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Halo: The Ori War by
DX1998 reviews
7 Months Ago...the USS Odyssey vanished without a trace. Seven long months, that saw the Ori march almost unopposed through the Milky Way Galaxy. With none able to stand against them, the armies of Origin were triumphant in all battles. But now...now the Odyssey has returned, and with the aid of the UNSC and Sangheili, they will bring the fight to the Ori.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Adventure/Drama - Chapters: 15 - Words: 60,674 - Reviews: 519 - Favs: 865 - Follows: 1,095 - Updated: 8/7 - Published: 10/7/2014
Stargate: The Twelve Colonies by
Seraphin2011 reviews
The Cylons are preparing to attack the Colonies, and they are determined to end all human existence once and for all. But the Cylons don't know the Terrans have learned about their attack, and they will not stay idle and let the Cylons commit such atrocity, not if they can help it. This is a spin-off from the other story I'm writing, splitting around the half of the second book.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 30 - Words: 237,748 - Reviews: 884 - Favs: 761 - Follows: 1,002 - Updated: 8/4 - Published: 5/21/2013
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: 3556 - Favs: 4,078 - Follows: 4,897 - Updated: 7/25 - Published: 10/9/2013 - Master Chief/John-117, Arbiter, T. Lasky, Shepard (M)
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: 20 - Words: 190,674 - Reviews: 1329 - Favs: 2,209 - Follows: 2,703 - Updated: 6/11 - Published: 1/26/2014
Naruto: The Kaiju Renaissance by
1Ring2ruleThemAll reviews
This is the writer's first story. It is remaining up because of multiple requests from readers. Contains Powerful Naruto. OCs. Reader created OCs. WILL NOT BE CONTINUED BECAUSE OF REMAKE! New remake in the works!
Crossover - Naruto & Godzilla - Rated: T - English - Adventure/Sci-Fi - Chapters: 25 - Words: 160,809 - Reviews: 148 - Favs: 270 - Follows: 260 - Updated: 6/10 - Published: 3/7/2014 - Godzilla, Naruto U., Kakashi H., Zabuza M. - Complete
Origins of Humanity by
Aussie reviews
AU SG from mid Season 2. What would happen if SG1 gated to Caprica, three years before the Cylon Attack on the Colonies. What would happen if the SGC had access to the Colonies' industrial might early on in their fight against the Goa'uld!
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 23 - Words: 91,451 - Reviews: 283 - Favs: 327 - Follows: 443 - Updated: 1/24/2018 - Published: 1/8/2007
Halo: Rise of the Empire by
theotherpianist reviews
After the end of the Great War Humanity thought they were done fighting. They were wrong. When a operation to find two UNSC distress signals is launched, a galaxy suddenly becomes entangled in a war they never wanted to fight, be in, or witness: the dramatic power play that was the Clone Wars. Amidst the conflict, one Spartan's legacy and story will begin in a galaxy far, far away.
Crossover - Star Wars & Halo - Rated: T - English - Chapters: 28 - Words: 257,094 - Reviews: 457 - Favs: 568 - Follows: 662 - Updated: 12/30/2017 - Published: 3/16/2014 - Anakin Skywalker, Obi-Wan K., SPARTAN-B312/Noble Six, OC
Collateral Damage by
Tarkendar reviews
The team of SG-1, while on a mission of trade with a planet far out in the galaxy, encounter an attack by the Goa'uld. As they escape through the Stargate a blast of energy strikes the gate. When the team arrives at the other end, they find themselves in the warm, wonderful town of Sunnydale. All rights reserved to their respective copyright holders
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 14,131 - Reviews: 27 - Favs: 45 - Follows: 145 - Updated: 7/3/2016 - Published: 1/5/2013
Aliens: Bane of the Reapers by
SomeGuyOverHere reviews
The War with the Reapers has ended and in the few years that has passed since Shepard activated the Crucible ,the team that helped her, has split up to help their peoples in the effort. Ashley Williams, now a Spectre, is called on a mission, given a team, and sent to the Mars to fight a remnant of Cerberus. But Cerberus's greed has released a force even the Reapers once feared.
Crossover - Aliens/Predator & Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 15 - Words: 94,124 - Reviews: 86 - Favs: 124 - Follows: 107 - Updated: 3/27/2016 - Published: 12/25/2012 - Ashley W.
