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This Isn't Kansas
by andrewjameswilliams reviews
Returning from Orilla the Odyssey engages in a fierce battle with the Ori the outcome of which catapults the ship and her crew into a different universe full of dangers beyond anything encountered by the SGC before.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: T - English - Sci-Fi/Adventure - Chapters: 25 - Words: 140,814 - Reviews: 393 - Favs: 578 - Follows: 636 - Updated: 6/11 - Published: 4/5/2014 - D. Jackson, C. Mitchell, Gloval, Karl/River - Complete
Shiver me Timbers!
by wolfd890 reviews
He'd slumbered in Hoth's cold embrace for millennia before being exhumed by the Alliance. Could he help them defeat the Empire? A HP SW crossover(obviously)
Crossover - Star Wars & Harry Potter - Rated: M - English - Adventure/Humor - Chapters: 16 - Words: 128,240 - Reviews: 1369 - Favs: 5,047 - Follows: 6,976 - Updated: 5/24 - Published: 12/18/2015 - Luke S., Leia O., Harry P.
by RiptideZ reviews
Following the Human-Covenant War, Mankind rebuilt; they adapted and recovered, but they never forgot the nightmare. They never forgot the genocide - billions dead and planets turned to glass. The UNSC established the Task Force Dominion to set the future into motion. The Glasslands Campaign begins on the former colony, Aragon. Formerly a Halo-Mass Effect crossover, discontinued.
Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 8,687 - Reviews: 78 - Favs: 175 - Follows: 242 - Updated: 8/6/2020 - Published: 2/16/2013 - OC
The Havoc side of the Force
by Tsu Doh Nimh reviews
I have a singularly impressive talent for messing up the plans of very powerful people - both good and evil. Somehow, I'm always just in the right place at exactly the wrong time. What can I say? It's a gift.
Crossover - Star Wars & Harry Potter - Rated: T - English - Fantasy/Mystery - Chapters: 24 - Words: 207,600 - Reviews: 7602 - Favs: 17,341 - Follows: 19,507 - Updated: 8/24/2019 - Published: 9/6/2012 - Anakin Skywalker, Harry P.
Alternate Past, Uncertain Future Mk II
by Follower38 reviews
Co-written with aDarkOne History, a single event, can alter so much, let alone two. The San'Shyum are no more. The Krogan Empire stands strong. Humanity is now a giant among the stars. With three Galactic Superpowers in play, will an encounter see a new Golden Age, or an Era of War? (Chapters 1-12 being rewritten)
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 33 - Words: 279,720 - Reviews: 766 - Favs: 734 - Follows: 844 - Updated: 10/6/2018 - Published: 8/28/2012
The Dangers of Foresight
by Anne Camp aka Obi-quiet reviews
Anakin was a Jedi once. He was also a 45-year-old Sith Lord. Yet now he's nine again and back at the Jedi Temple, determined to change destiny. To do so he just has to juggle preventing Dooku from joining Sidious, starting a personal war against slavery, avoiding Palpatine, and Jedi training to all while maintaining the facade of a child. Too bad that's never been his strong point.
Star Wars - Rated: T - English - Hurt/Comfort/Family - Chapters: 33 - Words: 194,759 - Reviews: 2917 - Favs: 6,797 - Follows: 6,522 - Updated: 7/29/2018 - Published: 1/12/2014 - Anakin Skywalker, E. Palpatine, Obi-Wan K., Count Dooku - Complete
Hogwarts Battle School
by Kwan Li reviews
AU. Voldemort kills Dumbledore but is defeated by a child. In the aftermath, Snape becomes the Headmaster and radically changes Hogwarts. Harry Potter of House Slytherin begins his Third Year at Hogwarts Battle School and realizes that friend and foe are too similar for his liking. Competing with allies and enemies, Harry finds there is a cost to winning.
