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Discarded Blade, Renewed Purpose
by TheLandMaster reviews
A weapon, a warrior, a soldier, a blade. He had spent years in struggle and combat, and wished only to rest. His respite is given, and cut short just as quickly. But his battlefield is now far away, and his enemies from even further beyond. His name is Excalibur, and he was the first Tenno. He will be so again.
Crossover - Halo & Warframe - Rated: M - English - Sci-Fi/Adventure - Chapters: 16 - Words: 80,174 - Reviews: 148 - Favs: 374 - Follows: 463 - Updated: 1/20 - Published: 1/21/2020 - Master Chief/John-117, Cortana, SPARTAN-B312/Noble Six, Excalibur
The Unknown Defender
by Gabenator5 reviews
While Shepard is closing in on Saren, something odd is happening in the Terminus systems. A new faction stirs, its green-clad enforcers seemingly unstoppable. Rumors spread, pirate bases going dark, both the enslaved and kidnapped alike are discovered free. Who are these new interlopers and what is their goal? For good or ill the powers that be intend to find out.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 121,911 - Reviews: 1263 - Favs: 3,333 - Follows: 4,228 - Updated: 1/16 - Published: 9/27/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Leviathan
by A-01 reviews
A bold new world - A strange new reality - Fresh trials, tribulations, allies, and enemies. John fell through the portal from the Mantles Approach, but his luck works in mysterious ways. Now stranded in an alternate reality, how will he strive forward? The galaxy takes a sharp turn from the world we know, and the Reaper threat looms just as large, but no longer so uncontested.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 24 - Words: 622,232 - Reviews: 728 - Favs: 1,412 - Follows: 1,770 - Updated: 1/16 - Published: 9/4/2020 - [Master Chief/John-117, Miranda L.] [Shepard, Tali'Zorah]
by The Incredible Muffin reviews
Some destinies are written out centuries, or even millennia, ahead of time. However, when destiny is derailed, new plans have to be implemented. Sometimes, that involves ripping someone away from the peaceful end they seek and thrusting them into a tide of never-ending war in order to fix what can never be repaired.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Supernatural - Chapters: 33 - Words: 224,487 - Reviews: 940 - Favs: 1,130 - Follows: 1,433 - Updated: 1/13 - Published: 5/29/2019
Voyage unto Infinity
by supertruckin reviews
The USS Voyager comes face to face with the massive ship that is the UNSC Infinity after Voyager's nearly fatal first test of their quantum slipstream drive. Getting home isn't their only issue. They will have to work together in order to unravel the ancient threat that plagues the new galaxy that they find themselves in. Star Trek:Voyager, Mass Effect, and Halo triple crossover
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 79,399 - Reviews: 597 - Favs: 1,466 - Follows: 1,932 - Updated: 1/2 - Published: 4/10/2019 - Master Chief/John-117, Cortana, Shepard
A New Player in the Force: The Gathering Storm
by USSExplorer reviews
The second book in the A New Player in the Force series. The story begins 4 years before the battle of Naboo with Cam recovering from his trial of adulthood with the Mandalorians. His Jedi Masters are Dooku and Fay. (and why doesn't she have a tag?) MC has a light-Gamer system.
Star Wars - Rated: M - English - Adventure - Chapters: 4 - Words: 77,754 - Reviews: 687 - Favs: 4,368 - Follows: 5,177 - Updated: 12/24/2021 - Published: 9/20/2021 - Count Dooku, OC
Beneath a Broken Moon
by Unseen Lurker reviews
He was a hero, vanquisher of men and beasts, daedra and dragons. But now, Fate calls him elsewhere. How will he fare in this world, so unlike his own? "Wait... are those... rabbit ears?"
Crossover - Elder Scroll series & RWBY - Rated: T - English - Fantasy/Adventure - Chapters: 21 - Words: 125,220 - Reviews: 799 - Favs: 3,006 - Follows: 3,759 - Updated: 11/30/2021 - Published: 10/13/2014 - Dragonborn/Dovahkiin
Coming of the Red Anchor
by J26596 reviews
What happens when a fleet of 21st century ships suddenly appears off the Northern coast? Do they cope with adjusting to a medieval society? Do they win and rise or loose and fall into dust and ashes in the game of thrones? Does include some book characters but mainly TV based with probable AU. Rate M for Language and violence
Game of Thrones - Rated: M - English - Drama/Fantasy - Chapters: 29 - Words: 182,456 - Reviews: 682 - Favs: 1,358 - Follows: 1,671 - Updated: 10/24/2021 - Published: 4/5/2020 - Jon S., Eddard S., OC
A New Player In The Force
by USSExplorer reviews
A soldier wins an afterlife lottery and is given the chance to live again in another universe with access to Gamer-like powers. Not a full-on x-over, but has elements that are similar to those in 'The Gamer' manhwa. OC/Quasi-SI. NOTE: The story starts almost 4000 years before the Prequels but arrives in that era by the end of the Prologue. Continued in the "The Gathering Storm."