HaloTech by
Thelordofstorms reviews
What happens when a Naval Wing from the year 3199 jumps into the UNSC's Darkest Hour over a world named Reach. Chapter 14 UP! Chapter 15 in progress. Chapter 16, 17, and 18 are outlined. Expect minimum 20 chapters plus epilogue. Chapter 14 edited- 1-1-16. Added missing content to timeline.
Crossover - Mechwarrior/Battletech & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 14 - Words: 80,221 - Reviews: 119 - Favs: 236 - Follows: 261 - Updated: 12/26/2015 - Published: 12/25/2009
A different path by
mtb17 reviews
Humanity has walked a different path. No mass effect fields or Element Zero, but ShockPoint Drives and Gravity Shields. When Humanity first makes contact, the council hopes they can help in the fight against sovereign, a reaper rogue spectre called Saren seems to control. However, the council does not suspect that their new "allies" could be far more dangerous...
Crossover - Mass Effect & Dead Space - Rated: M - English - Sci-Fi/Suspense - Chapters: 4 - Words: 19,502 - Reviews: 59 - Favs: 178 - Follows: 213 - Updated: 8/26/2015 - Published: 1/5/2013
SG-1's Long Trek Home by
Almedha reviews
An every-day boring trip through the Stargate takes Jack, Daniel, Teal'c, and Sam where no one has gone before. Well, sort of. (ON HOLD - I haven't forgotten it, I just can't stand my ending anymore. On the hunt for a new one.)
Crossover - StarTrek: The Next Generation & Stargate: SG-1 - Rated: T - English - Adventure/Friendship - Chapters: 22 - Words: 43,870 - Reviews: 92 - Favs: 153 - Follows: 252 - Updated: 12/3/2014 - Published: 1/4/2013
A Change of Fate by
DX1998 reviews
While fleeing from the Ori after the death of their alllies, the Odyssey is near destruction. In a desperate bid for surviaval, a future version of Samantha Carter develops a plan to use the power of the Ori beam to save the ship. But it goes horribly wrong...now the cruiser is in a new reality, and a new war. Can they help their cousins in the UNSC? Or will the Covenant prevail?
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Adventure - Chapters: 29 - Words: 104,009 - Reviews: 761 - Favs: 965 - Follows: 968 - Updated: 10/7/2014 - Published: 1/17/2013 - S. Carter, Master Chief/John-117 - Complete
Detego Celestis by
Chrysanthemums5 reviews
Woven together, yet completely apart. Facing a losing battle with the Ori, the SGC knows they need help. The Ancients are unwilling to interfere, but what if the next best thing was right there all along, hidden just out of sight? Daniel/Vala, Harry/Ginny, Ron/Hermione. A mostly canon blending of the two worlds. {On permanent hiatus/up for adoption. PM for details.}
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 8 - Words: 21,245 - Reviews: 114 - Favs: 291 - Follows: 529 - Updated: 9/10/2014 - Published: 10/20/2013 - D. Jackson, Vala, Harry P., Hermione G.
The Only Way is Forward by
BlindKnight reviews
When a mysterious portal appears at the edge of the Oort Cloud in space, a UNSC fleet is dispatched, only to find themselves in a completely different universe where yet another ancient Galactic threat is upon them. Post Halo 4, ME1.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 5 - Words: 11,388 - Reviews: 64 - Favs: 245 - Follows: 335 - Updated: 5/3/2014 - Published: 1/26/2014
Stargate: Thirdspace by
Spearhead reviews
When a Taskforce of the Tau'ri Federation Navy is attacked on a mission of exploration, a strange occurrence catapults this force into a new universe. The events that sent them to this universe, also brings war to the Tau'ri Federation. A war of annihilation and extinction.
Crossover - Babylon 5 & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 20,335 - Reviews: 168 - Favs: 249 - Follows: 309 - Updated: 3/14/2014 - Published: 8/27/2012
Faith and Fury by
ElysiaDreaming reviews
A Space Marine fleet emerges from the Warp into an alien galaxy, one containing its own Galactic Empire. Very erratic updates, so take that as you will. Accepting submissions for OC's (See chapter 6 for form)
Crossover - Star Wars & Warhammer - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 12,539 - Reviews: 72 - Favs: 69 - Follows: 113 - Updated: 3/5/2014 - Published: 1/8/2013 - Thrawn, Darth Vader, Space Marines
HaloGate: A Spartan's Test by
Caedous reviews
After being engaged by Covenant forces, Spartan Lieutenant Commander Tom-292 is forced to make an emergency jump into slipspace. Upon his exit however he is confronted by... Earth. Just not the Earth he knows. Now he and his A.I. Hrothgar must quickly adapt to a situation that gets stranger and stranger by the second.
