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Inheritors of the Mantle
by Sempiternal Ether reviews
The Reaper War has come to a close, as has the Human-Covenant War. Both societies are increasingly unified and secure in their positions. What happens when they come into contact?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 62,002 - Reviews: 494 - Favs: 353 - Follows: 419 - Updated: 1h ago - Published: 3/23
The Infinity Effect
by creamofwheat2311 reviews
After discovering a Precursor artifact, the UNSC Infinity and the Sangheili Shadow of Intent are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined: the Reapers. Alliances are founded, friendships are formed, and decisions are made that will change this galaxy forever. Post Halo 4, Pre ME3. AU
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 76,805 - Reviews: 750 - Favs: 849 - Follows: 1,099 - Updated: 4/16 - Published: 10/9/2013 - Master Chief/John-117, T. Lasky, Admiral Hackett, Shepard (M)
Upon the Wings of Eagles
by Solaris-Prime199 reviews
It is rare to find a Space Marine with a sense of Humor, but Sergeant Sigmund isn't just any Ultramarine. Set upon the Eve of Humanities greatest triumph over adversity. Within moments of completion of the Emperors greatest work. Sigmund and his men are cast from the Webway into a strange and new Galaxy. Plans within Plots abound. Set before the Horus Heresy. Rated M to be Safe.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 14 - Words: 147,263 - Reviews: 201 - Favs: 172 - Follows: 233 - Updated: 4/15 - Published: 9/23/2013 - OC, Shepard (F)
Mass Effect: Clash of Civilizations
by Eterna1Soldier reviews
In 2157 a Citadel Council exploratory vessel is tasked with opening a dormant Relay into unknown regions of the galaxy. What they find is something they never expected. What happens when two civilizations centered around different technologies clash?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Mystery - Chapters: 20 - Words: 91,150 - Reviews: 2703 - Favs: 2,525 - Follows: 2,812 - Updated: 4/10 - Published: 10/13/2011 - Tali'Zorah
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
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 42,789 - Reviews: 366 - Favs: 594 - Follows: 743 - Updated: 3/27 - Published: 1/26
War, Peace, and other Galactic Customs
by The Almighty Afroduck reviews
After a long, terrible war, the Federation of Joint Species forms as the product of the alliance created early in the Great War between the Covenant Separatists and the UNSC. Time passes as they progress greatly, eventually discovering the existence of another galactic government. The events that will follow will change the course of the galaxy in more ways than one.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 4 - Words: 28,957 - Reviews: 86 - Favs: 200 - Follows: 261 - Updated: 3/27 - Published: 3/1
The Empire of Man
by Holland93 reviews
Humanity's reaction to the discovery of the archives on mars was very different from what happened in the games. The militaristic Empire of man is preparing to expand. But how will they react when they discover that they are not alone in the galaxy. And more importantly. How will the galaxy respond to humanity? First contact story. Rated T for language and gore update this week.
Mass Effect - Rated: T - English - Drama - Chapters: 12 - Words: 101,145 - Reviews: 386 - Favs: 497 - Follows: 577 - Updated: 2/5 - Published: 6/16/2013
by ArcturusWolf reviews
Nirn has been unified under the banner of the Empire, and its subjects reach to the stars. Fearing contact by a hostile species, they build up their military might; what will happen when an intrepid Batarian slaver ring opens a Mass Relay and attacks this Empire? Will they ever accept peace? M: V/L
Crossover - Elder Scroll series & Mass Effect - Rated: M - English - Chapters: 10 - Words: 75,761 - Reviews: 160 - Favs: 382 - Follows: 469 - Updated: 1/25 - Published: 7/24/2013 - Dragonborn/Dovahkiin, Shepard (F)
Mass Effect: The First War
by ProfFartBurger reviews
The Prothean Ruins weren't. They contained little more than mentionings of an Alien Society; as a result, humanity develops on a completely different path than what was intended, and when first contact is made not with the Turians, but a desperate, destitute race viewed as beggars and thieves, how will this dying race change Humanity? And how will Humanity change the Galaxy? *A/U!*
Mass Effect - Rated: T - English - Adventure - Chapters: 22 - Words: 195,052 - Reviews: 1484 - Favs: 1,819 - Follows: 1,629 - Updated: 1/12 - Published: 1/26/2013 - OC - Complete
The Day the Arms Closed
by thesarge400 reviews
Humanity, as a whole, has been deemed 'too violent' as a species to be permitted within the Citadel and Council-controlled space. Follow those who dwell within as civil uprisings and chaos spread across a once-peaceful and grand Citadel.
Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 13 - Words: 37,072 - Reviews: 207 - Favs: 364 - Follows: 421 - Updated: 12/29/2013 - Published: 6/21/2011
Mass Effect: Reclamation
by reptilia28 reviews
The Reapers have been harvesting the organic races of the galaxy since time immemorial, but the galaxy is a big place; even they cannot cover everything. Within the myriad cracks they left, the Forerunners and humanity arose. What will happen when the UNSC encounters the numerous other races of the galaxy, just in time to witness the Reapers' return? AU. Post-H4/pre-ME1.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 19,589 - Reviews: 115 - Favs: 302 - Follows: 392 - Updated: 12/24/2013 - Published: 10/26/2013 - Shepard (M)
And the Meek Shall Inherit the Galaxy
by Full-Paragon reviews
Due to a shift in turian and quarian patrols, first contact for humanity is friendly; Rael'Zorah and Hannah Shepard become friends, as do their species. But the galaxy is not a safe place, and schisms develop when the Council steps in. As humanity finds new allies among the stars, something darker stirs. The Meek must beware, for it is nearly harvest time. AU, lots of worldbuilding
Mass Effect - Rated: T - English - Sci-Fi/Family - Chapters: 49 - Words: 232,286 - Reviews: 3224 - Favs: 1,933 - Follows: 1,794 - Updated: 11/16/2013 - Published: 3/31/2013 - Tali'Zorah, Shepard (M), Hannah S., Rael'Zorah - Complete
Halo: New Horizons
by creamofwheat2311 reviews
The year is 2559, and the UNSC has discovered a large anomaly on the edge of the galactic rim. What it turns out to be has the potential to change history, but maybe not in the way the UNSC intended. Meanwhile, with the first Death Star destroyed, the Rebel Alliance is desperately trying to overthrow the Empire, but it will take the help of new allies to liberate the galaxy. AU.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 22 - Words: 155,059 - Reviews: 750 - Favs: 627 - Follows: 698 - Updated: 10/27/2013 - Published: 11/1/2012 - Luke S., G. Marek/Starkiller, T. Lasky
XCOM: Second Contact
by Agayek reviews
With the destruction of the Temple Ship humanity knew peace. XCOM never forgot their motto however, 'always vigilant, always reliable'
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 294,105 - Reviews: 924 - Favs: 1,443 - Follows: 1,526 - Updated: 9/15/2013 - Published: 1/1/2013
Mass Effect: The Bat's Legacy
by Magik8ball reviews
This idea came about while playing Mass Effect and visualizing what Batman could do with all the technology and story elements available in the Mass Effect Universe. This is a complete amalgamation of the two concepts and involves totally new characters. Purely fanfiction, hope you enjoy. I read all comments and will try to incorporate any ideas into story, thanks.
Crossover - Batman & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 40,939 - Reviews: 34 - Favs: 47 - Follows: 46 - Updated: 9/11/2013 - Published: 9/10/2012
by Solaris242 reviews
Humanity never developed FTL. The Prothean archives contained no technology, no Element Zero, just a warning. Isolated from the rest of the galaxy for two thousand years, restricted to their only system, how will humanity have changed when they first meet the Turians? AU, alternate history of humanity and First Contact.