Star Wars - Rated: T - English - Adventure - Chapters: 46 - Words: 420,000 - Reviews: 4184 - Favs: 10,459 - Follows: 11,577 - Updated: 9/20/2021 - Published: 5/22/2018 - OC - Complete
Mass Effect: End of Days
by Postmeat reviews
An ancient danger threatens the galaxy, unknown to all. A humanity which never discovered Prothean ruins, expanding through space on their own, emerges. Joined with the machines they created, hardened by war with a terrifying enemy, they read the writing on the wall. But will the galactic community already there listen to these newcomers, stirring up trouble everywhere they go?
Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 20 - Words: 234,080 - Reviews: 725 - Favs: 2,709 - Follows: 3,309 - Updated: 8/1/2021 - Published: 3/8/2015 - Admiral Hackett, Shadow Broker, Shepard, Rachni Queen
The Horizons Beyond
by JJ2161 reviews
When two worlds with predefined mindsets, knowledge, and ideals have to throw all of that out the window after contacting a new player. Humanity. (Babylon 5/Mass Effect AU crossover with a Star Trek-based Humanity and Stargate-based Precursors)
Crossover - Babylon 5 & Mass Effect - Rated: T - English - Chapters: 19 - Words: 163,996 - Reviews: 292 - Favs: 574 - Follows: 702 - Updated: 5/10/2021 - Published: 9/29/2017
Transform Effect 1: Rise a Prime
by RECKLESS SOLDIER-MS reviews
Two galaxies isolated from one another meet for the first time, just as the war between two opposing factions escalates. But the galaxy has more than first contact with a race of machines to worry about, ideals will be tested as an ancient evil returns to begin a cycle of genocide. A leader from the ranks of the Autobots must rise to stop both the Decepticons and the Reapers.
Crossover - Transformers/Beast Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 32 - Words: 212,517 - Reviews: 244 - Favs: 331 - Follows: 332 - Updated: 5/7/2021 - Published: 2/3/2014 - Optimus Prime, J. Garson
by BattleUnit3 reviews
They studied Organics. All they ever saw was fear from Sentient Synthetics. Geth had no place in their world. But by chance they discovered a species on the brink of extinction. They worked along side their creations as equals. They didn't care who or what you are. They only cared about their City.
Crossover - Mass Effect & Frostpunk - Rated: T - English - Adventure - Chapters: 15 - Words: 33,405 - Reviews: 452 - Favs: 1,106 - Follows: 1,501 - Updated: 2/5/2021 - Published: 5/17/2018
by mp3.1415player reviews
Technological incompatibility can cause serious issues even at a simple level. When it comes to interstellar travel, those issues can be quite profound...
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 127,546 - Reviews: 857 - Favs: 3,277 - Follows: 3,832 - Updated: 1/5/2021 - Published: 8/18/2019
by Riker's Beard reviews
This story started out as first contact between the Twelve Colonies of Kobol and an alien civilization when Starbuck is rescued by an alien ship after chasing a Cylon heavy raider in the orbit of a gas giant. I decided to take the story into a completely new direction and it has evolved into something a lot more complex, now containing multiple crossovers.
Crossover - Battlestar Galactica: 2003 & X-overs - Rated: T - English - Sci-Fi/Humor - Chapters: 33 - Words: 52,419 - Reviews: 82 - Favs: 112 - Follows: 128 - Updated: 11/19/2020 - Published: 7/22/2014
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: 7 - Words: 17,121 - Reviews: 331 - Favs: 1,019 - Follows: 1,564 - Updated: 9/28/2020 - Published: 1/7/2018 - Tali'Zorah
by TallYapflip reviews
The First Contact War brought untold destruction to Earth, reducing Humanity to a shell of its former self. For 900 years, Humanity has been working tirelessly to lay claim to its own slice of the Milky Way Galaxy, and they are prepared to bring the Council to its knees to accomplish their goals. (Massive AU, New Technologies, and a far different humanity.)
