Warhammer and
Mass Effect
Crossovers
190
First Contact with the Angels » by
AntrosAscended
Horus rebelled against the machinations of Chaos and sacrificed himself for the Galaxy; Lorgar's Rebellion finally seems to have become a distant memory for the Imperium. On the 30th Anniversary of the Warmaster's death, a new swath of space would be found by accident, setting new possibilities or new failures in motion. I'm Antros. I'm back to remake my first story
T, English, Drama & Sci-Fi, chapters: 8, words: 85k+, favs: 441, follows: 593, updated: 2/13 published: 1/10/2024, Space Marines, Primarch/s, Councilor Tevos, Councilor Sparatus
68
Let There Be Light » by
Phorus Aedelmaer
The Imperium of Man arrives in the Mass Effect galaxy, igniting war with the Citadel Council. As the Imperium sees only heresy, the Council scrambles to survive. The Reapers, faced with an empire that defies their cycle, prepare to adapt. With war looming, the fate of the galaxy hinges on whether diplomacy or extermination prevails.
T, English, Sci-Fi & Fantasy, chapters: 11, words: 23k+, favs: 146, follows: 174, updated: 2/11 published: 1/29
24
Priority: Terra » by
1Ferrox
A Custodian-led Solblade fleet from Warhammer 40k is thrown into the Mass Effect galaxy after a Chaos ambush disrupts their warp travel. Disoriented and cut off from the Astronomicon, they emerge near Palaven, where Turian forces desperately defend their home against the Reapers.
T, English, Sci-Fi, chapters: 2, words: 4k+, favs: 103, follows: 130, updated: 12/11/2024 published: 12/6/2024, Imperial Guard
81
Mass effect: Beginning of the Heresy » by
islamov301
Captain John Shepard and his loyal crew stopped Saren and destroyed Sovereign, an ancient Reaper who was trying to take over the Citadel to bring his army here and destroy all intelligent life in the galaxy. Shepard knew that Sovereign's death was only the beginning of the war, but every night he wondered: "Why are the Reapers destroying life in the galaxy?"
T, English, Romance & Adventure, chapters: 6, words: 26k+, favs: 46, follows: 54, updated: 10/12/2024 published: 9/8/2024, [Tali'Zorah, Shepard]
166
The Rise of the Enclave » by
6-4 pilot
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.
T, English, Sci-Fi, chapters: 21, words: 103k+, favs: 407, follows: 452, updated: 8/25/2024 published: 4/20/2020, Chaos Space Marines, Tau, Legion, Shepard
62
The Prelude to War » by
Indigard
A very different Mass Effect galaxy encounters a strange and relentless invader that is in constant hunger for Biomass but they never know it's just a glimpse of what is coming for them. Featuring: an alternative history for every species, a bigger and more populated galaxy, cunning Asari, and a militarized and Germanized human empire.
T, English, chapters: 12, words: 203k+, favs: 120, follows: 138, updated: 7/18/2024 published: 11/6/2021, Imperial Guard, Tyranids, OC, Shepard
341
The Crusade of the Lost » by
Ninoslav
A fleet of Imperial reinforcements, Mechanicus detachment and a chapter of White Eagles meant for Cadian sector are swallowed in the unruly sea that is Warp. They emerge into a new universe, one without the Emperor, their faith strong, they will see this galaxy conquered. Theme Song, search on youtube : The Crusade of the Lost Theme song (Warhammer 40k X Mass Effect)
T, English, Sci-Fi & Horror, chapters: 29, words: 214k+, favs: 585, follows: 716, updated: 4/23/2024 published: 8/16/2019
2
Torch and Burn » by
Lighting wolf knight
The Tau Empire was strained... And a new galaxy offers a new lease on life. Rated T for violence, death, and profanity.
T, English, Sci-Fi & Adventure, chapters: 2, words: 2k+, favs: 17, follows: 20, updated: 2/6/2024 published: 12/10/2023, Tau, Subcommander Torchstar, Admiral Hackett
592
Exciting Opportunities » by
Of Questionable Veracity
In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.
K+, English, chapters: 40, words: 230k+, favs: 835, follows: 1k+, updated: 1/2/2024 published: 4/15/2019, J. Garson
40
Descent of the Angels » by
IReadToLive99
From a war-torn galaxy to another at the edge of extinction. The Blood Angels, through mysterious providence, are here now. Absent of the guidance of the Primarch and the Emperor, duty and devotion will lead them on a path to safeguard humanity from the darkness that lurks amongst the stars.
