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BattleTech: The Mass Effect by IX404 reviews
During the beginning of the Reaper War, Shepard is informed of a Prothean artifact claimed by Cerberus and sent to stop them. Little does he know is that soon, he will find himself and his crew in a world both familiar and alien to their own.
Crossover - Mechwarrior/Battletech & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 68 - Words: 351,381 - Reviews: 503 - Favs: 188 - Follows: 234 - Updated: 20h - Published: 12/21/2020 - Garrus V., Shepard, James V., Nyreen K.
Saga of the Bridgers-Year 5 by Ganel750 reviews
The Death Star has been destroyed. While the Coalition celebrates, Ezra and Jaral return to Lothal, to spend some time with their family and introduce Luke to the ways of the Jedi. But the Empire is far from broken, as Grand Admiral Tanis and his fleet are already preparing to avenge the death of so many of their comrades.
Crossover - Mass Effect & Star Wars Rebels - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 31 - Words: 159,557 - Reviews: 8 - Favs: 20 - Follows: 15 - Updated: 7/24 - Published: 2/2 - [Ezra B., Sabine W.] Stromtroopers, OC
All the Stars by BlueWay reviews
When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 40 - Words: 701,806 - Reviews: 1102 - Favs: 1,526 - Follows: 1,881 - Updated: 7/23 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie
The New Order by Germanspeaker reviews
The Emperor give Thrawn everything what he need to destroy the Rebellion in the near of Lothal, but as he moves from Kuat to Lothal he hits a hyperspace anomaly. What Thrawn will do when he arifes with the sevens fleet the terminus systems? Will he brings the imperial order to this new galaxy?
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 10,941 - Reviews: 22 - Favs: 83 - Follows: 119 - Updated: 7/23 - Published: 6/14 - Thrawn
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: 37 - Words: 276,104 - Reviews: 26 - Favs: 158 - Follows: 205 - Updated: 7/22 - Published: 1/5 - Lone Wanderer, Courier, OC
The Ghoul Effect by storyseeker7 reviews
Humans and Ghouls two species who by natures design should have destroyed one or the other in bloody war of survive. But the actions of a few mange prevent such an event from occurring, and now two species work together for a better future. How will they react to a galaxy for of different races, and how will the galaxy react to the unique relationship between these two races?
Crossover - Mass Effect & Tokyo Ghoul/東京喰種トーキョーグール - Rated: M - English - Sci-Fi - Chapters: 30 - Words: 262,551 - Reviews: 238 - Favs: 581 - Follows: 673 - Updated: 7/22 - Published: 1/2/2019 - Complete
A few Titans Solves Many Issues, Including the Reapers by vmoneywashere reviews
In a distant yet expansive corner of the galaxy, many races rose and fell without anyone noticing. Yet a collection survived their ordeals and now look outwards. They bring Ideals, Peace, Prosperity, all under the UNSA and its Custodianship. When the Quarian Migrant fleet encounters an Expedition fleet, the nomads find a new home and a new family. (more updates in the winters) HFY
Crossover - Mass Effect & Stellaris - Rated: T - English - Sci-Fi/Family - Chapters: 14 - Words: 62,928 - Reviews: 135 - Favs: 440 - Follows: 646 - Updated: 7/22 - Published: 11/16/2021 - [Tali'Zorah, Shepard] Rael'Zorah, OC
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: 17 - Words: 75,432 - Reviews: 4 - Favs: 14 - Follows: 17 - Updated: 7/22 - Published: 6/15/2021
Just Another Day at the Office by Darthkvzn
Spectre-turned-bounty hunter (and unwilling interdimensional traveler) Jane Shepard arrives at her base of operations on Knowhere to embark on a mission to this dimension's version of Earth - one that could help her find her way back to the universe she was ripped from... (F!Shepard, multicrossover, part of the Kryptonverse series!)
Crossover - Ben 10 & Mass Effect - Rated: T - English - Adventure - Chapters: 2 - Words: 5,146 - Favs: 13 - Follows: 9 - Updated: 7/22 - Published: 6/25 - EDI, Shepard
The Lion & The Crow by Piper Squeaks reviews
When Normandy escaped the Collector Ship, Shepard never dreamed he'd stumble upon the find of a century. He never imagined he'd discover a creature unlike any other. He never knew the greatest weapon against the Reapers would be a Crow Feather. This crossover will feature Karasuba prominently. New forum: TLTC-TSK Q&A
Crossover - Mass Effect & Sekirei - Rated: M - English - Sci-Fi/Angst - Chapters: 10 - Words: 71,487 - Reviews: 68 - Favs: 307 - Follows: 376 - Updated: 7/22 - Published: 7/10/2014 - Shepard, No. 04/Karasuba
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: 8 - Words: 24,083 - Reviews: 100 - Favs: 384 - Follows: 585 - Updated: 7/21 - Published: 5/31/2019 - J. Garson, Liara T'Soni, Miranda L., Feron
The Long, Long Walk by This Is Sarcasm reviews
Crow is stuck, but it's not all bad news; he's been offered shelter on the Normandy, and Spider can't hurt them here. Shepard now has an unkillable paracausal warrior, and his 'not-an-AI', Glint, is a complete cinnamon roll, but it's not all good news; he's half-starved, in culture shock, and has a bad case of trust issues. He might need work, sure, but who on this ship doesn't?