Harry Potter - Rated: M - English - Adventure/Drama - Chapters: 52 - Words: 367,472 - Reviews: 2532 - Favs: 3,542 - Follows: 4,150 - Updated: 4/2/2018 - Published: 7/31/2012 - Harry P., Hermione G., Severus S., Blaise Z.
by Youmightdietrying reviews
For Harry Potter, the Battle of Hogwarts came to an end with a shocking turn of events. By some unknown force of magic, Harry finds himself on the desert planet of Tatooine where he encounters an exiled Jedi Master. Under the tutelage of this new teacher, Harry will become something the Empire is not prepared for. He will fight a new evil.
Crossover - Star Wars & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 47,387 - Reviews: 633 - Favs: 3,211 - Follows: 4,275 - Updated: 12/16/2017 - Published: 9/13/2013 - Obi-Wan K., Harry P.
The Legacy Preservation Act
by James Spookie reviews
Last Heirs of noble bloodlines are forced to marry in order to prevent wizards from becoming extinct thanks to a new law passed by the Ministry in order to distract the public from listening to Dumbledore's warnings of Voldemort's return. Rated M, so once again if you are easily offended, just don't read it.
Harry Potter - Rated: M - English - Drama - Chapters: 30 - Words: 302,933 - Reviews: 3117 - Favs: 10,112 - Follows: 9,132 - Updated: 11/1/2017 - Published: 8/26/2014 - [Harry P., Daphne G.] [Neville L., Tracey D.] - Complete
I Still Haven't Found What I'm Looking For
by kathryn518 reviews
Ahsoka Tano left the Jedi Order, walking away after their betrayal. She did not consider the consequences of what her actions might bring, or the danger she might be in. A chance run in with a single irreverent, and possibly crazy, person in a bar changes the course of fate for an entire galaxy.
Crossover - Star Wars & Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 16 - Words: 344,480 - Reviews: 5860 - Favs: 16,456 - Follows: 17,952 - Updated: 9/17/2017 - Published: 4/2/2015 - Aayla S., Ahsoka T., Harry P.
by DragonsManticoresAndGiantsOhMy reviews
Massively AU. Halo/Mass Effect merged continuity. The galaxy, like much of the universe, is in a constant cycle of birth, destruction and rebirth. No guarantee our civilization is any different. We know others have come before us and perished at their height. What destroyed them? Could it destroy us as well? One human might be our savior, but he needs to grow up a bit first.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 38 - Words: 566,188 - Reviews: 99 - Favs: 167 - Follows: 185 - Updated: 5/2/2017 - Published: 7/14/2014 - Shepard
by Gonch Ni reviews
She spent her entire life studying technology, teaching people to develop and incorporate it, bending it to her will. After being recruited by Dr. Weir to join the Atlantis expedition, it turned out technology had a few things to teach her in return.
Stargate: Atlantis - Rated: T - English - Family/Adventure - Chapters: 7 - Words: 47,099 - Reviews: 33 - Favs: 21 - Follows: 33 - Updated: 10/28/2016 - Published: 12/30/2013 - Elizabeth W., Rodney M., John S., Teyla E.
Out of the Unknown
by axellon2008 reviews
Naruto discovers a crashed starship outside his village and his life is forever changed. Under the unorthodox tutelage of a Sith Lord's spirit, he will learn the technology and history of a larger galaxy that he, and no one else from his planet, ever knew existed.
Crossover - Star Wars & Naruto - Rated: M - English - Adventure/Sci-Fi - Chapters: 35 - Words: 636,110 - Reviews: 3036 - Favs: 4,345 - Follows: 3,916 - Updated: 5/21/2016 - Published: 1/12/2011 - Naruto U.
The Stargate Initiative
by Sciencefictionsquirrel reviews
AU. In 1945, Ernest Littlefield ventures through the Stargate and manages to convey that he is alive via a radio set. This, coupled with a more intact Heliopolis, result in the development of the Stargate Initiative, dedicated to using the stargate for the benefit of the USA and mankind.
Stargate: SG-1 - Rated: T - English - Chapters: 20 - Words: 89,733 - Reviews: 204 - Favs: 502 - Follows: 545 - Updated: 5/6/2016 - Published: 7/4/2013
Saruman of many Devices
by Saphroneth reviews
Alone of every power in Middle-Earth, Saruman innovates, notably gunpowder. But he lost. What if he had a little help? Actually a cross-over between LOTR and the General series by David Drake. Uses both book and movie elements.
