Follows: 16 - Updated: 7/10 - Published: 6/29 - Harry P., Ron W., Hermione G., Shepard
Star-Bound by The Incredible Muffin reviews
Some destinies are written out centuries, or even millennia, ahead of time. However, when destiny is derailed, new plans have to be implemented. Sometimes, that involves ripping someone away from the peaceful end they seek and thrusting them into a tide of never-ending war in order to fix what can never be repaired.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Supernatural - Chapters: 38 - Words: 260,949 - Reviews: 1091 - Favs: 1,391 - Follows: 1,711 - Updated: 7/10 - Published: 5/29/2019
Never Fade Away by Ideas-Guy reviews
Lives are cheap and money is everything. That's how the orphanage made its money - lending out children for human expirementation. L is an old man at the age of fifteen and he knows he doesn't have much time left. All that mattered was getting out, but he soon learns that the world is a lot bigger than Night City. And that the galaxy is a lot bigger than Earth.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Adventure/Drama - Chapters: 30 - Words: 148,277 - Reviews: 237 - Favs: 787 - Follows: 888 - Updated: 7/10 - Published: 10/31/2022 - Shepard, V
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: 28 - Words: 232,467 - Reviews: 316 - Favs: 681 - Follows: 788 - Updated: 7/10 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
Hero From A Distant Galaxy (Before, G Hero's Effect) by fitoxi reviews
'Returner':This Quirk sent Izuku to another world, only to return him to Quirk world aferwards, retaining all the powers he had obtained.Unfortunately, no one will believe him if he tries to reveal the origin of his others Quirks,'Biotics/Omnitool' and much less will they believe the tale that he was the greatest hero of an entire galaxy[Izuku OOC/Initially,Vigilant/only2 Romances]
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Romance - Chapters: 7 - Words: 86,717 - Reviews: 38 - Favs: 254 - Follows: 316 - Updated: 7/9 - Published: 3/3/2022 - [Liara T'Soni, Himiko Toga, Izuku M.] Ochako U.
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.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 8 - Words: 70,555 - Reviews: 302 - Favs: 915 - Follows: 1,278 - Updated: 7/9 - Published: 2/11 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
Cursed by Hookshot25 reviews
Clayton Carmine has only known hate and carnage for so many years. But once he survives the war he hoped to die in, things get strange. When people need help he isn’t one to shy away, and while helping Baird he gets sent to a place in dire need of a man like him. A man that can’t be claimed by death as easily as his kin.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 48,632 - Reviews: 6 - Favs: 38 - Follows: 60 - Updated: 7/9 - Published: 4/10 - C. Carmine, Samantha B./Sam, Shepard, Tali'Zorah
Saga of the Bridgers-Year 6 by Ganel750 reviews
A new Menace. As the war between the Coalition and the Empire enters a standstill, entire colonies at the edge of Wild Space start disappearing. When a new enemy will prove to be a threat to both sides in the conflict, enemies will have to join forces to prevent this new menace from conquering the galaxy.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 34 - Words: 191,134 - Reviews: 7 - Favs: 26 - Follows: 21 - Updated: 7/8 - Published: 8/17/2022 - Thrawn, OC, Ezra B., Shepard
Things the United Nations is Banned from doing (The List!) by vmoneywashere reviews
A new galactic power, the Solar United Nations, has taken a mantle alongside the Citadel Council. Two powerful forces acting in concert to form a stable, galactic community- Where did these space creatures come from? What do you mean the Humans Summoned spirits- No! Don't Adopt the Quarians! (One-shot, but can expand later).
Crossover - Mass Effect & Stellaris - Rated: T - English - Humor/Sci-Fi - Chapters: 4 - Words: 4,559 - Reviews: 9 - Favs: 70 - Follows: 89 - Updated: 7/7 - Published: 5/24 - Councilor Tevos, OC
Destiny Lost by Twisted Fate MK 2 reviews
The Gods left remnant together, with the statement they would never return to it or influence it. Only, that wasn't true, was it? The God of light, ever the hypocrite and liar, didn't abandon Remnant. Instead, he reincarnated someone to do his bidding and bring Remnant to them. Cue, the now dead Pyrrha Nikos and the God of Darkness' ideas. / Supporter Requested by Espacole & Spork
Crossover - Mass Effect & RWBY - Rated: M - English - Adventure - Chapters: 75 - Words: 301,774 - Reviews: 780 - Favs: 769 - Follows: 1,057 - Updated: 7/4 - Published: 5/5/2019 - Legion, Pyrrha N., Penny P., God of Darkness
Assassin's Creed: The Mass Effect by TomTheCat1 reviews
The Reaper War, 2186. Even in the face of complete annihilation, The Milky Way still suffers from infighting, some of which has been raging for thousands of years. As the last surviving member of the Assassin Brotherhood, Abigail has one chance to bring an end to the Templars, and to Cerberus.
Crossover - Mass Effect & Assassin's Creed - Rated: T - English - Romance/Adventure - Chapters: 28 - Words: 52,325 - Reviews: 9 - Favs: 61 - Follows: 77 - Updated: 7/3 - Published: 6/23/2019 - Shepard, Samantha T., Kai Leng, OC
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 21 - Words: 113,263 - Reviews: 118 - Favs: 262 - Follows: 391 - Updated: 7/2 - Published: 2/21/2022
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