Mass Effect - Rated: K+ - English - Sci-Fi - Chapters: 11 - Words: 17,845 - Reviews: 722 - Favs: 1,926 - Follows: 2,198 - Updated: 9/1/2013 - Published: 5/7/2013
From Hell To Hell
by mcknight93 reviews
Set around the beginning of Mass Effect 2 timeline, the Normandy SR-2 finds the Forward Unto Dawn. How will the Mass Effect universe change when the Master Chief is involved? All chapters have been rewritten and reposted with much improvements. The awesome picture rightfully belongs to: KnytGrey on deviantart.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 8 - Words: 91,287 - Reviews: 222 - Favs: 428 - Follows: 480 - Updated: 7/25/2013 - Published: 7/9/2011 - Master Chief/John-117, Shepard (M)
Halo The Evolution Continues
by UNSpaceCommand reviews
First time Crossover. Constructive Critic welcome. Enjoy and pls Review. Chapter 24 Full version and from now on no more sneak previews. A long lost ship is returning home but it seems fate have a decision to make a mess of things.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 24 - Words: 52,081 - Reviews: 293 - Favs: 312 - Follows: 340 - Updated: 5/6/2013 - Published: 9/22/2011
The End of Time
by Metal4k reviews
The Flood, the worst threat any civilization has ever faced, has returned. With their galaxies destroyed, Commander Shepard and John 117, find themselves in a galaxy far far away. Will the Republic believe these new comers? Can they unite before its to late? As the Universe's secrets unfold, the Flood is revealed to be worse than anyone ever imagined...
Crossover - Mass Effect & Halo - Rated: T - English - Horror/Sci-Fi - Chapters: 6 - Words: 36,536 - Reviews: 56 - Favs: 46 - Follows: 69 - Updated: 4/23/2013 - Published: 11/25/2012
by Animus of Masada reviews
An asari exploration vessel discovers Earth in the 2030's...and the first contact scenario has incredible implications for both species. What does humanity look like through alien eyes? Where do they go from here? /-AU: no Reapers, completely disconnected from the plot of the games, but mostly faithful to the setting. Told from many points of view.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 16 - Words: 51,333 - Reviews: 1097 - Favs: 1,677 - Follows: 1,837 - Updated: 4/10/2013 - Published: 8/12/2011
HALO: The Terran Republic Affair
by UH-60 NIGHTSTALKER reviews
When the Newly formed Terran Union and its allies make contact with the Galactic Republic, it sets off in motion events that would shake up a galaxy that is not so far away. Slight A/U.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 32 - Words: 79,884 - Reviews: 921 - Favs: 498 - Follows: 407 - Updated: 2/15/2013 - Published: 8/18/2012 - Complete
God of War Search for Salvation
by Omniscent1 reviews
Kratos, after his victory over Zeus, is given a chance by a stranger to have his family back. All he has to do is bring to him the swords Soul Edge and Soul Calibur.
Crossover - Soul Calibur & God of War - Rated: T - English - Adventure - Chapters: 12 - Words: 22,766 - Reviews: 93 - Favs: 85 - Follows: 71 - Updated: 1/4/2013 - Published: 6/8/2010
Spartans Never Die They're Just Missing In Action
by Benny235 the Solid Wolf reviews
What will happen when three secretly produced Spartan-IIs gets transported to Code Geass world become MIA with the very techs that helped start the power geass, will they ever find a way back to their dimension. Mrated cause Language,Gore,and Violence
Crossover - Halo & Code Geass - Rated: M - English - Adventure - Chapters: 7 - Words: 36,797 - Reviews: 23 - Favs: 22 - Follows: 21 - Updated: 1/1/2013 - Published: 5/2/2010
What The Future Brings
by Real Teagy SOT reviews
Only 5 years after the End of the Human-Covenant war does Humanity meet another alien Civilization. but this one has different technology and hasn't heard of the Forerunners. Is this one open to peace at first contact? or will Humanity be bludgeoned by outside forces yet again?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 17 - Words: 54,286 - Reviews: 358 - Favs: 334 - Follows: 344 - Updated: 8/28/2012 - Published: 7/18/2012 - Master Chief/John-117, Shepard (M)
Alternate Past, Uncertain Future
by Real Teagy SOT reviews
The UNSC met the Sangheili Empire and together they formed the Systems Alliance. They discovered the Ark and Humanity's Reclaimer Status. The Krogan Empire joined the Council alongside the Turian Hierarchy. A Mass Relay is discovered on the Edge of Systems Alliance space and is scheduled for activation. How does the Council react to a Galactic Civilization that rivals its own? AU
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 12,588 - Reviews: 124 - Favs: 120 - Follows: 143 - Updated: 8/28/2012 - Published: 8/20/2012
Ancient Hounds of War
by Vixen Tail reviews
The answer to a challenge by one of my readers. Out running a trio of Covenet ships, the crew of the UNSC Valiant jumps to slipspace three miles from the event horizon of a black hole. Jedi Knight Obi-Wan Kenobi is the first to find them.
