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Mass Effect: Trailblazer by
TallYapflip reviews
Humanity, left to its own devices for centuries, comes into contact with the Citadel Council. A misunderstanding leads to hostile first contact, and the UNSC is drawn into war with the Council shortly after the Insurrection's height. The Council finds itself face-to-face with a species that has broken the shackles of Mass Effect Technology. The Era of Humanity has only just begun.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 11 - Words: 54,558 - Reviews: 514 - Favs: 1,497 - Follows: 2,034 - Updated: 8/26 - Published: 7/14/2017 - Master Chief/John-117, J. Keyes, Shepard (F), Miranda L.
The Wreck by
Gabenator5 reviews
After the Normandy's destruction, Tali'Zorah goes out to traverse the lesser explored places in the galaxy in search of rare materials for the Migrant Fleet. While on her adventures she finds something that shouldn't belong... she finds a Wreck... The Galaxy will never be the same.
Crossover - Halo & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 5 - Words: 8,429 - Reviews: 142 - Favs: 425 - Follows: 716 - Updated: 8/5 - Published: 1/7/2018 - Tali'Zorah
Contact at the Citadel by
wilkins75 reviews
Sequel to Contact of Kobol and Contact of Races. Earth and other worlds are united in the Tau'ri Alliance, with the advance technology from the Ancients and the Asgard they are the most advanced culture in the Galaxy. Now they must travel to a distant galaxy to finish the mission of the Destiny only to contact the Citadel Council and the Reapers. (Stargate Sg1/Mass Effect)
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 19 - Words: 163,779 - Reviews: 1015 - Favs: 1,091 - Follows: 1,395 - Updated: 8/1 - Published: 4/23/2018
To Infinity by
creamofwheat2311 reviews
After discovering an ancient artifact, the UNSC's most advanced warship and a Sangheili Assault Carrier are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 46 - Words: 390,407 - Reviews: 3553 - Favs: 4,073 - Follows: 4,888 - Updated: 7/25 - Published: 10/9/2013 - Master Chief/John-117, Arbiter, T. Lasky, Shepard (M)
Enduring the Flames of War by
Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 32 - Words: 452,176 - Reviews: 1657 - Favs: 2,429 - Follows: 3,096 - Updated: 7/12 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard (F)
Days for the Lost by
Superemopowerz reviews
Spartan-008 should have been dead. No one could have survived a slip-space anomaly. Now thrust into a new world; where humanity is slowly dying from the undead and not from the Covenant. Li-008 must do whatever it takes to survive in this new hell. Well, there is one thing Spartans never die, they just go missing in action.
Crossover - Halo & Walking Dead - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 46,054 - Reviews: 67 - Favs: 202 - Follows: 247 - Updated: 5/25 - Published: 1/11/2017 - Li-008
Element Halo by
Iron Warriors reviews
When we started to expand past the Orin Arm of the Milkyway, we didn't know what to expect. Once we were out there though, things changed big time. For those brief 30 years we were the top dogs of the galaxy in all powers but like always when humanity reaches a higher seat of power, something always comes to make us fall... This time however the fall will cost our entire race.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 23 - Words: 82,562 - Reviews: 225 - Favs: 445 - Follows: 667 - Updated: 5/20 - Published: 12/11/2017 - OC
The Howling Dark by
smart grid reviews
Two years have passed since the dark day that humanity's best was extinguished. Now it appears that the dead Shepard is not so dead, and that the enemies Jorge helped defeat, are not so defeated. Shepard is going to need humanity's best to take on the genocidal threat of the Collectors. Fortunately for her, Jorge has volunteered to help.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 13,690 - Reviews: 90 - Favs: 404 - Follows: 543 - Updated: 5/18 - Published: 3/4 - Jorge-052/Noble Five, Shepard (F)
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.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 3 - Words: 19,213 - Reviews: 155 - Favs: 650 - Follows: 933 - Updated: 3/29 - Published: 7/4/2016 - Master Chief/John-117, Shepard (F)
The Lone Wolf Of The Normandy by
SSJ Lone Wolf reviews
Lieutenant Spartan Beta 312, otherwise known as Noble Six after managing to survive the fall of Reach is upgraded with Forerunner augmentations, armor, weapons and his first A.I partner is transported to a planet known as Eden Prime. A Systems Alliance colony that just happens to be under attack...well like Carter said wouldn't be a Noble mission if it were easy.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 60,035 - Reviews: 927 - Favs: 1,223 - Follows: 1,533 - Updated: 3/29 - Published: 8/9/2016 - SPARTAN-B312/Noble Six, Shepard (F)
Operation Phoenix & Raven by
Ordo Warrior reviews
Continuing from Best of Spartans and Spectres. Commander Shepard has been captured and Noble Six turns to the one group that can help save her, but will that help come at too great of a cost?
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 45 - Words: 148,085 - Reviews: 81 - Favs: 142 - Follows: 186 - Updated: 3/9 - Published: 10/21/2014 - SPARTAN-B312/Noble Six, Shepard (F)
On the Illusion of Might by
evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 20 - Words: 225,409 - Reviews: 1316 - Favs: 2,096 - Follows: 2,778 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Shepard (F), Garrus V.
