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Mario Effect by OroDeus reviews
Haunted by visions of impending doom, Mario summons his ragtag team of explorers to adventure. Their journey across the stars will uncover the koopa king's horrible plot to take over the galaxy.
Crossover - Mario & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 24 - Words: 28,502 - Reviews: 12 - Favs: 4 - Follows: 7 - Updated: 3h - Published: 12/27/2023 - Mario, Luigi, Daisy, Toad
The Tale of Thomas Prometheus by avrjoe
A secret organization of AU traveling immoral researchers kidnap a man from our world and subject him to cruel augmentation experiments. When an unknown force attacks, our protagonist finds himself the only one left alive. Taking the name Thomas Prometheus, he plots to both train himself and gather a team to end the organization behind his kidnapping.
Crossover - X-overs & Mass Effect - Rated: T - English - Adventure - Chapters: 1 - Words: 3,549 - Published: 3h - Shepard
Mass Effect: Book of Korra by CommanderSheperddddd reviews
The world the knew is gone. Their mere existence contradicts all logic. But for Korra and the Krew rest isn't a luxury they cna afford, as even when placed in an unknown world, there is still need for heroes.
Crossover - Mass Effect & Legend of Korra - Rated: M - English - Sci-Fi/Horror - Chapters: 1 - Words: 1,345 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 11/18/2023 - Shepard, Korra, Mako, Bolin
Quintessence Effect Collective Rebirth by EvaShinobiKaiserKnight reviews
Two Years have passed since the Paladins and the Normandy had suffered the tragedy of loss. A year since the Altean's have begun to return to the galaxy after the second battle of the Citadel. But the Reapers are not done as the Paladins and a revived John Shepard must gather allies to face this threat. This is their Rebirth into a new world of wonders as Heroes. NOW FORM VOLTRON!
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Family - Chapters: 13 - Words: 159,632 - Reviews: 53 - Favs: 39 - Follows: 42 - Updated: 1/21 - Published: 8/11/2024 - [OC, Princess Allura] [Ashley W., Shepard]
It takes Time To Cleanse The Galaxy by ReligiousZealot reviews
The Tyranids, A devouring swarm summoned by the warp, traverse this new and unfamiliar galaxy, with only one goal in mind. devour, adapt, and overcome.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Parody - Chapters: 1 - Words: 3,163 - Reviews: 1 - Favs: 8 - Follows: 10 - Published: 3/3
Mass Effect: Become Legend by Redgrave21 reviews
More than five years after the Reaper War, Jane Shepard had lost her life for her galaxy, while Garrus Vakarian struggles to move on from the loss of the love of his life. But when Garrus begins to suffer strange dreams, the Normandy crew are thrust into a conflict that has lasted since the beginning of time. All the while a strange voice begins to tempt Garrus with… Salvation.
Crossover - Destiny & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 31 - Words: 192,741 - Reviews: 102 - Favs: 62 - Follows: 83 - Updated: 3/3 - Published: 7/7/2024 - Garrus V., Shepard, Osiris, Cayde-6
Galactic Conflicts: Tales of First Contact by TheDoctor1998 reviews
Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 18 - Words: 106,973 - Reviews: 435 - Favs: 618 - Follows: 873 - Updated: 3/2 - Published: 2/6/2023
Tali'Zorah: Demonologist by Sheev314 reviews
I DO NOT OWN MASS EFFECT ALSO THE FIRST TWO CHAPTERS WILL HAVE HORROR ELEMENTS IN IT Tali'Zorah's pilgrimage on a haunted world turns into an adventure with the demon known as Shepard. Can she and her new infernal friend save the galaxy from the Reapers, or will the universe burn in the fires of a new war.
Crossover - Mass Effect & Pathfinder RPG - Rated: M - English - Sci-Fi/Horror - Chapters: 2 - Words: 8,478 - Reviews: 8 - Favs: 14 - Follows: 20 - Updated: 12/21/2024 - Published: 11/19/2024 - Tali'Zorah, Shepard
Into the Howling Dark by long night of solace reviews
Hundreds of millions of years ago, Humanity, Forerunners and the SanShyuum, the tier-1 species protected the galaxy. But the peace never lasted as the threat of flood and the reapers brought the Milkyway to the edge of extinction. Now the warriors of the past needs to guide the future galaxy and stop history from repeating itself.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 71,265 - Reviews: 77 - Favs: 187 - Follows: 255 - Updated: 2/15 - Published: 10/23/2024 - Master Chief/John-117, Didact, D. Anderson, Shepard
The Chitinous Nightmare by RedFrontWriter reviews
Setting out into the galaxy for her pilgrimage, Tali'Zorah nar Rayya finds work with a human colony on the moon, LV-426. It is not long however, before she and the other colonists find themselves trapped in a nightmare from which there is increasingly little chance of escape.