T, English, Sci-Fi, chapters: 6, words: 11k+, favs: 259, follows: 358, updated: 11/5/2023 published: 5/25/2023, Space Marines, Shepard
rogue trader » by
fate hay ghj
traducción de black banner
T, Spanish, Adventure, chapters: 3, words: 11k+, follows: 1, 4/17/2023
61
Things Alliance and Imperial Forces are No Longer Allowed to Do » by
thelordofdarkreunion
As blending cultures and bored soldiers often goes, both the Alliance and Imperial militaries have gotten up to some very interesting hijinks. Admiral Hackett and the Commissariat have decided enough is enough, and posted these handy rules for their respective soldiers to follow.
K+, English, Humor & Sci-Fi, chapters: 3, words: 4k+, favs: 188, follows: 138, updated: 3/12/2023 published: 8/11/2022, Imperial Guard, Space Marines, Admiral Hackett
661
Technophiles and Militarists » by
thelordofdarkreunion
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.
T, English, Sci-Fi & Adventure, chapters: 28, words: 334k+, favs: 621, follows: 692, updated: 3/5/2023 published: 4/22/2022, Imperial Guard, Space Marines, Adeptus Mechanicus, Shepard
2
Inquiry of Madness by
Lighting wolf knight
There would always be problems when it came to their job. Rated T for violence, death, and profanity. Doesn't follow cannon
T, English, Romance & Sci-Fi, words: 834, favs: 2, follows: 2, 1/29/2023, Inquisition, Shepard, Peebee S.
47
Glory to the Imperium! » by
V-rcingetorix
Astartes Shepard has been assigned a new task: to escort strange alien civilians to a site within Imperium borders. The Emperor Renewed has issued a personal directive that preparations are to take place, an alien race seeks to destroy the peace achieved within the Imperium's holy borders. My first foray into the 40k 'verse, insight would be helpful.
T, English, Drama & Adventure, chapters: 3, words: 28k+, favs: 217, follows: 255, updated: 12/23/2022 published: 11/15/2021
2
The Claw of the Raven » by
Lighting wolf knight
A plot to throw the galaxy into chaos and only those outside the rules were a match for it. Rated T for violence, death, and profanity.
T, English, Romance & Supernatural, chapters: 2, words: 3k+, favs: 4, follows: 6, updated: 10/9/2022 published: 2/22/2022, [OC, Daro'Xen] Cyrus, Illusive Man
3
En otro contexto » by
magnolias5
La humanidad ha sido una extraña espina clavada en la mente de su vecino mas antiguo, una nación estelar de milenios con un fuerte sentido del deber, lamentablemente esos no son los Turianos, la Humanidad y la Ciudadela se encuentran en un periodo tumultuoso sin que ellos lo sepan del todo, pues, el Imperio T'au tiene como imperativo llevar el bien mayor a todos, lo quieran o no.
T, Spanish, Sci-Fi, chapters: 2, words: 2k+, favs: 1, follows: 2, updated: 8/3/2022 published: 7/26/2022
430
Technophiles » by
thelordofdarkreunion
Everyone's favorite technophilic groups meet: the Adeptus Mechanicus from Warhammer 40k and the Quarians from Mass Effect. When the Cult Mechanicus learns of the existence of the A.I.'s known as the Geth and Reapers, they decide only one thing can be done, and enlist the help of Quarians to fight once more for their ancestral home. Keelah se'lai and Glory to the Machine God!
T, English, Sci-Fi & Adventure, chapters: 18, words: 202k+, favs: 931, follows: 1k+, updated: 4/18/2022 published: 9/24/2021, Adeptus Mechanicus, Tali'Zorah, Kal'Reegar, Rael'Zorah
4
Imperial Scales by
Lighting wolf knight
To them? the fact that they were entirely thrown into a new battlefield was entirely amusing. Next chapter will be delayed. Rated T for violence, death, and profanity.
T, English, Adventure & Sci-Fi, words: 816, favs: 9, follows: 8, 2/12/2022, [OC, Nyreen K.] Space Marines
8
Raiders by
Of Questionable Veracity
Cerberus research labs look at all sorts of things. Some they probably shouldn't.
T, English, words: 6k+, favs: 20, follows: 13, 2/2/2022
14
The Shepard of Azyr » by
EclipsePheniox
Experimental. Long without her memories Celestant Jayne Starforged is sent on simple scouting mission. But the mission into anything but simple as her past comes to the Mortal Realms with an old enemy. Age of Sigmar.
T, English, Fantasy & Adventure, chapters: 4, words: 11k+, favs: 40, follows: 39, updated: 8/12/2021 published: 10/10/2019, Ashley W., Liara T'Soni, Miranda L., Shepard
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