Crossover - Lord of the Rings & Book X-overs - Rated: T - English - Sci-Fi/Fantasy - Chapters: 14 - Words: 130,580 - Reviews: 539 - Favs: 1,581 - Follows: 1,491 - Updated: 4/3/2016 - Published: 11/20/2011 - Saruman
Last Second Savior
by plums reviews
While leading the final charge against a retreating Dark Lord, Harry is thrown through a destabilized Demon Portal, landing on a strange world in a galaxy far far away. Eventual Harry / Multi
Crossover - Star Wars & Harry Potter - Rated: M - English - Adventure/Fantasy - Chapters: 10 - Words: 123,003 - Reviews: 2348 - Favs: 9,716 - Follows: 10,949 - Updated: 1/23/2016 - Published: 3/4/2013 - [Aayla S., Harry P., M. Brood, Shaak Ti]
The First Movement of the Odyssey
by Crazy-88 reviews
"You are the Fifth Race. Your role is clear. If there is any hope in preserving the future, it lies with you and your people" Because all it takes is one ship. Perhaps in the wrong place... But unquestionably, at the right time.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 206,461 - Reviews: 303 - Favs: 894 - Follows: 995 - Updated: 12/1/2015 - Published: 7/15/2013
Revenge of the Wizard
by Darth Marrs reviews
A Harry Potter cursed with immortality must not only survive the ravaging of Earth by monsters far more powerful than any humanity has encountered, but he must rise to save it, and in the process exact one wizard's revenge against the Galactic Empire.
Crossover - Star Wars & Harry Potter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 40 - Words: 172,419 - Reviews: 4335 - Favs: 7,690 - Follows: 5,834 - Updated: 10/31/2015 - Published: 12/23/2014 - Complete
Empress in the shadows reworked
by Seneth reviews
This is the story of a sane Goa'uld, her rise to power and the birth of her empire. Rework of Voider's fanfiction. AU
Stargate: SG-1 - Rated: M - English - Sci-Fi - Chapters: 13 - Words: 88,147 - Reviews: 341 - Favs: 735 - Follows: 820 - Updated: 10/29/2015 - Published: 4/19/2014 - OC
by Akitsufan reviews
Dr Potter is investigating a string of women rescued from a cult that have been dosed with something strange, something that doesn't belong to the muggle's or wizard kind. As he tracks down the source of the worrisome concoction he stumbles upon a millennium old secret, propelling him and his allies into the stars. Not a Harry single handily destroys the Goa'uld empire story.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 41,477 - Reviews: 229 - Favs: 857 - Follows: 1,293 - Updated: 10/23/2015 - Published: 11/25/2014 - Harry P., Hermione G.
by Surarrin reviews
Ahsoka feeling abandoned, betrayed and disillusioned with the Jedi Order, decided to part ways. She left to find meaning and purpose in her life. She never expected it to come in the form of an enigmatic green eyed young man who had more than a passing interest in the past. She never imagined that learning about the history of the galaxy could be so dangerous—or magical.
Crossover - Star Wars & Harry Potter - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 42,522 - Reviews: 551 - Favs: 3,998 - Follows: 4,963 - Updated: 8/27/2015 - Published: 7/31/2015 - Ahsoka T., Harry P.
Lost Magic: First Contact
by MightyFish reviews
A man is left trapped in time, while his world dies around him. Now awakened in the distant future, he leaves the planet of his birth and embarks on a journey to find that which was lost. But the new frontier holds many dangers, and the human race is about to face its first great challenge. A HP/ME crossover. Slow pace, rated M for safety, my profile has more details.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 10 - Words: 162,448 - Reviews: 715 - Favs: 2,470 - Follows: 3,068 - Updated: 7/25/2015 - Published: 2/4/2015 - Harry P.
by TrueStarGoddess reviews
"Elizabeth, this is D," Jack looked between Elizabeth and the young woman who had straightened in her chair, schooling her features into neutrality, "I'll put this bluntly. She was ordered to kill you and me before the Daedalus leaves tomorrow afternoon." Part One of the Angel Series.
