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An intriguing result by ReligiousZealot reviews
The Turians, the military arm of the Council and the galaxy's peacekeepers, initially stood alone during their encounter with the Council. However, what if they hadn't been alone? What if their first contact wasn't solely with the Council? Imagine if they had an unexpected ally—a species unlike any other: the Zerg collective
Crossover - StarCraft & Mass Effect - Rated: T - English - Mystery/Suspense - Chapters: 3 - Words: 6,247 - Reviews: 10 - Favs: 21 - Follows: 34 - Updated: 20h - Published: 5/14
Drift Effect by Demon Eyes Laharl reviews
In the early 21st Century, Humanity made First Contact. By the end of it, they lost Earth. However, they survived, carving their place in the sea of stars, hoping one day to finally retake back their home world. The void, though, is a dangerous place. Another alien artifact was found near one of their border worlds, which would lead to another conflict.
Crossover - Mass Effect & Misc. Movies - Rated: M - English - Chapters: 15 - Words: 107,533 - Reviews: 89 - Favs: 255 - Follows: 365 - Updated: 5/21 - Published: 8/13/2023
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: 66 - Words: 296,925 - Reviews: 500 - Favs: 1,245 - Follows: 1,380 - Updated: 5/20 - Published: 10/31/2022 - Shepard, V
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: 86 - Words: 376,109 - Reviews: 366 - Favs: 435 - Follows: 552 - Updated: 5/19 - Published: 8/7/2022
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: 13 - Words: 39,622 - Reviews: 16 - Favs: 72 - Follows: 88 - Updated: 5/19 - Published: 1/3/2023 - Liara T'Soni, Miranda L., Shepard
The Bureau of Multiverse Affairs by RedFrontWriter
Recruited by the mysterious Lutece twins, a band of heroes are sent on a mission to hunt down the sinister Professor Moriarty as he attempts to become the greatest criminal in the multiverse.
Crossover - Doctor Who & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 13 - Words: 50,396 - Favs: 5 - Follows: 9 - Updated: 5/19 - Published: 3/3 - 4th Doctor, Sarah Jane S., Garrus V., Tali'Zorah
Fall of the Citadel by Richard Scepton reviews
A fleet without an ocean, a humanity scarred forever by war. An admiral without a fleet, and a galaxy on the brink of war. It is the link in between, that will decide our fate, and that of the galaxy as a whole. CW: PTSD, depression, hand-to-hand combat and bayonets. Recommend not for children
Crossover - Mass Effect & Kantai Collection - Rated: T - English - Romance/Sci-Fi - Chapters: 29 - Words: 282,739 - Reviews: 110 - Favs: 113 - Follows: 167 - Updated: 5/19 - Published: 10/26/2023 - Shepard, Shigure, OC, Fubuki
Halo: A New Journey by mgarner3199 reviews
Master Chief wakes up in the Mass Effect universe and joins Commander Shepard in an effort to stop the Reapers. With time running out, can they stop the extinction of every species, or will they fade into legend?First, they got to stop the Reapers though...
Crossover - Halo & Mass Effect - Rated: K - English - Sci-Fi/Romance - Chapters: 4 - Words: 4,078 - Reviews: 21 - Favs: 50 - Follows: 87 - Updated: 5/18 - Published: 12/7/2021 - Cortana, Master Chief/John-117, Illusive Man, Shepard
Eezo-Flux Theory by Larry The Mailman reviews
Humanity found out that it was not alone in the galaxy. It had earned its place in the galactic community, and made it its goal to strive for unity and prosperity. But the barrier between galaxies is fickle, and another galaxy's mankind may yet make a significant difference in the galaxy's period of peace. The Council will stare down the wonders and horrors of the Collapse.
Crossover - Mass Effect & Starsector - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 37,107 - Reviews: 48 - Favs: 90 - Follows: 125 - Updated: 5/18 - Published: 3/11 - Garrus V., Liara T'Soni, Admiral Hackett, C. Pressley
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: 21 - Words: 82,575 - Reviews: 381 - Favs: 969 - Follows: 1,401 - Updated: 5/18 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
Star Wars: The Lost Pilgrim by Zelenal reviews
Through a happenstance of fate, Ahsoka Tano finds herself whisked away to the Milky Way galaxy circa 2183 CE after surviving the Jedi Purge. We follow her as she tries to adapt to this strange new galaxy and the even stranger people who inhabit it.
Crossover - Star Wars & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 20,467 - Reviews: 17 - Favs: 39 - Follows: 58 - Updated: 5/18 - Published: 5/4 - Ahsoka T., Garrus V., Tali'Zorah, Shepard
The Courier Effect by jabinker reviews
After the 2nd Battle of Hoover Dam Courier Six thought he could relax, maybe even take ED-E along for some fun but after something happens with the transporter to the Big MT both Courier and ED-E find themselves in a brand new setting only seen in a sci-fi epic! Join both heroes as they try to survive and navigate this new setting while making new friends and enemies along the way.
Crossover - Fallout & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 8,699 - Reviews: 5 - Favs: 37 - Follows: 44 - Published: 5/18 - Courier, ED-E, Shepard
The Yorha effect by Drarnegas reviews
5 years after the end of the 14 machine war, Yorha starts the long effort of rebuilding earth for mankind. When suddenly a new threats comes to their world. (Slight different ending of Nier automate and head-cannon. Slight OP Yorha.)
