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Avalon, Secret of the Stars by donniedarko81 reviews
A hidden history revealed and the dawning of a new era or the end of another. Rating is K at the moment subject to change.
Crossover - Stargate: SG-1 & Harry Potter - Rated: K - English - Sci-Fi/Adventure - Chapters: 7 - Words: 41,571 - Reviews: 68 - Favs: 213 - Follows: 303 - Updated: 15h - Published: 4/27/2016
An Extraordinary Journey by fmfan1980 reviews
Formerly titled "An Extraordinary Meeting", Willow from Sunnydale arrives at the SGC under extraordinary circumstances and goes on amazing adventures with the gang from the SGC. BSG:2003 also included in later chapters. (05/06/2017: Chp 215 ending edited)
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi/Drama - Chapters: 216 - Words: 1,488,219 - Reviews: 931 - Favs: 299 - Follows: 380 - Updated: 21h - Published: 1/26/2014 - [Faith L., Willow R.]
Odyssey: The Journey Home by fmfan1980 reviews
A story festering my head once I started watching DS9. As the Odyssey find her way into the hyperspace window when Orilla blows up, the crew of the Odyssey find themselves in the Star Trek universe. Now, the question becomes how do they get back home for their own war against the Ori. (Tags: Unending (SG1) and Valiant (DS9)). (Second chapter has been changed)
Crossover - StarTrek: Deep Space Nine & Stargate: SG-1 - Rated: K+ - English - Chapters: 8 - Words: 25,496 - Reviews: 98 - Favs: 184 - Follows: 261 - Updated: 21h - Published: 1/3
The Return by fmfan1980 reviews
This is an alternate future AU to my 'An Extraordinary Journey' story. Atlantis detects an attacking force of unknown vessels heading for Earth, and a ship is sent from Pegasus to help in the planet's defence. Is this just a one off encounter to protect the ancestral home of Humanity, or the prelude to an unexpected return of old enemies? (BSG 2003 and BtVS included)
Crossover - StarTrek: Other & Stargate: SG-1 - Rated: K+ - English - Chapters: 18 - Words: 122,063 - Reviews: 112 - Favs: 125 - Follows: 143 - Updated: 21h - Published: 10/6/2016
The Truth of Us by fmfan1980 reviews
The galaxy has become much more dangerous with the awakening of the Nocturna, an ancient race evil long thought destroyed by the Alterrans. One makes its way to Earth, and will reveal Joyce's secret. A secret that she's not even aware of. How will BUffy react to the secret and the existence of aliens? *Real Chap 03 uploaded*. All reviews are welcome.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Chapters: 8 - Words: 43,240 - Reviews: 17 - Favs: 34 - Follows: 57 - Updated: 21h - Published: 2/9 - Buffy S., Joyce S.
The Guardian and the Gate by Marcus S. Lazarus reviews
A seemingly simple mission to investigate potential strange new sources of power results in SG-1 encountering a world populated by the most remarkable creatures in existence
Crossover - Stargate: SG-1 & Pokémon - Rated: K+ - English - Drama/Sci-Fi - Chapters: 3 - Words: 5,933 - Reviews: 11 - Favs: 16 - Follows: 23 - Updated: 22h - Published: 5/14 - S. Carter, D. Jackson, Ash K./Satoshi, Misty/Kasumi
Gundam Seed: A New Path by readerofgoodfanfiction reviews
The Second Bloody Valentine's War is over when the Treaty of Aprillius was signed. In the midst of it all the Atlantic Federation forms a top secret military division called Stargate Command Deep within the heart of Cheyenne Mountain in Colorado. The Stargate opens a new path to the stars for humanity, filled with wonders and terror while finding friends and foes alike.