Mass Effect: Of Lions And Angels by
jerseydanielgibson reviews
Jane Catherine Shepard and Sara Elaine Ryder, the spacer brat and the Cit-born, the Lion of Elysium and the Angel of Illyeria, lifelong friends and almost-sisters, find themselves mired in events concerning ProTech and a diabolical scheme. Can a SPECTRE and a Corpsman along with an eclectic crew stop a Turians' plan that may rattle the very galaxy itself? (ME AU, major changes)
Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 49 - Words: 563,289 - Reviews: 150 - Favs: 125 - Follows: 149 - Updated: 2/17 - Published: 3/7/2018 - [Liara T'Soni, Ashley W.] Shepard (F), Sara Ryder
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.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 23,850 - Reviews: 22 - Favs: 51 - Follows: 72 - Updated: 1/14 - Published: 3/27/2018
The Unknown Defender by
Gabenator5 reviews
While Shepard is closing in on Saren. Stories begin to spread among the pirates and slavers of the galaxy. Rumors of a nameless fear, of a creature, a demon wreathed in green armor. It and its allies appear from nowhere slughtering all who oppose them, then vanish without a trace. What is the purpose of this unknown faction... and what will they do next?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 115,734 - Reviews: 1005 - Favs: 2,627 - Follows: 3,433 - Updated: 1/13 - Published: 9/27/2016 - Master Chief/John-117, Cortana, Shepard (F), Tali'Zorah
The Lost Civilization by
Apollonir reviews
After the Battle of the Ark, a UNSC Pelican dropship crash lands on Thessia. Two ODSTs survive the crash and make contact with primitive Asari. Ninety thousand years later, Liara T'Soni discovers a strange looking aircraft and Human remains in an ancient cave burial chamber. The discovery she makes will take the Asari on a journey to discover their true lineage.
Crossover - Halo & Mass Effect - Rated: T - English - Mystery/Suspense - Chapters: 8 - Words: 15,182 - Reviews: 411 - Favs: 1,264 - Follows: 1,835 - Updated: 1/6 - Published: 7/2/2017 - Ashley W., Liara T'Soni, Mordin S., Shepard (M)
Staying Together by
LittleMermade reviews
31 One-Shots centered around Steve and Nat. Other characters will be in some of the stories. Now complete! Check it out :)
Avengers - Rated: T - English - Romance/Hurt/Comfort - Chapters: 31 - Words: 32,381 - Reviews: 51 - Favs: 64 - Follows: 68 - Updated: 1/5 - Published: 10/1/2018 - [Black Widow/Natasha R., Captain America/Steve R.] - Complete
The Heroes, The Giants, The Spartans by
Mr.Smooth0perat0r reviews
Kurt-051 is sent to the Mass Effect Universe and theres some twists
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 14,062 - Reviews: 12 - Favs: 44 - Follows: 75 - Updated: 12/18/2018 - Published: 11/6/2017 - Kurt-051, Admiral Hackett, P. Cole, Shepard (F) - Complete
A Boy out of Time by
Alwayssg1 reviews
This story involves James Rogers from The Next Avengers. It's a time-travel story and it is Steve/Natasha all the way. More details inside.
Avengers - Rated: T - English - Angst/Family - Chapters: 13 - Words: 24,622 - Reviews: 71 - Favs: 128 - Follows: 114 - Updated: 12/7/2018 - Published: 9/24/2018 - [Black Widow/Natasha R., Captain America/Steve R.] Iron Man/Tony S. - Complete
Desperate Times Call For Desperate Measures by
ARCCaptainFordo reviews
To defeat Horus and his fellow traitors wouldn't be easy. While the Emperor answered Horus' open challenge at Istvaan III by dispatching seven of his sons to deal with their errant brothers, the Imperium dispatched a battle group of the best forces on hand at the time to deal a blow to the traitors by attacking a Dark Mechanicus Forge World. The Dark Gods have other plans.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 5 - Words: 89,220 - Reviews: 91 - Favs: 178 - Follows: 250 - Updated: 12/6/2018 - Published: 7/16/2016
Merged Galaxy Part 1: Tenuous Pacts by
Slipspace Anomaly reviews
Nations collide as 2 alternate versions of the Milky Way Galaxy are joined into 1. As members of the SGC and the UNSC struggle to establish peaceful relations, a new threat emerges. One that includes new enemies from each of their pasts. Co-written with Jon Harper.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Chapters: 21 - Words: 164,926 - Reviews: 201 - Favs: 278 - Follows: 377 - Updated: 10/8/2018 - Published: 1/30/2017 - H. Maybourne, OC, Master Chief/John-117, C. Halsey
HALO: The Andromeda Chronicles by
UH-60 NIGHTSTALKER reviews
A collection of stories, behind the stories which forever changed a Galaxy which was not so far away. Ratings may change for future chapters.(ON EXTENDED HIATUS)
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 62,722 - Reviews: 165 - Favs: 207 - Follows: 219 - Updated: 6/19/2018 - Published: 1/4/2015
Contact of Races by
wilkins75 reviews
Sequel to Contact at Kobol (Stargate/Battlestar). The Race has thrived for hundreds of thousands of years and who recently conquered their 5th world are heading toward Tosev 3, Earth believing the conquest to be ease against the sword swing savages. Little do they know that those sword swing savages are now one of if not the most powerful force in the Galaxy, the Tau'ri.
