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Things the United Nations is Banned from doing (The List!) by vmoneywashere
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: 1 - Words: 1,956 - Favs: 14 - Follows: 16 - Published: 6h - Councilor Tevos, OC
Enduring the Flames of War by Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 49 - Words: 731,834 - Reviews: 2511 - Favs: 3,837 - Follows: 4,653 - Updated: 14h - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard
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: 4 - Words: 32,310 - Reviews: 3 - Favs: 27 - Follows: 37 - Updated: 16h - Published: 4/10 - C. Carmine, Samantha B./Sam, Shepard, Tali'Zorah
Into Darkness by Beltran reviews
The Normandy has been tasked with investigating a strange distress signal yet what they found was not something any were prepared for.
Crossover - Mass Effect & Dead Space - Rated: M - English - Horror/Sci-Fi - Chapters: 2 - Words: 6,846 - Reviews: 3 - Favs: 12 - Follows: 14 - Updated: 18h - Published: 5/22 - Tali'Zorah
The Dream Effect by DarkPhoenixLady reviews
A rewrite of the original dream effect. Set hundreds of years after the Deep Dream series. Humanity has been slowly expanding across space, and has just encountered the citadel races. After a rocky start, the two groups start to co-exist. Then someone attacks Eden Prime and tries to remove the prothean beacon.
Crossover - Harry Potter & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 11 - Words: 52,301 - Reviews: 2 - Favs: 24 - Follows: 28 - Updated: 5/23 - Published: 5/9 - Liara T'Soni, Tali'Zorah, Shepard
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: 3 - Words: 13,306 - Reviews: 2 - Favs: 13 - Follows: 15 - Updated: 5/23 - Published: 3/13
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: 71 - Words: 287,789 - Reviews: 751 - Favs: 754 - Follows: 1,036 - Updated: 5/22 - Published: 5/5/2019 - Legion, Pyrrha N., Penny P., God of Darkness
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: 24 - Words: 121,511 - Reviews: 170 - Favs: 675 - Follows: 778 - Updated: 5/22 - Published: 10/31/2022 - Shepard, V
Whitley Shepard: The Commander's Brother by Hadrian Kallig reviews
Whitley Schnee couldn't take it anymore. The soul crushing loneliness was too much for the boy, and he ended up taking his life. However, in a twist of fate, an amnesiac Whitley ends up being found by Hannah Shepard. Years later, as a fresh faced engineering graduate, Whitley Shepard decides to join his sister's mission to hunt down Saren.
Crossover - Mass Effect & RWBY - Rated: M - English - Romance/Family - Chapters: 18 - Words: 40,560 - Reviews: 129 - Favs: 339 - Follows: 390 - Updated: 5/21 - Published: 4/20/2021 - [Garrus V., Shepard] [Whitley S., Tali'Zorah]
Daily War With Shipgirls by Starco101 reviews
Story inspired by “Daily War With Monster Girls”! In the midst of the cruel Human-Covenant War, a new type of intelligence was created. Artificial constructs armed with the power of warships compressed into the size of human girls called “ship girls”. Can humanity’s greatest heroes keep their sanity with these unlikely companions? Halo/Mass Effect/Monster Musume crossover!
Crossover - Mass Effect & Halo - Rated: M - English - Adventure/Mystery - Chapters: 1 - Words: 6,206 - Reviews: 3 - Favs: 14 - Follows: 14 - Published: 5/21 - Master Chief/John-117, OC, Cortana, Shepard
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: 42 - Words: 187,353 - Reviews: 189 - Favs: 289 - Follows: 405 - Updated: 5/21 - Published: 8/7/2022
The Dark Effect by VLFBERHTwolf reviews
At the risk of Eternal boredom Dante Sparda and V join The crew of the Normandy and venture into the darkest corners of the galaxy. On a mission to stop the Collectors, Shepard comes face-to-face with God-like beings with powers beyond imagination and Dante faces old enemies of his past, Thereby propelling all of them into an epic game of life and death.
Crossover - Devil May Cry & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 16,213 - Reviews: 4 - Favs: 28 - Follows: 40 - Updated: 5/20 - Published: 5/13/2022 - Dante(DmC), Vergil(DmC), V, Shepard
I'll Always Find You by Scififan33 reviews
Sora T'Soni just wanted to keep her family safe, to put her skills to use for her people, so she joined the military. Riku Yamada was running from a past he wished he could forget, grateful to those who saved him, so he joined the Alliance military. The Saren and Sovereign attacked and both their lives changed forever. Something drew them together but how could it work?