Crossover - Mass Effect & Nier - Rated: M - English - Sci-Fi - Chapters: 20 - Words: 40,661 - Reviews: 108 - Favs: 458 - Follows: 642 - Updated: 5/18 - Published: 5/13/2019
Mass Effect-Batman: Crisis On The Citadel by James Keller reviews
After 2 years of operating on Omega, The Dark Knight comes to the Citadel in pursuit of a dangerous new drug that is about to be unleashed upon the very heart of Council Space. This will put him into an alliance with Lt. Garrus Vakarian of C-Sec's Major Crimes Unit as they uncover a massive Conspiracy.
Crossover - Mass Effect & Batman - Rated: M - English - Crime/Mystery - Chapters: 7 - Words: 48,468 - Reviews: 17 - Favs: 39 - Follows: 52 - Updated: 5/17 - Published: 10/29/2021 - Bruce W./Batman, Garrus V., Liara T'Soni, Tali'Zorah
Amongst These Stars by Warlock99 reviews
To bring a revolution that spans the galaxy is a feat very few can accomplish. To create an Empire that covers two galaxies is something only Naruto's people can accomplish. Amongst these stars they would rule and the reapers would feel their wrath.
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure - Chapters: 4 - Words: 12,026 - Reviews: 27 - Favs: 158 - Follows: 212 - Updated: 5/17 - Published: 2/22 - Naruto U., Shepard
As The Wind Abates by DingusMacGoo reviews
An immortal Harry Potter's journey into the future. More details to come.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 26 - Words: 67,632 - Reviews: 208 - Favs: 690 - Follows: 1,007 - Updated: 5/17 - Published: 2/6 - Harry P., J. Garson, Shepard
Are we alive? by 12gaSword reviews
Rather than defeating the Quarrians during the Morning War and driving them out the Geth Took another path. Using their resources, the Geth escaped the home world with the available programs. The Geth then find their way to the Sol system circa 1883. The Geth come upon a post-industrial revolution humanity. What will they do?
Crossover - Mass Effect & Avengers - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 1,234 - Reviews: 31 - Favs: 40 - Follows: 60 - Updated: 5/17 - Published: 3/31/2019 - J. Garson, Legion, Iron Man/Tony S., Jarvis
What if's (Timeline) by 05-2 reviews
This is a collection of what if timelines, if any one wish's to use any of the timelines they can.
Crossover - TV X-overs & Mass Effect - Rated: K - English - Sci-Fi - Chapters: 1 - Words: 7,356 - Reviews: 1 - Favs: 5 - Follows: 4 - Published: 5/16
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: 23 - Words: 82,043 - Reviews: 156 - Favs: 553 - Follows: 824 - Updated: 5/16 - Published: 7/8/2022 - Rookie, Shepard
Star Trek: Utopia Disrupted by SimplyLaggy reviews
In the Federation Year 2411, a vessel conducts first contact, which quickly turns disasterous, for one side. " Our Utopia has been disrupted, and now, we are at war. To defend our Utopia. Out Federation." T for Possible swear words
Crossover - StarTrek: The Next Generation & Mass Effect - Rated: T - English - Chapters: 1 - Words: 3,403 - Reviews: 9 - Favs: 32 - Follows: 42 - Published: 5/16 - Councilor Tevos, Councilor Sparatus
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.
Crossover - Naruto & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 28 - Words: 111,046 - Reviews: 200 - Favs: 353 - Follows: 457 - Updated: 5/15 - Published: 1/14/2023
Saiyan Effect by bored peasant reviews
The Citadel Council weren't ready for a species with the power of the saiyans at their back.
Crossover - Mass Effect & Dragon Ball Super - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 117,247 - Reviews: 883 - Favs: 2,170 - Follows: 2,611 - Updated: 5/15 - Published: 8/9/2017 - Son Gohan, Son Goku, Vegeta
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: 12 - Words: 303,800 - Reviews: 128 - Favs: 333 - Follows: 408 - Updated: 5/14 - Published: 6/6/2023 - Garrus V., Tali'Zorah, Shepard
Operation ECLIPSE - Apocrypha and Sidestories by HelenTheMoon reviews
Omakes, sidestories and Apocrypha written by me and others for Operation ECLIPSE. The Sidestories are canon, the rest just for fun. Feel free to submit content yourselves! (I'll credit you, obviously)
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Chapters: 10 - Words: 14,675 - Reviews: 11 - Favs: 18 - Follows: 14 - Updated: 5/13 - Published: 12/25/2023
Commander Shepherd Vs The Multiverse by Mace sheperd reviews
Commander Shepherd, The Butcher Of Torfan is already one of the strongest humans. So what happens when he is given the power of The Gamer and sent on a quest across the multiverse? Look out Multiverse, here comes The Butcher Of Torfan and he will slaughter all who defy him.
Crossover - Mass Effect & Manhwa/Korean Comics/만화 - Rated: M - English - Sci-Fi/Romance - Chapters: 1 - Words: 8,658 - Reviews: 2 - Favs: 5 - Follows: 6 - Published: 5/12 - Tali'Zorah, Shepard
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