Crossover - Star Wars & Halo - Rated: M - English - Chapters: 6 - Words: 61,986 - Reviews: 134 - Favs: 278 - Follows: 297 - Updated: 7/4/2012 - Published: 11/9/2011 - Obi-Wan K., Master Chief/John-117
Mass Effect New Origins V2
by erttheking reviews
On the dawn of the 27th century, the UNSC discovers a Mass Relay, and unlock its power. What follows not only includes making contact with new species and making new friends, but making new enemies as well, and the entire galaxy will shake.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 109 - Words: 442,687 - Reviews: 2259 - Favs: 868 - Follows: 597 - Updated: 6/9/2012 - Published: 10/5/2010 - Shepard (F) - Complete
Of Alchemists and Mutants
by metgear5 reviews
When an experiment involving alchemy inadvertently crosses with a similar experiment on another world Ed and Al will have to deal with new 'alchemists' in the form of the X-Men and Brotherhood.
Crossover - X-Men & Fullmetal Alchemist - Rated: T - English - Chapters: 13 - Words: 126,900 - Reviews: 88 - Favs: 82 - Follows: 115 - Updated: 1/5/2012 - Published: 12/31/2005
A New Age
by Sigma-del-Prisium reviews
The Human-Covenant War is over, and humanity is slowly recovering their strength. But unknown to them and their allies, their worlds will soon make contact with rest of the galaxy. First Time FanFiction. Please Enjoy. [ON HAITUS/REPLACEMENT GOING ON]
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 73,443 - Reviews: 471 - Favs: 409 - Follows: 392 - Updated: 10/23/2011 - Published: 11/27/2010
Deadliest Warrior: Ray's Edition
by Sarge Ray reviews
Warriors come from all around to face off. So, who is deadliest? Current matchup: Captain America vs. King Bradley
Cartoon X-overs - Rated: T - English - Parody - Chapters: 24 - Words: 177,711 - Reviews: 152 - Favs: 41 - Follows: 25 - Updated: 10/11/2011 - Published: 9/27/2009 - Complete
by Triggs reviews
When a last ditch attempt by the Marker to spread Convergence backfires, Isaac Clarke is sent tumbling, head over ass, into a brand new universe filled with equal measures of wonder and danger. Mass Effect 2/Dead Space 2 Crossover. Pairing undecided.
Crossover - Mass Effect & Dead Space - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 5,871 - Reviews: 200 - Favs: 122 - Follows: 163 - Updated: 2/20/2011 - Published: 2/13/2011 - Shepard (F), Isaac C.
Fighting for a Purpose V2
by erttheking reviews
While on a deep space mission, a CCS- battlecruiser is shot down by the CIS. The battle fought by the surviors is brutal, but it is only a glimpse of what is to come. Ahsoka/OC AU post Halo 3 pre Revenge of the Sith
Crossover - Star Wars & Halo - Rated: T - English - Adventure/Romance - Chapters: 61 - Words: 151,500 - Reviews: 914 - Favs: 409 - Follows: 226 - Updated: 12/18/2010 - Published: 4/4/2010 - Ahsoka T. - Complete
Unworldly Time Share
by The WolvGambit reviews
AU - Wolverine goes to bring a mutant to the institute from Tokyo, Japan. Little does he know that she teleports anyone to other dimensions and she has no control of her powers. Logan lands on Sera fighting for his life with Delta Squad.
