Halo and Mass Effect Crossovers
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Circuitry by obliviousbushtit reviews
Redemption: a notion all too unrealistic to attain. Thel 'Vadam was well aware the first time the Gravemind drilled it into his head. Through unthinkable circumstances, the Arbiter and Master Chief are thrown into a reality not of their own. Unwittingly the master of the Reapers or not, Thel must find within him the ability to atone. 'Haps a certain Quarian may be able to help...
Rated: T - English - Adventure/Friendship - Chapters: 18 - Words: 52,658 - Reviews: 52 - Favs: 173 - Follows: 264 - Updated: 9/7/2019 - Published: 4/6/2019 - Master Chief/John-117, Arbiter, Tali'Zorah, Legion
The Grave Effect by SaibotReaper Productions reviews
Following the destruction of The Covenant Empire and Truth, The Gravemind had one last trick up it's sleeve for survival fusing it's entire consciousness with a human host ensuring it's survival. Now a lone marine and The Gravemind venture out beyond the galaxy they once knew to a somewhat familiar yet strange galaxy that is brimming with new possibilities. (On Hiatus)
Rated: M - English - Sci-Fi/Adventure - Chapters: 23 - Words: 91,107 - Reviews: 143 - Favs: 316 - Follows: 390 - Updated: 7/27/2019 - Published: 5/16/2017 - Gravemind, OC, J. Garson, Garrus V.
Assorted Dysfunctional Plot Bunnies by RhysThornbery reviews
Basically a place to store my non-Harry Potter plot bunnies.
Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 37,723 - Reviews: 14 - Favs: 38 - Follows: 45 - Updated: 7/14/2019 - Published: 11/12/2018
The Reclaimer Effect by Thorthemighty321 reviews
It's the eve of the centennial anniversary of the beginning of the Human-Covenant War. A mere twenty years after the discovery of Prothean Ruins on Mars. A simple case of poor communication leads to a brief but violent conflict erupting and leads to the United Earth Government and it's military arm the UNSCDF coming onto the Galactic Stage of politics, mysteries, and adventures.
Rated: T - English - Adventure - Chapters: 17 - Words: 174,265 - Reviews: 663 - Favs: 1,161 - Follows: 1,627 - Updated: 6/27/2019 - Published: 2/28/2018
Shadow Contingency (v2) by Andrithir reviews
We used to dream about our place in the stars. Now we worry about our place in the void. The War has made us feel alone, desperate, and paranoid. So I come before you and beg you not to make an enemy of us, because if you do, for the next thousand years, the galaxy will talk about how we wiped you out.
Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 17,299 - Reviews: 28 - Favs: 136 - Follows: 251 - Updated: 6/17/2019 - Published: 6/10/2019 - Master Chief/John-117, Shepard
Mass Effect: The New Journey by Arashi the Solar Phoenix reviews
During a Joint Deployment, the UNSC Infinity and Her Sangheili allies are suddenly thrown into a new Galaxy, and end up near Charon before the Systems Alliance discovers the Charon Relay. Alliances are forged and how will the galaxy react to an aggressive humanity that not only doesn't use Mass Effect technology, but will not let anyone stand in their way of expansion? AU PreME1
Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 190,674 - Reviews: 1394 - Favs: 2,476 - Follows: 2,996 - Updated: 6/11/2019 - Published: 1/26/2014
Once more unto the breach( Codex) by n7kairos reviews
Codex for a new story- Once more unto the breach( coming soon)
Rated: K - English - Sci-Fi/Adventure - Chapters: 9 - Words: 7,135 - Reviews: 32 - Favs: 12 - Follows: 10 - Updated: 6/8/2019 - Published: 8/10/2018 - Shepard, Miranda L., C. Halsey, Master Chief/John-117
Once More unto the breach by n7kairos reviews
The Normandy and its crew are flung across into the Halo Universe, where they must survive and find their direction, all the while fending off Covenant, ONI, Flood, and more.
Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 17,176 - Reviews: 18 - Favs: 24 - Follows: 40 - Updated: 6/8/2019 - Published: 1/19/2019 - Shepard, A. J. Johnson, Cortana
The Spartan Effect by Gatekeeper333 reviews
Everyone's favorite Spartan is looking for a new purpose, lucky for him, the Commander his happy to oblige. (5-23-19 Info: On Hiatus after Chapter 45. Will update with schedule after life is in order.)