Crossover - Stargate: SG-1 & Halo - Rated: K - English - Sci-Fi - Chapters: 2 - Words: 2,741 - Reviews: 22 - Favs: 40 - Follows: 70 - Updated: 2/4/2014 - Published: 2/2/2014
The Bow and the Gun by
TheBleachDoctor reviews
A bullet is more technologically advanced than an arrow, yet both can kill. When the UNSC discovers a Forerunner Slipspace gate leading to a galaxy far, far away, a certain rebellion gets a much appreciated benefactor. Set during the second and third movie, and Post-Human-Covenant war. Rated T for language and violence. (Any complaints about power values will be summarily ignored)
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 18,487 - Reviews: 243 - Favs: 504 - Follows: 682 - Updated: 1/1/2014 - Published: 11/28/2012 - Ahsoka T., Luke S., Master Chief/John-117, C. Halsey
Lords and Gods Above by
internet weaver reviews
So the TARDIS lands in the SGC, complicating an already delicate situation.
Crossover - Doctor Who & Stargate: SG-1 - Rated: K+ - English - Drama - Chapters: 7 - Words: 9,673 - Reviews: 60 - Favs: 111 - Follows: 213 - Updated: 12/9/2013 - Published: 7/30/2012
Legacy by
firstprime1230 reviews
When the Odyssey is transported to the mass effect universe, can SG-1 survive another impossible mission and find a way home. Or will they finally succumb to an ancient evil that awaits them. Sorry for crappy summary, hope you enjoy.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 24,577 - Reviews: 260 - Favs: 459 - Follows: 657 - Updated: 11/10/2013 - Published: 1/17/2013
The Ideals of Life by
The Lone Dark Jedi reviews
After Unending Odyssey meets a Colonial Battle group headed by the Pegasus. When a Cylon infiltrator hacks the Pegasus's weapons and opens fire, the rest of the Colonial ships soon follow suit. Later, Earth deals with Asurans, a Wraith Super Hive, Colonial attacks, and Cylon Attacks. Will have a squeal.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: K - English - Chapters: 11 - Words: 37,378 - Reviews: 126 - Favs: 158 - Follows: 171 - Updated: 11/6/2013 - Published: 8/22/2013 - Complete
Titan by
Absolute Edge reviews
It is lost in a world it doesn't understand. It is diseased and cannot control its own actions. It can only hope those it encounters can survive long enough to stop it from harming anyone else. Just an idea I had and decided to roll with. Let me know what you think. Enjoy.
Crossover - Mass Effect & EVE Online - Rated: K+ - English - Sci-Fi/Horror - Chapters: 3 - Words: 3,946 - Reviews: 12 - Favs: 25 - Follows: 43 - Updated: 8/9/2013 - Published: 6/5/2013
Mass of Eden by
Gaius Marus reviews
Shepard overcomes indoctrination and fires the catalyst, disabling the Reapers. An unintended side effect of the catalyst causes Haestrom's sun to oddly generate a stable wormhole to universe filled will cybernetic lifeforms more terrible then Reapers, Capsuleers.
Crossover - Mass Effect & EVE Online - Rated: T - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 7,547 - Reviews: 13 - Favs: 32 - Follows: 54 - Updated: 4/7/2013 - Published: 1/2/2013 - Shepard (M)
SGCowboys by
yummyjellybean reviews
SG-1 are on a routine mission when they come across a simple town with advanced technology. What will happen when the military team meet some rather cautious and shady space cowboys?
Crossover - Stargate: SG-1 & Firefly - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 3,641 - Reviews: 24 - Favs: 24 - Follows: 60 - Updated: 4/6/2012 - Published: 3/16/2012
War Assets by
Biddybam reviews
Shepard attempts to rally the various races to come together and fight off the reapers. As he goes through a wormhole running away from Cerberus, he stumbles across an entire new civilization, with an armada that blocks out the stars.
Crossover - Mass Effect & EVE Online - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,658 - Reviews: 13 - Favs: 39 - Follows: 55 - Published: 3/17/2012 - Shepard (M)
Denton Effect by
Sckewer reviews
An AU where the events of Deus Ex the conspiracy predate the discovery of Mass Relays, and JC Denton survives through techno babble in a coma until being revived by the Cerberus Lazarus Project instead of John Shepard.