Crossover - Aliens/Predator & Mass Effect - Rated: T - English - Horror/Sci-Fi - Chapters: 1 - Words: 1,861 - Reviews: 1 - Favs: 1 - Follows: 2 - Published: 3/2 - Newt, Amanda R., Tali'Zorah, Saren A.
Shadows and Dust by HistoricalHijinks reviews
Shattered, Reborn, Reforged, Remade. The gaze of the Pheonix Force, seeking purpose and understanding, falls upon the Reapers and their harvests. Disgusted by their perverted, farcical 'cycle', it decides to wipe their stain from the multiverse. Needing a perfect host, it waits tens of millennia until, as Hannah Shepard is miscarrying due to eezo radiation, it finds one in her womb
Crossover - X-Men & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 49,135 - Reviews: 103 - Favs: 411 - Follows: 554 - Updated: 3/1 - Published: 6/25/2023 - Ashley W., Liara T'Soni, 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: 49 - Words: 841,020 - Reviews: 760 - Favs: 764 - Follows: 797 - Updated: 1/5 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
The Effect of a Horse and a Dragon by Vimesenthusiast reviews
A different decision right after being cursed leads to a very different Ranma showing up in Nerima. When he goes after Herb to beat some sense into him Ryoga takes the chance to get rid of his rival once and for all, sending both combatants to the Mass Effect universe. What changes will two martial artists and their use of ki have on the coming conflict? RanmaXTaliXKasumiXSama
Crossover - Ranma & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 12 - Words: 253,006 - Reviews: 685 - Favs: 2,406 - Follows: 2,505 - Updated: 12/24/2024 - Published: 2/2/2014 - Ranma, Kasumi G., Tali'Zorah, Samara
The Reclaimer Wars:The Reaper Crisis by Johnnieboy11 reviews
Six months prior to the worst crisis the normal Milky Way would face, Commander Shepard hunts the Collectors abducting human colonists in the Terminus Systems when she comes upon a terrifying new sight:Three Intergalactic fleets arrayed against each-other and her sole Frigate. Three new factions, one seeking a home and two seeking answers, all linked by the Star Roads.
Crossover - Game X-overs & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 42 - Words: 237,305 - Reviews: 270 - Favs: 315 - Follows: 376 - Updated: 2/27 - Published: 4/26/2024 - Liara T'Soni, Tali'Zorah, Miranda L., Shepard
Destino en Masa by Agusfedredhunter reviews
Todos conocen el juego de Mass Effect pero no muchos conocen el juego Destiny por lo que eh decidido conectarlos. La humanidad, estando en una posición mucho mejor que la que tuvieron en su edad de oro se encuentra con un artefacto alíen desconocido que los conecta con el resto de la galaxia y a las razas que lo habitan (Las actualizaciones podran tardar un tiempo en llegar)
Crossover - Mass Effect & Destiny - Rated: T - Spanish - Drama/Adventure - Chapters: 6 - Words: 43,615 - Reviews: 5 - Favs: 26 - Follows: 26 - Updated: 5/27/2024 - Published: 9/20/2023 - Shepard, Awoken, Exo, Human
The Exiles:A New Power by Johnnieboy11 reviews
The beginning of the Battle For Earth signaled the start of the final, bloodiest campaign of the Human-Covenant War. Hastily, a plan is put into motion and an Ark Fleet, composed of a dozen Phoenix-class vessels and their escorts, makes the jump out of system. Either interference, or malfunction, causes their arrival to a new Galaxy, where new threats lurk just around the corner.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 33 - Words: 134,631 - Reviews: 561 - Favs: 1,211 - Follows: 1,701 - Updated: 2/23 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
The Terminus Exarchate by infamouswestgate reviews
Qelet B'Norai, Batarian cartel-kin and agent of the Covenant, travels the swallowed-yet-undigested worlds of the Terminus Exarchate! Can he save the Covenant Empire from collapsing underneath its own great weight?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 28 - Words: 85,271 - Reviews: 41 - Favs: 21 - Follows: 28 - Updated: 2/21 - Published: 9/11/2024
Halo Effect by kamilospl1312 reviews
What if UNSC replace System Allience from Mass Effect
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 15,941 - Reviews: 62 - Favs: 98 - Follows: 161 - Updated: 1/26 - Published: 8/12/2024
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: 29 - Words: 316,768 - Reviews: 2316 - Favs: 4,327 - Follows: 5,375 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
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