Rated: T - English - Chapters: 45 - Words: 495,928 - Reviews: 1750 - Favs: 2,770 - Follows: 3,319 - Updated: 5/23/2019 - Published: 3/27/2011 - Master Chief/John-117, Tali'Zorah, Miranda L., Shepard
Timeline for Olympic Effectt: Part One by Corda Dracon reviews
This story is going to be undergoing a rewrite.
Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 5,408 - Reviews: 12 - Favs: 29 - Follows: 40 - Published: 5/23/2019 - SPARTAN-B312/Noble Six, Liara T'Soni - Complete
Operation Noah by Azrael The Deplorable reviews
Join Black and Blue team on a journey on Maethrillian to help end a galactic genocide of a neighboring galaxy to secure Forerunner artifacts, tech, and ships. Will they succeed in ending the Reaper menace alongside with the help of Commander Shepard and crew? Or will there be more bodies for the grave? Disclaimer I do not own Halo or Mass Effect.
Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 57,309 - Reviews: 70 - Favs: 164 - Follows: 224 - Updated: 5/19/2019 - Published: 9/9/2018 - Master Chief/John-117, 049 Abject Testament, J. Garson, Liara T'Soni
The MIA Spartan by IronGiant9000 reviews
They always say that Spartan's are missing in action, but what if that is the reality of Noble Six? Falling into another universe surely didn't happen when he made the sacrifice to blow up the supercarrier, right? Unfortnately that was the case, and he just so happened to bring along 'friends' for the ride to change up the fate of the Milky Way Galaxy. Six's pairing unknown.
Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,106 - Reviews: 13 - Favs: 67 - Follows: 90 - Published: 5/7/2019 - SPARTAN-B312/Noble Six, Garrus V., Tali'Zorah, Shepard
A Spartan and a Spectre by W0lfsimien reviews
Following the battle of the arc our favorite spartan finds himself in a different Milky Way, with a whole new enemy to fight. Commander Shepard, Hero of Elysium, on a standard snatch and grab mission suddenly finds a strange man in with stranger weapons and armor, and a new enemy more dangerous than any she could even imagine. A reboot of my previous story.
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 4,440 - Reviews: 17 - Favs: 79 - Follows: 154 - Updated: 4/24/2019 - Published: 4/6/2019
Mass Effect: Dreams of Stone and Dust - Codex by Jadeflame reviews
The codex for a fanfiction that i am still writing. I just wanted to already post it to save some steps later. All copyrights go to who ever has the claim to them. Inspired by a few other Fanfictions and Games.
Rated: T - English - Chapters: 7 - Words: 11,491 - Reviews: 14 - Favs: 31 - Follows: 35 - Updated: 4/23/2019 - Published: 4/6/2019
MC in ME by W0lfsimien reviews
The story takes place after Halo 3 and in the first Mass Effect game. The Forward unto Dawn drifts through space marking the beginning of a new adventure for Master Chief, in a galaxy he could never have imagined. What happens when the greatest super soldier from one universe meets the rising star future specter of another, read and find out. Constructive criticism appreciated.
Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 17,921 - Reviews: 78 - Favs: 142 - Follows: 212 - Updated: 4/6/2019 - Published: 12/1/2012 - Master Chief/John-117, J. Garson
The Promethean Spartan by ErenJaeger17 reviews
When Master Chief destroyed the Didact's ship, he expected death. Now he is stuck in a new galaxy; with Cortana's legacy and new armor. Can Shepard help the Spartan? Can the Master Chief help save the colonies? Starts at the very end of Halo 4 and in the beginning portion of Mass Effect 2.