Stargate: Atlantis - Rated: T - English - Sci-Fi/Friendship - Chapters: 70 - Words: 194,532 - Reviews: 315 - Favs: 219 - Follows: 155 - Updated: 6/22/2015 - Published: 7/28/2014 - Elizabeth W., Rodney M., John S., OC - Complete
Mass Effect: Synthesis
by Jade Tatsu reviews
"To the Sol Alliance and all of Humanity, greetings. I am Harbinger and I have traveled across the galaxy to meet you." Shepard wasn't the first to reach the Catalyst, eons ago, someone else did and they chose synthesis, embedding the desire in the Reapers. They've searched for organics to merge with ever since and now they've found them. AU, First Contact, Humans / Reapers
Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 39 - Words: 203,198 - Reviews: 1724 - Favs: 2,531 - Follows: 1,772 - Updated: 4/18/2015 - Published: 11/5/2014 - J. Garson, Harbinger, Garrus V., Saren A. - Complete
Stargate: New Frontier - The Reboot
by andrewjameswilliams reviews
AU Stargate. What could have happened if the stargate had never been discovered. How would things be different for Humanity and the Goa'uld when they finally meet.
Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 2 - Words: 11,632 - Reviews: 69 - Favs: 189 - Follows: 257 - Updated: 1/24/2015 - Published: 2/7/2014
A Stranger on the Frontier
by keiranhalcyon2010 reviews
Keiran Swan was going to die, but rescued from death's clutches by our favorite single letter ROB. Now in another universe, burdened with the knowledge of what's to come, he must walk a tight rope of temptation - and truly face the dilemma of a certain famous Vulcan proverb. (SI)
StarTrek: Deep Space Nine - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 55,344 - Reviews: 217 - Favs: 499 - Follows: 467 - Updated: 10/21/2014 - Published: 3/25/2013 - Jadzia D., B. Sisko
by prometheus55 reviews
It's said that a single decision can alter the path of millions and the shape the galaxy. Most think those choices are epic struggles between good and evil. No one could have ever imagined that such a decision would have to do with the negligent placement of a simple wooden crate. Forty-seven years later the consequences of that decision have changed course of the entire galaxy.
Stargate: SG-1 - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 51,920 - Reviews: 186 - Favs: 469 - Follows: 561 - Updated: 10/1/2014 - Published: 8/23/2013 - S. Carter, D. Jackson, Teal'c
The Surprising Journey of Cassie Morgan
by BookwormInFrance reviews
A wise man once said death is but the next great adventure. Cassie never thought he'd meant it quite so literally. No romance.
Crossover - Harry Potter & Hobbit - Rated: T - English - Adventure/Fantasy - Chapters: 23 - Words: 99,418 - Reviews: 183 - Favs: 186 - Follows: 233 - Updated: 7/17/2014 - Published: 3/8/2013 - OC
Si Vis Pacem, Para Bellum
by In Defilade reviews
AU. Abducted by Loki, rescued by Thor, Harry grows up fast in a much wider universe than he ever imagined existed. Trained extensively by the Asgard, he is now ready to set his own course in life. The Goa'uld need to be dealt with, and he has questions concerning his own past and powers - the answers to which will only be found on Earth, at Hogwarts ... whatever the hell that is.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 52,311 - Reviews: 643 - Favs: 1,997 - Follows: 2,685 - Updated: 4/7/2014 - Published: 4/28/2013 - S. Carter, Harry P., Hermione G.
Per Ardua Ad Astra
by In Defilade reviews
AU Harry pays a high price for booting Voldemort out of his mind at the end of OotP - he is stripped of his magic, but gains something ... other. He starts a new life in the non-magical world, and adapts his skills to join the RAF and later 'The Regiment'. He is assigned to the Atlantis Expedition and, through overcoming adversity, will find a new home and family amongst the stars.