Crossover - Kingdom Hearts & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 17 - Words: 73,337 - Reviews: 9 - Favs: 25 - Follows: 23 - Updated: 5/20 - Published: 6/30/2022 - [Riku, Sora] [Liara T'Soni, Shepard]
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: 27 - Words: 154,944 - Reviews: 6 - Favs: 21 - Follows: 17 - Updated: 5/19 - Published: 8/17/2022 - Thrawn, OC, Ezra B., Shepard
The Good Shepherd: Season One by Dingo32 reviews
In her time Carrie white was the first human biotic, but she was driven to insanity, slaughter and apparent suicide by the cruelty of those around her. In another age her gift of natural biotics holds the key to a better life for those of her ilk, but that may not be all she has to offer the galaxy. Undergoing rewrite.
Crossover - Mass Effect & Carrie - Rated: M - English - Sci-Fi/Supernatural - Chapters: 2 - Words: 17,212 - Reviews: 26 - Favs: 72 - Follows: 107 - Updated: 5/17 - Published: 5/6/2016
Azure Resilience by MarredTales reviews
New planets were always to be considered dangerous and for this asari huntress it was no different. Surviving the reaper war without knowledge of the outcome, she must use her abilities to her advantage to ensure her survival and find herself a place amongst the world. It was just bad luck that she arrived during a blight.
Crossover - Mass Effect & Dragon Age - Rated: M - English - Fantasy/Adventure - Chapters: 9 - Words: 31,411 - Reviews: 11 - Favs: 17 - Follows: 40 - Updated: 5/16 - Published: 1/30 - OC, Cailan T.
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: 25 - Words: 211,883 - Reviews: 303 - Favs: 656 - Follows: 763 - Updated: 5/15 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
The Chozo Effect by Z.R. Stein reviews
The Great Enemy has been defeated. After five thousand long years, the Chozo are ready to break their self-imposed exile, to once again roam the stars like they did in days long forgotten. Though much diminished and weighed down with grief, they look towards the future with hope.
Crossover - Metroid & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 3,352 - Reviews: 8 - Favs: 37 - Follows: 52 - Published: 5/15
Were it So Easy by Sigma0327 reviews
Six's life was a giant war. Every battle was a test of sheer tenacity and stubbornness against insurmountable odds. Every moment, every bullet fired, every Covenant, Insurrectionist, and Flood spore killed has led up to his last fight. Once again he was one of the few that stood between Earth and her enemies. This would be his final battle, and nothing could change that, right?
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 9 - Words: 115,607 - Reviews: 180 - Favs: 830 - Follows: 1,179 - Updated: 5/14 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
Eyes Up, Jane Shepard by periferal reviews
On Alchera, a small piece of a dying machine-god finds what remains of Jane Shepard. Once awake, she must find out who killed her and use her new powers to save her world. Guardian!Shepard in a Mass Effect context, AU of ME2, eventual Liara/Shepard
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Drama - Chapters: 9 - Words: 25,412 - Reviews: 125 - Favs: 456 - Follows: 687 - Updated: 5/14 - Published: 5/31/2019 - J. Garson, Liara T'Soni, Miranda L., Feron
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: 11 - Words: 39,102 - Reviews: 91 - Favs: 361 - Follows: 551 - Updated: 5/14 - Published: 7/8/2022 - Rookie, Shepard
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: 5 - Words: 22,756 - Reviews: 7 - Favs: 51 - Follows: 64 - Updated: 5/14 - Published: 1/3 - Liara T'Soni, Miranda L., Shepard
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: 14 - Words: 112,527 - Reviews: 507 - Favs: 1,279 - Follows: 1,686 - Updated: 5/14 - Published: 12/3/2022 - D. Anderson, Admiral Hackett, Rael'Zorah, OC
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: 20 - Words: 73,648 - Reviews: 470 - Favs: 1,148 - Follows: 1,490 - Updated: 5/11 - Published: 9/8/2014
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: 14 - Words: 174,632 - Reviews: 448 - Favs: 964 - Follows: 1,333 - Updated: 5/11 - Published: 4/30/2020
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