Rated: M - English - Adventure - Chapters: 3 - Words: 19,213 - Reviews: 169 - Favs: 757 - Follows: 1,056 - Updated: 3/29/2019 - Published: 7/4/2016 - Master Chief/John-117, J. Garson
Changing Universes (New Version) by GamerDroid56 reviews
As a Spartan, it was my duty to protect Humanity, whatever the cost. Now, the stakes have been raised as I no longer have to protect just Humanity, but the entire galaxy and all of its inhabitants. At the side of the First Human Spectre of this new Galaxy, I will succeed in defending the galaxy, even if it results in my death... (Might end up being AU Halo at start after Infinite)
Rated: T - English - Sci-Fi - Chapters: 5 - Words: 7,225 - Reviews: 8 - Favs: 55 - Follows: 86 - Updated: 3/23/2019 - Published: 7/22/2018 - Cortana, OC, J. Garson, Miranda L.
Universe Jumpers - Study by CommanderAuri reviews
This was just a little drabble bit I wrote for the crossover RP my boyfriend and I have been doing these last few years. I haven't written smut in quite some time so I'm a tad bit rusty. Thanks for reading!
Rated: M - English - Romance - Chapters: 1 - Words: 3,412 - Reviews: 1 - Favs: 3 - Follows: 3 - Published: 3/16/2019 - Complete
Soft as Thunder by silencewillfall009 reviews
Strength. Discipline. Honor. These are the pillars of Turian Society. And after meeting a race faced with extinction, they will stand by these pillars. No matter what the Asari say.
Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 4,309 - Reviews: 123 - Favs: 442 - Follows: 687 - Updated: 3/4/2019 - Published: 11/27/2017
The Fighting Spirit by smart grid reviews
Spartans never die, they say. When Jorge gave his life to save his home planet of Reach, he never imagined that he would survive. But now he finds himself neck deep in the troubles of another universe; he will do what he has been trained to do, what all Spartans do best: fight.
Rated: T - English - Adventure - Chapters: 40 - Words: 176,374 - Reviews: 815 - Favs: 1,538 - Follows: 1,451 - Updated: 3/4/2019 - Published: 12/1/2011 - Jorge-052/Noble Five, Shepard - Complete
The Galaxy's Personal Grim Reaper by DeltaSandman reviews
Noble Six has survived the Fall of Reach, and through an unexpected turn of events is thrown into an unknown universe. Commander Shepard recruited a new member of the team for the assault on the Omega Four Relay. Regardless, the mission stays the same and none of them are expected to survive. They aim to prove all of them wrong.
Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 8,464 - Reviews: 11 - Favs: 58 - Follows: 78 - Published: 2/28/2019 - SPARTAN-B312/Noble Six, J. Garson, Garrus V., Miranda L.
Marooned by SPHD reviews
A freak accident above Chi Ceti IV leaves John-117 and Kelly-087 stranded in the Mass Effect universe, where they team up with Commander Shepard in hopes of finding a way home. Will the Spartans be able to return? Or could they find something worth fighting for alongside the crew of the Normandy? Will contain some John/Kelly and MShep/Tali in later chapters.
Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 6,619 - Reviews: 12 - Favs: 62 - Follows: 111 - Updated: 2/23/2019 - Published: 2/8/2019
Man with the plan by Case-USMC1371 reviews
When the Third Great War came to a close, I never expected to be killed with nuclear fire. I also never expected to be chosen to undertake a multi-universe spanning mission! Oh well, I get to meet some people that are friggen awesome at least! Contains multiple Universes, but Halo and Mass effect are the major ones
Rated: M - English - Adventure - Chapters: 3 - Words: 14,392 - Reviews: 11 - Favs: 41 - Follows: 49 - Updated: 2/20/2019 - Published: 9/10/2018 - T. Hood, J. Garson, Admiral Hackett, OC
One mans trash, is an others savior(Scraped) by TheDidactsHand reviews
Cancelled due to my horrible grammar, punctuation, and spacing. A new version is being written.
Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 23,850 - Reviews: 23 - Favs: 53 - Follows: 72 - Updated: 1/14/2019 - Published: 3/27/2018
Exodus of the Damned by Codename-SURGEON reviews
The Reapers fell and with them fell our worlds. We drift alone in search of home and hope to one day build again. An artifact found provides a ray of hope. And those few who ventures through will seal our doom or not. Other worlds and other chances gives the Damned needed hope.
Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 91,692 - Reviews: 141 - Favs: 364 - Follows: 527 - Updated: 1/11/2019 - Published: 1/17/2016 - T. Lasky, Garrus V., Admiral Hackett
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