Crossover - Stargate: SG-1 & Worldwar series - Rated: T - English - Sci-Fi/Drama - Chapters: 25 - Words: 210,603 - Reviews: 1174 - Favs: 781 - Follows: 796 - Updated: 4/3/2018 - Published: 6/17/2017 - S. Carter - Complete
Battlestar Galactica: The Guiding Fire by
GunnyStacker reviews
199 days after the Cylon attack on the 12 Colonies, a chance encounter brings the Colonial Fleet in contact with the UNSC Spirit of Fire after the events of the Forerunner Shield World. Can they work together to reach UNSC space before the Cylons wipe them all out and manage to overcome the odds without killing each other first?
Crossover - Halo & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Drama - Chapters: 13 - Words: 157,922 - Reviews: 528 - Favs: 821 - Follows: 1,087 - Updated: 2/2/2018 - Published: 11/13/2016 - J. Cutter, Serina, W. Adama, K. Thrace/Starbuck
Fraught with Peril: A Halo Mass Effect Story by
A-01 reviews
John was born for war, and even in the wake of defeating the Didact, there will be no respite. Thrust into the Mass Effect Universe he must either find his place or find his way home as his presence brings new hope to Shepard and his campaign against the approaching Reaper armada.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 15 - Words: 151,659 - Reviews: 233 - Favs: 601 - Follows: 811 - Updated: 1/28/2018 - Published: 12/16/2016
LA Bachelorette Party by
nherbie reviews
Shelton Universe #6. Kensi's friends throw her a bachelorette party.
NCIS: Los Angeles - Rated: K+ - English - Romance/Humor - Chapters: 3 - Words: 10,377 - Reviews: 41 - Favs: 36 - Follows: 36 - Updated: 6/9/2017 - Published: 5/28/2017 - Kensi B., M. Deeks - Complete
Mass Emile by
Ranschaj reviews
Emile survives the two zealots at the end of Reach, and after surviving Covenant onslaught, finds himself in the ME universe. Kick-ass picture is thanks to freejimmy on deviantart
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 28,983 - Reviews: 684 - Favs: 694 - Follows: 787 - Updated: 4/15/2017 - Published: 12/11/2012 - Emile-A239/Noble Four
HALO: The Andromeda War by
UH-60 NIGHTSTALKER reviews
Takes place 20 years after the first story. War drums are starting to sound once again and soon, the final battle to detremine the fate of Adromeda shall begin.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 47 - Words: 191,096 - Reviews: 1280 - Favs: 867 - Follows: 740 - Updated: 1/1/2015 - Published: 2/27/2013 - Complete
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: 994 - Favs: 1,012 - Follows: 688 - Updated: 2/15/2013 - Published: 8/18/2012 - Complete
The Dilgar War by
Lord of Misrule reviews
It was the event that started it all. Thirty years before Babylon 5 the Dilgar race launched an Invasion of League space, a war which would cost Billions of lives, whole races destroyed and at the end give birth to a new super power The Earth Alliance
Babylon 5 - Rated: T - English - Drama/Adventure - Chapters: 104 - Words: 1,222,457 - Reviews: 236 - Favs: 400 - Follows: 175 - Updated: 8/19/2008 - Published: 9/26/2005 - Complete
Chronicles of the Crusade Book 2: The Long Road by
JonHarper reviews
Draal and Atlantis point the way to P3X 7171 a world that may hold the key to beating the Drahk plague. SG1 is reformed with the task of finding it setting off a chain of events that will lead both Earths down the long painful road to deliverance.
TV X-overs - Rated: K - English - Adventure - Chapters: 11 - Words: 107,028 - Reviews: 108 - Favs: 177 - Follows: 193 - Updated: 5/10/2008 - Published: 9/5/2006
Homeworld Bound A SAAB NBSG crossover story Book 1 by
JonHarper reviews
After 2yrs of running from the Cylons the Colonials are on the brink. Low on Food, Fuel and Morale they must play one last game of Cat and Mouse against the Cylons. Meanwhile Earth comes face to face against an enemy far more powerful than the Chigs.
TV X-overs - Rated: K - English - Sci-Fi/Adventure - Chapters: 14 - Words: 125,559 - Reviews: 119 - Favs: 174 - Follows: 103 - Updated: 3/17/2007 - Published: 4/15/2005 - Complete
Chronicles of the Crusade Book 1: The Gateway by
JonHarper reviews
The Earth Alliance has been attacked by the Drahk leaving Earth Quarantined with the Plague. As the ISA searches the Galaxy looking for a cure help comes from a most ulikely source. Stargate Command.
TV X-overs - Rated: T - English - Adventure/Drama - Chapters: 21 - Words: 128,936 - Reviews: 222 - Favs: 253 - Follows: 134 - Updated: 8/23/2006 - Published: 10/4/2005 - Complete