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Whatever The Cost by Pending Review
This will be a slightly AU story where a Spartan II: Jai-006, gets handed to ONI to be used as their personal asset immediately following his augmentations at 12. After years of running ops he encounters a Forerunner device that sends him into another universe and into the crosshairs of Jane Shepard. This will be a hurt/comfort fanfic filled with action.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Hurt/Comfort - Chapters: 1 - Words: 3,206 - Published: 4m - OC, Garrus V., Tali'Zorah, Shepard
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: 4 - Words: 16,573 - Reviews: 12 - Favs: 57 - Follows: 96 - Updated: 2h - Published: 3/12 - Liara T'Soni, Shepard, OC, Exo Stranger
Garden of Conquest by SirBearington reviews
Being a planet can be quite challenging especially when they live in the most hostile environment known to man. Everything could technically end them. From other planets, wandering stars or even black holes. There's a never ending list of things that could ruin their day. At least they have tentacles to protect themselves. What do you mean planets aren't supposed to have tentacle?
Crossover - Cartoon X-overs & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 21 - Words: 58,165 - Reviews: 44 - Favs: 163 - Follows: 201 - Updated: 20h - Published: 3/1
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: M - English - Sci-Fi - Chapters: 11 - Words: 34,291 - Reviews: 55 - Favs: 191 - Follows: 266 - Updated: 22h - Published: 6/14/2022 - Thrawn
Rising from the Embers of Sera by thehappy reviews
The people of Sera rebuild, spreading to the stars. Wars will be waged. Peace will be sought. The Coalition has risen from the ashes to take their right to exist in the galaxy. They will survive...no matter the cost.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 21 - Words: 316,105 - Reviews: 325 - Favs: 603 - Follows: 728 - Updated: 6/11 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
Anthem Effect by DragonKnight374 reviews
What if more than the world of Coda was isolated in space time? What will the freelancers do when they realize there’s more to the universe than their little planet, and how will the citadel react, to the Anthem of Creation?
Crossover - Mass Effect & Anthem - Rated: M - English - Sci-Fi/Adventure - Chapters: 16 - Words: 70,393 - Reviews: 64 - Favs: 266 - Follows: 321 - Updated: 6/11 - Published: 8/8/2022
Héroe De Una Galaxia Distante by fitoxi reviews
'Retornador'; El Quirk que envio a Izuku a otro mundo, para luego regresarlo de vuelta, conservando todos los poderes que había ganado. Lamentablemente, nadie le creera si intenta revelar el origen de sus otros Quirks, 'Bioticos/Omniherramienta' y menos se creeran el cuento de que fue el más grande héroe de una galaxia. [Izuku OOC/Inicialmente, Vigilante/Harem ( Solo 2 parejas)]
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: T - Spanish - Adventure/Romance - Chapters: 8 - Words: 74,032 - Reviews: 3 - Favs: 20 - Follows: 19 - Updated: 6/11 - Published: 3/3/2022 - [Liara T'Soni, Himiko Toga, Tali'Zorah, Izuku M.]
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: 45 - Words: 200,356 - Reviews: 196 - Favs: 309 - Follows: 423 - Updated: 6/11 - Published: 8/7/2022
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: 7 - Words: 59,515 - Reviews: 256 - Favs: 803 - Follows: 1,121 - Updated: 6/11 - Published: 2/11 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
Upon a Lion's Tooth by The Shaper
"That's the thing about Light, you never know where it'll shine." Sensing the final plays of the struggle between Light and Dark are about to be made, the Nine make a gambit of their own with an unlucky Guardian.
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 673 - Favs: 3 - Follows: 5 - Published: 6/10 - Legion, Shepard, Ghost, Guardian
Effects of Man by Krotosin reviews
During the shitshow that Eden Prime was, Shepard finds a man buried near the beacon. With him, two AIs, one from Reach, the other from Typhon. With him at her side, Jane's mission is easier. If it wasn't for the fact he's a sociopathic killer. And a shy one at that. Mostly Titanfall and Halo, with some Deep Rock Galactic. This is just a way to vent my ideas, so keep that in mind
Crossover - Mass Effect & Titanfall - Rated: M - English - Chapters: 1 - Words: 7,539 - Reviews: 2 - Favs: 9 - Follows: 16 - Published: 6/10
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: 38 - Words: 168,871 - Reviews: 38 - Favs: 87 - Follows: 113 - Updated: 6/9 - Published: 2/5
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: 6 - Words: 14,348 - Reviews: 56 - Favs: 179 - Follows: 246 - Updated: 6/9 - Published: 1/14
Spectre by Jonathan Palmer reviews
When the SSV Normandy is attacked Ashley convinces Shephard to to go with her. Follow their travels as Shephard makes it off the Normandy alive. Stranded on late 20th century Earth what will they do now? AU, Smart Harry, Female Shephard.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Friendship - Chapters: 8 - Words: 26,847 - Reviews: 45 - Favs: 210 - Follows: 330 - Updated: 6/9 - Published: 1/20/2022 - Harry P., Ashley W., 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: 30 - Words: 171,436 - Reviews: 6 - Favs: 23 - Follows: 18 - Updated: 6/9 - Published: 8/17/2022 - Thrawn, OC, Ezra B., 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: 515 - Favs: 1,339 - Follows: 1,762 - Updated: 5/14 - Published: 12/3/2022 - D. Anderson, Admiral Hackett, Rael'Zorah, OC
The Long, Long Walk by This Is Sarcasm reviews
Having stopped the Hive incursion on Eden Prime at the expense of being stuck in Commander Shepard's reality, Crow is offered a place on the Normandy. With nowhere to go, he accepts, and finds himself at the front of the fight against the Collectors, while at the same time trying to learn how to trust the ship's residents. In the end, though... maybe he's not 'stuck' after all.
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Angst - Chapters: 28 - Words: 95,174 - Reviews: 195 - Favs: 345 - Follows: 484 - Updated: 6/7 - Published: 9/15/2021 - Joker, Shepard, Dr. Chakwas, Crow
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: 1 - Words: 18,830 - Reviews: 24 - Favs: 141 - Follows: 168 - Published: 6/6 - Garrus V., Tali'Zorah, 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: 3 - Words: 27,845 - Reviews: 182 - Favs: 531 - Follows: 565 - Updated: 6/5 - Published: 3/27 - Naruto U., Shepard
Demigod Effect by MightyWarHammer
Descendant of Frank Zhang and Hazel Levesque named Marcus Zhang in. The year of 2183, and this is his story.
Crossover - Mass Effect & Percy Jackson and the Olympians - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 3,590 - Favs: 4 - Follows: 4 - Published: 6/5 - OC, Shepard
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: 26 - Words: 130,342 - Reviews: 186 - Favs: 723 - Follows: 818 - Updated: 6/5 - Published: 10/31/2022 - Shepard, V
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: 20 - Words: 105,929 - Reviews: 111 - Favs: 252 - Follows: 375 - Updated: 6/5 - Published: 2/21/2022
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: 10 - Words: 40,311 - Reviews: 60 - Favs: 325 - Follows: 468 - Updated: 6/4 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
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: 145 - Favs: 444 - Follows: 601 - Updated: 7/16/2022 - Published: 5/13/2020 - [Lelouch L., C.C.]
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