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Angst - Chapters: 19 - Words: 63,252 - Reviews: 117 - Favs: 238 - Follows: 330 - Updated: 7/20 - Published: 9/15/2021 - Joker, Shepard, Dr. Chakwas, Crow
Mass Effect: The Gears of War by IX404 reviews
Marcus thought he was done fighting after the death of Queen Myrrah, and the activation of the Imulsion Countermeasure. When he goes to help Baird investigate an abandoned COG facility, he will soon discover that while he ended one fight, another one has just begun.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 28 - Words: 159,082 - Reviews: 198 - Favs: 194 - Follows: 228 - Updated: 7/20 - Published: 3/31 - Marcus F., A. Cole, Garrus V., Shepard
Technophiles and Militarists by thelordofdarkreunion reviews
The Reaper invasion is nigh. Outnumbered and outgunned, the Citadel must turn to two new, dangerous allies for salvation: the Adeptus Mechanicus and Imperium of Man.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 99,964 - Reviews: 228 - Favs: 248 - Follows: 347 - Updated: 7/19 - Published: 4/22 - Imperial Guard, Space Marines, Adeptus Mechanicus, 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: 41 - Words: 731,152 - Reviews: 589 - Favs: 488 - Follows: 520 - Updated: 7/18 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
Rogue Trader Shepard by ShirouKuroEmiya reviews
Even as the Great Crusade took place, the Emperor in His great wisdom had contigency plans in the event that his Imperium was destroyed. Seeds to sow a new Imperium if the first was to fall. This is the story of one such seed with Rogue Trader Shepard at the helm.
Crossover - Warhammer & Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 2 - Words: 10,254 - Reviews: 18 - Favs: 76 - Follows: 92 - Updated: 7/18 - Published: 7/6 - Shepard
Stellaris Book 2: The Shadow of Cerberus by Stormhawk fan SHhype reviews
Mega Multi Crossover, Main aspects are Storm Hawks and Mass Effect, with characters from Stargate, Star Wars and more, Sequel to Stellaris Book 1: The Fledging. A year has passed since the Liberation of Atmos. Piper, Aerrow and Finn have joined Lark at the ACPA, while Shepard has returned to the UNE Navy. Meanwhile Repton has escaped execution with new allies, and a new plan.
Crossover - Storm Hawks & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 20,430 - Reviews: 7 - Favs: 7 - Follows: 6 - Updated: 7/17 - Published: 5/27/2021 - Piper, Cyclonis, Illusive Man, Shepard
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: 34 - Words: 749,207 - Reviews: 736 - Favs: 425 - Follows: 484 - Updated: 7/17 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
Adversor Et Admorsus by PhoinexFire reviews
An ancient battle millennium old will soon begin again, forces of a dark order shall face an Empire of Light. Nations caught in the middle must choose and the future shall be shaped in the stars. Peace shall reign in the end, whether it comes in darkness or arises in light. One way or the other the darkness shall come and face the Terran Star Imperium. Sequel to Britannia Rising.
Crossover - Code Geass & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 82,418 - Reviews: 142 - Favs: 401 - Follows: 543 - Updated: 7/16 - Published: 5/13/2020 - [Lelouch L., C.C.]
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: 16 - Words: 90,289 - Reviews: 86 - Favs: 271 - Follows: 318 - Updated: 7/16 - Published: 4/20/2020 - Chaos Space Marines, Tau, Legion, Shepard
Fallout: New Galaxy by OneUpForExcelsior reviews
Courier Six after a bloody battle in Big mountain is thrown into the mass effect universe nearly a thousand years before the events of the trilogy. How will the galaxy react to the Legend of the Mojave desert and its magnet of trouble? Rated M just to be sure.
Crossover - Fallout & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 9 - Words: 36,940 - Reviews: 28 - Favs: 137 - Follows: 198 - Updated: 7/15 - Published: 3/24 - Courier, Tali'Zorah, Aria T'Loak, OC
Unknown events have unmeasurable answers by Watsi reviews
When someone contacts the Quarians about old machinery, they should think twice before engaging with a strange yet so familiar species, a war, and circumstances that will shock two galaxies now that the rift is open.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 13 - Words: 106,187 - Reviews: 235 - Favs: 323 - Follows: 505 - Updated: 7/15 - Published: 4/21 - [Master Chief/John-117, Tali'Zorah] J. Cutter
Mass Effect: Rise of Nations of Old by bladebrony reviews
The System Alliance had kept the United States, European Federation, and Russian Federation in the dark about the Galactic Community through manipulation and lies, just to hold the illusion of the sole leader of mankind to the Citadel Council and reap the luxury for themselves. when a colonization fleet arrives in Trinitar System the galaxy shall see the Rise of Giants
Crossover - Mass Effect & EndWar - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 13,374 - Reviews: 13 - Favs: 83 - Follows: 108 - Updated: 7/15 - Published: 4/14 - Tali'Zorah, Shepard, OC
Mass effect: the Jaded ones by Ray SK reviews
A UNSC Human-covenant war-era battle group led by a Punic class supercarrier is introduced to a new galaxy. One where people are xenophilic, use to times of peace and harmony, and against disrupting the Status Quo. What will an extremely aggressive xenophobic and battle-hardened human faction add to the mix? and will their addition change the future of this galaxy. (No Spartans)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Humor - Chapters: 4 - Words: 22,712 - Reviews: 62 - Favs: 128 - Follows: 187 - Updated: 7/14 - Published: 2/6 - E. Buck, OC
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: 2 - Words: 7,735 - Reviews: 18 - Favs: 109 - Follows: 171 - Updated: 7/13 - Published: 7/8 - Rookie, Shepard
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