Crossover - X-Men & Gears of War - Rated: T - English - Sci-Fi - Chapters: 11 - Words: 14,441 - Reviews: 25 - Favs: 40 - Follows: 39 - Updated: 6/25/2010 - Published: 3/3/2009 - James H./Wolverine/Logan
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Halo: Ascension reviews
[ After the Great War, Humanity begins to rebuild, and while many challenges present itself to the surviving government, nothing will have as much as an impact as Shanxi. The Galaxy shall become the center point for an ancient threat's plans, people of all backgrounds must come together, and Humanity must finally ascend to its rightful throne as inheritors of the Mantle. ]
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 13,527 - Reviews: 30 - Favs: 148 - Follows: 198 - Updated: 7/21/2013 - Published: 5/31/2013 - Master Chief/John-117, Arbiter, Shepard (F), Garrus V.
Halo: The Night Before reviews
What was a simple security operation on the Cruiser turned freighter, The Night Before. Turns into a fight for survival as Officer Oliver Brown must prevent Commander Vyrnnus and his men from capturing needed information, can he defeat the Turian forces, and can he save the survivors on board as well? Based on "Midnight In The Heart Of Midlothian" Please Review and support.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 3 - Words: 4,538 - Reviews: 4 - Favs: 10 - Follows: 17 - Updated: 12/22/2012 - Published: 12/3/2012
Real Life: Rise of the Ara reviews
What is a real living thing? In this short mini fic, we will see the rise, the doubts and overall lessons learned from this experience. The Forerunner Monitor, Uncharted Solace has sent the requirements for Synthetic life into a new galaxy, and as the Ara rise their threat is not the Reapers, but it is the Citadel Council, can the Ara convince them to be open minded? Mostly ME.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 1,322 - Reviews: 10 - Favs: 29 - Follows: 30 - Published: 11/19/2012 - Shepard (F)
Honor and Glory reviews
We have fought for years as warriors of the Systems Alliance, and now we look towards the stars again with hope. We are the Vanguard of of our Mantle, protectors of Humanity and our Alliance. The Citadel might believe they can control the galaxies fate, but they do not hold the Mantle, we do. I am the eye of the Council, an Ossoona. Out of Darkness, these blades will light my way.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 4,930 - Reviews: 16 - Favs: 42 - Follows: 50 - Updated: 11/4/2012 - Published: 10/3/2012 - Arbiter, Shepard (F)
Halo: Beyond the Relay reviews
I have come to realize that this seems to impossible at the moment...so I am rebooting it soon. Reboot will be titled Halo: Age of Unity and again sorry for this inconvenience.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 11,450 - Reviews: 35 - Favs: 51 - Follows: 51 - Updated: 9/17/2012 - Published: 8/26/2012 - Master Chief/John-117, Shepard (F)
Halo: The Ascendents reviews
Post Requiem - Humanity has Reclaimed the Forerunners space and now a copy of the new Ecumene is taken to a new reality by the omnipotent Creator to see how a certain Citadel and the space ruled by them would react. His greatest project is for our entertainment. Now follow the former Forerunner Monitor, 01-072 Uncharted Solace as he and the Ecumene enter the Mass Effect Universe.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 4,787 - Reviews: 18 - Favs: 45 - Follows: 57 - Published: 9/11/2012 - Master Chief/John-117
Not Dead Yet V1 reviews
The Sacrifice Bill showed is not as it seems, what really happened? And how did Bill wake up in 2020 during World War three? Cross over between Call of Duty, L4D and based on Nation States nation, UEG-America
Crossover - Call of Duty & Left 4 Dead - Rated: T - English - Suspense/Adventure - Chapters: 3 - Words: 3,723 - Reviews: 1 - Favs: 1 - Updated: 3/2/2012 - Published: 1/28/2012 - Cpt. John Price, Bill
Halo: White And Red
It all began with a destiny, a fate interlocked with the raging war, a man shall step up to take his honor and heritage to the next step, and you thought Master Chief was the demon?
Halo - Rated: M - English - Sci-Fi/Suspense - Chapters: 4 - Words: 2,317 - Updated: 3/11/2011 - Published: 1/11/2011