Crossover - Stargate: SG-1 & Gundam Seed - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 16 - Words: 74,299 - Reviews: 161 - Favs: 123 - Follows: 114 - Updated: 6/25 - Published: 7/14/2011
Family Ties by bymak reviews
What happens when your baby get stolen and ends up as the expert in Stargate, specially when you are not only an abnormal but Helen Magnus? (Nope, I'm not getting any better with summaries)
Crossover - Stargate: SG-1 & Sanctuary - Rated: K - English - Hurt/Comfort - Chapters: 27 - Words: 143,518 - Reviews: 49 - Favs: 35 - Follows: 74 - Updated: 6/24 - Published: 11/10/2016 - [J. O'Neill, S. Carter] Helen M., Will Z.
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: 2 - Words: 15,551 - Reviews: 107 - Favs: 216 - Follows: 273 - Updated: 6/23 - Published: 6/17 - S. Carter
Welcome to the Hellgate by Nadie2 reviews
While visiting her California family Sam discovers a natural wormhole, or hellmouth as the locals call it. The Scobbies and SG-1 work together to combat your regular everyday apocalypse. And Spike develops a taste for blood with naquada.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Fantasy - Chapters: 8 - Words: 16,666 - Reviews: 5 - Favs: 7 - Follows: 23 - Updated: 6/23 - Published: 5/10 - Complete
The Past Meets The Future- Season 1 by Bazzano03
After the mission to save Teal's son and mentor, Daniel Jackson's anxieties result in a new mission for him and Teal'c, when a sudden gravity shift yanks them both out of our galaxy and timeline and lands them aboard the Enterprise. The duo must live and master their new abilities while helping Wesley as their friends learn what life would have been like had they not met the duo.
Crossover - StarTrek: The Next Generation & Stargate: SG-1 - Rated: T - English - Sci-Fi/Friendship - Chapters: 1 - Words: 9,568 - Updated: 6/23 - Published: 6/15 - W. Riker, Wesley C., D. Jackson, Teal'c
The Rise of Darth Xander by Dhagon reviews
YAHF/Ship of the Line Challenge inspired. Xander goes as Darth Vader for Halloween. Changed by the events of that night, he decides to forge his own destiny. And as the rest of the galaxy will discover, sometimes evil is best fought by another kind of evil.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Adventure/Sci-Fi - Chapters: 8 - Words: 28,893 - Reviews: 86 - Favs: 150 - Follows: 222 - Updated: 6/23 - Published: 5/11
Return of the Strawberry by netherhunter75 reviews
Ichigo was just walking home with his Mom and Dad when they both die and he is left an orphan but never fear Love is here. No not that love, Love Aikawa. What will happen to Ichigo under the tutelage of the Visoreds. Secret pairing.
Crossover - Stargate: SG-1 & Bleach - Rated: T - English - Adventure/Humor - Chapters: 2 - Words: 2,068 - Reviews: 6 - Favs: 14 - Follows: 32 - Updated: 6/22 - Published: 6/9
Day of the Falcon by nomuse reviews
Lara Croft discovers the Stargate program. What could possibly go wrong? A real update this time, with more to come. Especially if you keep those reviews happening!
Crossover - Stargate: SG-1 & Tomb Raider - Rated: T - English - Adventure - Chapters: 25 - Words: 142,706 - Reviews: 59 - Favs: 125 - Follows: 216 - Updated: 6/21 - Published: 7/8/2014 - S. Carter, D. Jackson, Lara Croft
Sounds like Slaver by BovinePirate reviews
Sequel to Rhymes with Shmaliens. Join Xander as he stumbles his way through his new career.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 17,651 - Reviews: 19 - Favs: 46 - Follows: 68 - Updated: 6/21 - Published: 5/22 - Xander H., D. Jackson, J. O'Neill
The Last Ancient by Novus Maximus reviews
He is the last of a great race of beeings that once ruled this galaxy and many others. His Destiny is clear, he must begin the resurgence of the first race and save the Great Aliance.
