Halo and Mass Effect Crossovers
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Resonance by SounDemoN reviews
Crossover of Halo, Half-Life and Mass Effect, AU for all three. 27th Century Humanity encounters the Reapers and the Council races, while dabbling in teleportation technology, unknowing of the slumbering beast they would awaken. Rated K for the time being, will be upgraded as needed. I own none of the used existing fictional universes/characters/tech/stuff. Will add a cover later.
Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 63,195 - Reviews: 52 - Favs: 114 - Follows: 157 - Updated: 7/8/2015 - Published: 2/23/2015
Imperium: Trails of the Arcane by I-IRONMAN-I reviews
(Multi-crossover) The Great Galactic War has passed, with the Galactic Empire and ONI's presence diminished in the Milky Way. After his disappearance, Kholo returns in a rampant and deadly search for an ancient Forerunner artifact that can bring back something ancient and arcane. However, there is something much more sinister at work within the shadows.
Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 24,985 - Reviews: 2 - Favs: 6 - Follows: 8 - Updated: 7/6/2015 - Published: 1/12/2014 - Arbiter, OC, Saren A.
Conquerors they Rise by JoeTheHighlord reviews
The year is 2650, nearly a century since the end of the Great War and the fall of the Covenant Hegemony. In that time great advances have been made in both technology and society, and the new government of the New Species Alliance enters a golden age. But, there are dark stirrings out in the vastness of space and soon Conquerors must rise again from the ashes of war.
Rated: T - English - Sci-Fi/Suspense - Chapters: 13 - Words: 74,202 - Reviews: 430 - Favs: 747 - Follows: 938 - Updated: 7/2/2015 - Published: 7/16/2013 - T. Hood
Critical Effect - TEASER by Commander Thor reviews
This is the new chapter of my Halo/M-Effect cross over. I have decided to scrap any writing involving other crossovers.
Rated: K - English - Sci-Fi/Mystery - Chapters: 1 - Words: 1,158 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 6/28/2015
The Power of the Grail by Metal4k reviews
The Flood and Reapers have taken world after world, and Commander Shepard and Master Chief are on the edge of their rope to find the Halo Array. As they traverse new space and realities, dark secrets will be revealed that could shatter all they know. The enemy has plans of its own, and even Heroes are hopeless to stop it. Sequel to the "Universe of All Reality"
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 13,513 - Reviews: 16 - Favs: 53 - Follows: 54 - Updated: 6/20/2015 - Published: 5/13/2015 - Master Chief/John-117, Arbiter, J. Garson, U. Wrex
The Lost ODST by TheScholarOfSin reviews
Jacob isn't a Spartan, but he is a damned good ODST, one that is done with the wars that have plagued humanity. How will this ODST react when he is thrown into not only a world that isn't his, but a war as well?
Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 1,315 - Reviews: 6 - Favs: 22 - Follows: 33 - Updated: 6/19/2015 - Published: 6/12/2015 - OC, J. Garson
Gateway Chronicles by Robert Lee reviews
Ever sense the two games Halo and Mass Effect have been out, there have been those that have written cross overs or discussed how the two universes may interact. Gateway Chronicles is my take on that very issue.
Rated: K - English - Sci-Fi - Chapters: 12 - Words: 35,574 - Reviews: 44 - Favs: 98 - Follows: 159 - Updated: 6/5/2015 - Published: 11/14/2014
Through the Perseus Veil by Istaeionar reviews
Humans are just beginning to establish themselves before the Council and hope to do so with Commander Shepard becoming the first human Spectre. Things go horribly wrong when the Geth, a new alien species, and Cerberus get involved during her first mission on Eden Prime.
Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 5,188 - Reviews: 2 - Favs: 7 - Follows: 6 - Published: 6/3/2015
You Can't Teach An Old Dog New Tricks by DragonsManticoresAndGiantsOhMy reviews
AU Setting. The Terminus is not a place for the weak or timid. It's a way of life as much as a destination or location. Two men with a shared past find themselves crossing paths once more in this harsh setting. Their run in turns into reflection on their lives, careers, and futures. Maybe you can't teach an old dog new tricks, but you can give him something to chew on.
Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 14,555 - Reviews: 2 - Favs: 11 - Follows: 5 - Published: 5/31/2015 - A. J. Johnson, Zaeed M. - Complete
Precursors Effect V2 by Chooky Chook
Rewritten version of my original story, covers my take on a Halo/Mass Effect crossover, with bits of others too. Please Read and Review. (This story is AU. Don't like, don't read, but if you read, don't complain about things not being the same as official 343i or Bioware canon and lore.)
Rated: T - English - Chapters: 1 - Words: 2,686 - Favs: 21 - Follows: 26 - Published: 5/30/2015
Better by CJ-T-Bone reviews
Sometimes a hero deserves more than he gets. Rated T because I'm paranoid. Oneshot.
Rated: T - English - Tragedy/Romance - Chapters: 1 - Words: 2,088 - Reviews: 19 - Favs: 72 - Follows: 27 - Published: 5/20/2015 - [Cortana, Master Chief/John-117] J. Garson - Complete
Dawnhammer by Ace Warbringer reviews
For the crew of the Matriarchs Light, the day was going to hell. For the Dawnhammers refit voyage, new things are about to occur. For when the Matriarchs Light opens a relay, chased by a Reaper. One ship will stand and face a new world. (Now continued!)
Rated: T - English - Sci-Fi/Fantasy - Chapters: 2 - Words: 9,180 - Reviews: 39 - Favs: 120 - Follows: 158 - Updated: 5/18/2015 - Published: 3/29/2015
Halo : New Destiny by Offensive bias ai reviews
What if instead of the Covenant the UNSC meet the Mass Effect races?