Crossover - Harry Potter & Stargate: Atlantis - Rated: M - English - Sci-Fi/Romance - Chapters: 12 - Words: 127,209 - Reviews: 809 - Favs: 2,506 - Follows: 2,983 - Updated: 3/31/2014 - Published: 12/8/2012 - [Harry P., Teyla E.] Hermione G., John S.
The Lord of Revenge
by Primordial Soul reviews
The Light and the Dark have fought for thousands of years, each possessing their own champions. But now, both will tread in fear of one, displaced from his time, who is the Master of both Light and Dark. One who wants Revenge. DS Ending Male Revan, time travel.
Crossover - Star Wars & Star Wars - Rated: T - English - Adventure - Chapters: 11 - Words: 66,752 - Reviews: 410 - Favs: 931 - Follows: 997 - Updated: 3/27/2014 - Published: 8/2/2012 - Revan
by Heather Sinclair reviews
It wasn't the bright and shiny Jewel of the Galaxy you've all seen on the HoloNet. Harry's story started in the Underworld, a kilometer below the upper levels of Coruscant, where you never walk the streets alone, especially if you don't have a blaster hanging by your side. He left for a little while, but now it's called him back, whether he realizes it or not.
Crossover - Star Wars & Harry Potter - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 45,270 - Reviews: 447 - Favs: 2,524 - Follows: 2,907 - Updated: 3/8/2014 - Published: 1/12/2014 - A. Ventress, Harry P.
Harry Potter and the Next Great Adventure
by AmateurFanfic reviews
The war is over, and the sheep of the wizarding world have once again begun to turn their backs on him. In hopes of avoiding the hostility of the public and the greed of the Ministry, Harry embarks on a journey that will take him to a new life. Repost ch
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Adventure/Sci-Fi - Chapters: 14 - Words: 121,781 - Reviews: 1230 - Favs: 3,435 - Follows: 3,903 - Updated: 5/13/2013 - Published: 9/9/2009 - S. Carter, Harry P.
by prometheus55 reviews
After the battle with the Collectors, the Normandy tries to return to the Terminus systems. Unfortunately things don't go as planned and now the remnants of the crew must find a way home. However intentions and outcomes are rarely similar for Shepard. -ON HIATUS.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 128,713 - Reviews: 430 - Favs: 857 - Follows: 907 - Updated: 10/23/2011 - Published: 2/19/2010 - J. Garson
Star Trek: Divergence
by keiranhalcyon2010 reviews
In the 22nd Century, after a year of exploration in deep space Enterprise is damaged, near adrift. Their distress call is answered by those who would bring about a new era for Earth and the Galaxy.
Crossover - Stargate: SG-1 & StarTrek: Enterprise - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 69,764 - Reviews: 233 - Favs: 793 - Follows: 854 - Updated: 12/29/2010 - Published: 10/18/2009 - S. Carter
by Turrasta reviews
AU SG1/Atlantis/BSG-2003/Halo/B5 X-Over . In the year 2187, Earth has its first encounter with the Goa'uld, which sparks the beginning of a galaxy spanning war. Some violence, swearing, etc. Over 40 thousand hits!
Crossover - TV X-overs & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 92,371 - Reviews: 172 - Favs: 304 - Follows: 310 - Updated: 10/27/2009 - Published: 9/25/2008
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Shaking the Stars reviews
Harry find's an alien device and unleashes a power never seen or heard before. Slytherin! Powerful! Godlike! Harry
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Chapters: 1 - Words: 2,537 - Reviews: 27 - Favs: 155 - Follows: 230 - Published: 6/29/2014
Here They Come reviews
Rodney finds a 'message' for him left by Elisabeth which changed the future of the Pegasus galaxy.
Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,469 - Reviews: 4 - Favs: 9 - Follows: 12 - Published: 3/10/2012 - John S., Rodney M.
StarGate: Chronicles Of The Machines reviews
If Replicarter is some what like Colonel Carter, then wouldn't she be careful and has back up plans? In this A/U Replicators will use as much technologies as possible.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 14,139 - Reviews: 11 - Favs: 39 - Follows: 44 - Updated: 9/10/2011 - Published: 6/24/2011