Crossover - Stargate: SG-1 & Danny Phantom - Rated: T - English - Adventure/Mystery - Chapters: 9 - Words: 33,952 - Reviews: 25 - Favs: 53 - Follows: 67 - Updated: 6/21 - Published: 4/17
Celestial Empire (China Stargate) by nikkythegreat reviews
Starts with the SG Atlantis Episode Enemy at the Gates. After the battle with the Wraith Super-Hive, the PLAAF Starship Sun Tzu has a plan to save Earth and the Galaxy. A freakish accident strands them in 1862 instead. This is an AU for Stargate, where Imperial China runs a gate program.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi - Chapters: 21 - Words: 68,935 - Reviews: 134 - Favs: 114 - Follows: 147 - Updated: 6/20 - Published: 7/8/2016
Harry Potter - Alteran by Sashian reviews
The rebirth of an entire race and society is a tall order when this and other galaxies are not safe. What is Harry to do? What he does best, jump in feet first. Rating T for some language and mentions of nudity later on. Pairings HP/HG/LL/other
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 151,724 - Reviews: 975 - Favs: 1,681 - Follows: 2,263 - Updated: 6/20 - Published: 2/16 - Harry P., Hermione G., Luna L.
Jon the Guide by Maevenn reviews
To Guide or not to Guide, that is the question. Can Jon O'Neill make this kind of commitment? And just what the hell is he getting himself into? Buffy/Sentinel/Stargate x-over, sequel to Xander the Sentinel
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: K - English - Supernatural - Chapters: 13 - Words: 15,490 - Reviews: 9 - Favs: 48 - Follows: 70 - Updated: 6/20 - Published: 8/11/2012 - Xander H., Jonathan O.
Four Universes Intertwined by wmcc27 reviews
Voyager makes a discovery that will change the fate of four universes.
Crossover - StarTrek: Voyager & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 7,582 - Reviews: 2 - Favs: 14 - Follows: 24 - Published: 6/18
To change fate by fanfictionfanaticX reviews
Fate is a weird thing. By trying to stop it or change it, you discover that it has all already been written. Or has it? This is a Stargate and BSG 2003 crossover.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 15 - Words: 210,733 - Reviews: 165 - Favs: 171 - Follows: 242 - Updated: 6/18 - Published: 12/22/2016
Tales of the Anunnaki by VintageTorquoise reviews
Entries of the mysterious Orator regarding the beginning of time and the story of the Anunnaki - a race of Goa'uld that disappeared from history, yet left a mystic legacy. This is the beginning of a series of stories. Crossover universes include: Assassin's Creed, Stargate, Myst/Riven, and more.
Crossover - Assassin's Creed & Stargate: SG-1 - Rated: T - English - Fantasy/Sci-Fi - Chapters: 11 - Words: 24,324 - Reviews: 1 - Favs: 3 - Follows: 4 - Updated: 6/16 - Published: 9/8/2013 - Complete
Tau'ris Suprise by TheDreadCaptain reviews
What if in the Earth-Mimbari war a Tau'ri Colony and the Tau'ri Fifth Fleet is somehow transported to the Babylon 5 Universe and are discovered by the Mimbari. Multi-Crossover now.
Crossover - Babylon 5 & Stargate: SG-1 - Rated: T - English - Adventure/Sci-Fi - Chapters: 10 - Words: 11,494 - Reviews: 107 - Favs: 85 - Follows: 128 - Updated: 6/16 - Published: 2/8 - OC, OC
The New Tollan Council by TheDreadCaptain reviews
The Tollans never told the Tauri that 50 years ago they under went a Civil-War that caused almost 500 Million Tollans to leave for an unknown galaxy. Thoses Tollans fromed The New Tollan Council following many policies like the Old Council only that they arent as nearly as Isolationalistic.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 6,106 - Reviews: 22 - Favs: 60 - Follows: 82 - Updated: 6/15 - Published: 5/23
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: 9 - Words: 61,207 - Reviews: 72 - Favs: 135 - Follows: 203 - Updated: 6/15 - Published: 1/30 - H. Maybourne, OC, Master Chief/John-117, C. Halsey
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