Rated: T - English - Sci-Fi/Humor - Chapters: 1 - Words: 920 - Reviews: 2 - Favs: 16 - Follows: 30 - Published: 5/17/2015
The Universe of All Reality by Metal4k reviews
"Where does all evil come from? Where does it originate?" There are forces far more ancient, far darker, than the Reapers and Flood. Peace is over. Commander Sheaprd will be faced with new threats and challenges, ones that can transcend reality, ones older than the Universe itself. Multiverse crossover
Rated: T - English - Mystery/Adventure - Chapters: 42 - Words: 236,597 - Reviews: 423 - Favs: 298 - Follows: 331 - Updated: 5/13/2015 - Published: 4/27/2013 - Master Chief/John-117, J. Garson - Complete
Precursors Effect by Chooky Chook reviews
Being Rewritten. story covers my take on a Halo/Mass Effect crossover, with bits of others too. Please Read and Review. (This story is AU. Don't like, don't read, but if you read, don't complain about things not being the same as official 343i or Bioware canon and lore. Unless it is constructive)
Rated: T - English - Chapters: 20 - Words: 18,606 - Reviews: 67 - Favs: 60 - Follows: 70 - Updated: 5/11/2015 - Published: 7/12/2012
Desolation by hunter 139 reviews
An ODST awakes in a Pelican crash site on an unknown planet and tries to uncover the fate of his squad. Instead he uncovers something better left buried. Based off of an old Halo 3 machinima. Multicrossover.
Rated: T - English - Mystery/Suspense - Chapters: 12 - Words: 23,620 - Reviews: 16 - Favs: 15 - Follows: 27 - Updated: 4/14/2015 - Published: 2/19/2015
Legacy Effect: Siege of Tuchanka by Lord Hierarch reviews
One-Shot: "Praise the Forerunners who watch over us for the lives we avenge from this day onward. Let us scorn the Krogan! Let us trample their pride! Let us break their will! Once again raise the flag of salvation! Onward warriors of the Covenant! Onward heroes of Sanghelios!"
Rated: T - English - Chapters: 1 - Words: 1,253 - Reviews: 3 - Favs: 9 - Follows: 8 - Published: 4/11/2015 - Complete
The Reclamation has already begun (other failed retry) by Fade Maybe reviews
If your'e still following this...might want to reconsider. I'm updating the other story now (the original reclamation has begun). So, this one is pretty much dead. But the original is still alive and better than ever!... which isn't say much. In any event, just go follow and favorite the original and not this one.
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 11,785 - Reviews: 40 - Favs: 118 - Follows: 164 - Updated: 4/8/2015 - Published: 1/4/2015
Deliberate Consequences by TheEpicBro117 reviews
A UNSC expedition to deep space causes consequences for both sides as humanity reaches for its rightful inheritance. Please take it easy on me with the reviews as this is my very first story.
Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 4,539 - Reviews: 24 - Favs: 59 - Follows: 99 - Updated: 4/5/2015 - Published: 1/15/2015
Wrath of the Gods by Regina Dea reviews
On the run from the Forerunners, the Covenant enters Citadel Space. It's not as epic as it sounds.
Rated: K - English - Chapters: 1 - Words: 1,044 - Reviews: 6 - Favs: 20 - Follows: 13 - Published: 4/2/2015 - Complete
Prefect Spartan by Nighthawk6595 reviews
During the Requiem Campaign, a Spartan was sent to test a Forerunner/Human hybrid armor, but when escaping Requiem, an event caused the Spartan and his Fireteam to be sent to an unknown place where they face unknown enemies and gain new allies in the process. There will be a pairing or pairings.
Rated: M - English - Adventure/Romance - Chapters: 7 - Words: 42,711 - Reviews: 26 - Favs: 76 - Follows: 94 - Updated: 3/29/2015 - Published: 3/23/2014 - OC, Tali'Zorah, Shepard
One Last Effect by Rookie117 reviews
He's one of the Last of his kind. He has seen the horrors of war first hand. So what would happen where hes thrown into a Galaxy where its a peace. Well lets find out.
Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 1,797 - Reviews: 18 - Favs: 28 - Follows: 49 - Published: 3/28/2015 - J. Garson, Tali'Zorah
Mass Effect: loose Ends by death7559 reviews
"If you commit genocide, you'll need to take care of any, loose ends. Because this, this is what happens when loose ends, stay loose" -An accurate retelling of the end of the world.
Rated: T - English - Chapters: 1 - Words: 299 - Reviews: 3 - Favs: 6 - Follows: 10 - Published: 3/28/2015
The Fall From Grace by The Wandering Warrior reviews
After the destruction of Requiem, the Covenant Empire collapsed and together with the UEG formed the Systems Alliance. After discovering an unknown cache of hitherto unseen before technology and the discovery of what is to become known as 'Mass Relays' the face of the galaxy will be changed forever.
Rated: T - English - Chapters: 12 - Words: 36,973 - Reviews: 95 - Favs: 289 - Follows: 391 - Updated: 3/28/2015 - Published: 11/11/2013 - Admiral Hackett, Shepard
Still Waters by Andrithir reviews
With the help of Shepard, the Chief contemplates his next steps in a time of peace. (A Lost Legacy spinoff, takes place part way through Lost Legacy Epilogue). Spoilers.
Rated: T - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 3,969 - Reviews: 5 - Favs: 39 - Follows: 26 - Published: 3/27/2015
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