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 22 - Words: 109,371 - Reviews: 567 - Favs: 2,241 - Follows: 2,713 - Updated: 1/28/2020 - Published: 3/4/2016 - [Samantha T., Shepard] Admiral Hackett, OC
The Bringer Of War
by thetriumphator reviews
A man from a world set on fire finds one in a long period of tenuous peace. The people of Remnant will soon find that even in a world of bloody evolution, war...war never changes. Tale of Two Wastelands character.
Crossover - Fallout & RWBY - Rated: M - English - Adventure - Chapters: 193 - Words: 286,593 - Reviews: 1838 - Favs: 1,571 - Follows: 1,883 - Updated: 7/19/2019 - Published: 8/31/2015 - Lone Wanderer, Courier, Pyrrha N.
Mass Effect: Elite
by Kelial reviews
Explorers are a strange breed. What happens when one stumbles across a group of aliens who's government's ego is larger than the space they control? How will the people of those two governments interact? TUNE IN TO FIND OUT!
Crossover - Mass Effect & Elite - Rated: T - English - Chapters: 11 - Words: 76,143 - Reviews: 129 - Favs: 318 - Follows: 424 - Updated: 1/8/2019 - Published: 7/16/2018
A Spartan in Westeros (A Song of Ice and Fire X Halo Crossover)
by Agailius reviews
When the Forward Unto Dawn lands in the North, it sets the stage for untold repercussions which will ripple throughout the whole of Westeros. With civil war threatening to tear the land apart, and an entirely more dire threat arising beyond the Wall, John and Cortana take it upon themselves to again protect the whole of mankind; from both it's own demons... and those beyond.
Crossover - Halo & A song of Ice and Fire - Rated: M - English - Sci-Fi/Fantasy - Chapters: 21 - Words: 128,153 - Reviews: 1692 - Favs: 4,082 - Follows: 4,675 - Updated: 10/1/2018 - Published: 6/3/2014 - Master Chief/John-117, Cortana, Jon S., Eddard S./Ned
by Transwarrior666 reviews
They came to Thessia 38,000 years ago to save our ancestors from the demons. We thought they had all disappeared, and yet they remain; beyond relay 314, sleeping under the shadow of the Zone, waiting for the return of their enemies. We call them Sta'kars, creatures of light and wisdom, kindred of the gods, but I know their true name: They call themselves Humans. - Liara T'soni.
Crossover - Mass Effect & S.T.A.L.K.E.R. - Rated: K - English - Sci-Fi/Supernatural - Chapters: 22 - Words: 143,924 - Reviews: 282 - Favs: 782 - Follows: 843 - Updated: 3/29/2018 - Published: 5/5/2015 - Complete
Stuck in a Landslide
by Kingly Crimson reviews
With the Doomslayer being transported to the Chaos Realms after a scuffle with a revived Cyberdemon, It is now time for everyone to give their condolences. To the Demons of course. Warnings: Rated M for Sexual Themes in some Chapters as well as a lot of Blood and gore. (What did you expect. It's a Doom crossover with Warhammer for crying out loud!)
Crossover - Warhammer & Doom - Rated: M - English - Sci-Fi/Adventure - Chapters: 17 - Words: 64,083 - Reviews: 520 - Favs: 1,902 - Follows: 2,145 - Updated: 2/24/2018 - Published: 11/20/2016 - Daemons, Eldar, Grey Knights, Doomguy
by white1498 reviews
this is a repost from fimfiction so please if you want me to write this story then don't expect chapters very big or regular updates.
Crossover - My Little Pony & Command & Conquer - Rated: K - English - Chapters: 16 - Words: 114,952 - Reviews: 15 - Favs: 10 - Follows: 12 - Updated: 1/1/2018 - Published: 12/24/2017
by 123azindude reviews
Few men get a second chance to be the hero they yearned to be, even fewer are succesful the second time around. One man decides to do everything in his power to give the people in the galaxy an advantage, with one particular individual in mind, Commander Shepard. This story is an OC and SI insert, with perspectives of other characters of Mass Effect. Includes technology from Halo.
Mass Effect - Rated: M - English - Romance/Adventure - Chapters: 6 - Words: 29,476 - Reviews: 69 - Favs: 291 - Follows: 442 - Updated: 12/24/2017 - Published: 5/16/2016 - J. Garson, Illusive Man, Shepard, OC
by Charles Bhepin reviews
aka The Nuclear Tank Maiden Stories.