Crossover - Deus Ex & Mass Effect - Rated: T - English - Chapters: 4 - Words: 8,270 - Reviews: 2 - Favs: 16 - Follows: 20 - Updated: 2/21/2012 - Published: 2/8/2012
Battleship Strike Group 10 by
adm-frb reviews
In an alternate timeline where the Federation and Klingon Empire is at war with the Romulan Star Empire a Federation Battleship Strike Group led by the USS Enterprise is transported to an alternate universe...
Crossover - StarTrek: The Next Generation & Stargate: SG-1 - Rated: T - English - Chapters: 2 - Words: 17,266 - Reviews: 51 - Favs: 147 - Follows: 213 - Published: 2/5/2012
An Earthquake in the Force by
Jedi Buttercup reviews
"Not so loud, Rodney," John said, pressing a hand to his temple. "Was it just my imagination, or did I just land the city with my mind?"
Crossover - Star Wars & Stargate: Atlantis - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 3,316 - Reviews: 28 - Favs: 107 - Follows: 46 - Published: 12/30/2011 - Yoda, John S. - Complete
Rough Road to Travel by
ObscureEnough reviews
Hunted by the Alliance and being chased by Reavers, the crew of Serenity take a chance on the dimensional rip in front of them. But have they led Reavers to humanity's home world?
Crossover - Stargate: SG-1 & Firefly - Rated: T - English - Adventure - Chapters: 1 - Words: 2,272 - Reviews: 13 - Favs: 40 - Follows: 26 - Published: 12/12/2011 - Complete
Righteous Ascent by
Allard-Liao reviews
A mercenary unit, fresh from a stunning victory, jumps to their next home...only to find that Fate wants them elsewhere, on a mission to save humanity. Are they up to the challenge?
Crossover - Mechwarrior/Battletech & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 9 - Words: 21,006 - Reviews: 11 - Favs: 31 - Follows: 39 - Updated: 11/16/2011 - Published: 4/14/2011
A Legacy of Blood by
Anubyte reviews
As a dark secret of the Ancients is uncovered, a large wormhole is discovered near Goa'uld territory. The evil that spews forth from it will change everything SG1 thought they knew of Humanity's origins and might set things right.
Crossover - Stargate: SG-1 & EVE Online - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 19,815 - Reviews: 54 - Favs: 90 - Follows: 117 - Updated: 7/20/2011 - Published: 5/27/2010
When Worlds Collide by
Trinaluv33 reviews
When The Doctor finds himself stranded on the SGC base, his Tardis needing repairs, will he be able to gain the trust of the Sg-1, or will Sam's minor crush on the Doctor cause Jack's anger to take over? R&R!
Crossover - Doctor Who & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 6,553 - Reviews: 94 - Favs: 60 - Follows: 117 - Updated: 7/8/2011 - Published: 8/11/2010 - 10th Doctor, J. O'Neill
Mark of the Forerunners by
Subtlepasta reviews
The Red Marker has fallen into Flood hands and Isaac now works directly with the UNSC, alongside Master Chief. Rated M for horror and language.
Crossover - Halo & Dead Space - Rated: M - English - Horror/Sci-Fi - Chapters: 3 - Words: 7,366 - Reviews: 16 - Favs: 14 - Follows: 14 - Updated: 11/17/2010 - Published: 7/23/2010 - Master Chief/John-117, Isaac C.
Alternative Futures by
jaina-lotr reviews
SG-1 get pulled through a spatial anomaly, but what they find on the other side is not what they expected. Could this be their future or will it turn out different? Of course they run into some pretty mean bad guys: The Borg. Crossover with ST: Voyager.
Crossover - StarTrek: Voyager & Stargate: SG-1 - Rated: K+ - English - Adventure - Chapters: 3 - Words: 3,187 - Reviews: 80 - Favs: 60 - Follows: 135 - Updated: 2/8/2010 - Published: 2/1/2008
Shockpoint Effect reviews
What if humanity started down a different path, one where they developed shockpoint technology instead?
Crossover - Mass Effect & Dead Space - Rated: M - English - Sci-Fi/Horror - Chapters: 1 - Words: 395 - Reviews: 11 - Favs: 24 - Follows: 32 - Published: 10/27/2013 - Shepard (F), Sovereign, Isaac C., OC