Crossover - Bolo series & Kantai Collection - Rated: T - English - Adventure/Humor - Chapters: 3 - Words: 13,063 - Reviews: 17 - Favs: 53 - Follows: 52 - Updated: 11/13/2017 - Published: 11/9/2017
Of Synths, Two-Headed Bears, and Huntsmen
by Geralt of Riften reviews
Three legendary Wastelanders are sent to paradise. A Courier under the flag of a nation. A Survivor who has united the Commonwealth under the banner of technology. A Wanderer with nothing but tragedies weighing on his back. Remnant's future will be shaped by these three, whether for ill or good.
Crossover - Fallout & RWBY - Rated: M - English - Adventure - Chapters: 8 - Words: 40,937 - Reviews: 43 - Favs: 137 - Follows: 187 - Updated: 11/2/2017 - Published: 5/8/2017 - Courier, Sole Survivor
by Courier13 reviews
A courier known for his conviction finds himself trapped on Remnant. With the experience of one marred by cruelty and violence, he'll continue down the roads he finds before him. Until the end. Cover Image, used with permission, by zetsumeinninja.
Crossover - Fallout & RWBY - Rated: T - English - Adventure - Chapters: 11 - Words: 97,896 - Reviews: 235 - Favs: 493 - Follows: 652 - Updated: 10/17/2017 - Published: 10/19/2015 - Courier
The Foundation Must be True
by Tankred reviews
In an attempt to summon the best familiar she could, Louise altered the words of the summoning for maximum power. What she summoned was something that had never before been seen in this world, and now she has an army at her beck and call. Nothing will ever be the same. Tiberium Universe.
Crossover - Command & Conquer & Familiar of Zero - Rated: T - English - Fantasy/Sci-Fi - Chapters: 11 - Words: 152,561 - Reviews: 526 - Favs: 1,102 - Follows: 1,284 - Updated: 10/13/2017 - Published: 4/12/2015 - LEGION, Louise, Siesta
A New Dragon Rises
by Kody117 reviews
When the Targaryens conquered Westeros, it sparked the greatest dynasty. Nearly three centuries have passed and a new dragon has arrived. Exiled from their homeland, the three headed dragon will face off against the might of the Dovahkiin.
Crossover - Elder Scroll series & Game of Thrones - Rated: M - English - Adventure/Fantasy - Chapters: 4 - Words: 13,810 - Reviews: 29 - Favs: 89 - Follows: 131 - Updated: 10/7/2017 - Published: 5/30/2017 - Dragonborn/Dovahkiin, Ysolda, Jon S., Eddard S.
The Eternal Cycle
by ZF IAnswerToNoOne reviews
The war against Amon is over. The Terrans and Protoss create an alliance after a 20 year unofficial ceasefire. When the Zerg join, the Sector has nothing to worry about, right? Well, what about the discovery of a new government and an enemy that could be worse than Amon? FemShep.
Crossover - StarCraft & Mass Effect - Rated: T - English - Adventure - Chapters: 10 - Words: 56,895 - Reviews: 115 - Favs: 379 - Follows: 507 - Updated: 9/29/2017 - Published: 11/7/2016 - J. Garson, OC
The Messiah Has Come
by Ideas-Guy reviews
Raiders, rapists, and slavers die without exception. That was the code that Jonah Wick used as a moral compass in the Captial Wasteland, and it served him well. He turned that unlivable hellhole into the safest haven in the American wasteland and when he suddenly finds himself in the grand city of Myr? Well, it was time to spread the gospel of him through mini-nukes yet again.
Crossover - Fallout & A song of Ice and Fire - Rated: M - English - Adventure/Humor - Chapters: 5 - Words: 30,861 - Reviews: 246 - Favs: 1,201 - Follows: 1,388 - Updated: 8/7/2017 - Published: 12/6/2016 - Lone Wanderer
Harry Potter and the Deathly Dinochrome
by deathjester3 reviews
At the Final Battle, Harry makes use of a powerful and dangerous spell, and let's Voldemorts overconfidence run away with him!
Crossover - Harry Potter & Bolo series - Rated: K - English - Sci-Fi/Drama - Chapters: 1 - Words: 1,857 - Reviews: 12 - Favs: 35 - Follows: 18 - Published: 6/1/2017 - Complete