Scryer

The Defensive Space Force Ship Requirement by tkepner

Harry Potter, and the rest of Dumbledore's Army in his fifth year, use the Room of Requirement to get themselves a spaceship! The problems of a tiny island on Earth don't seem so important, anymore. Wizards in Space! What could possibly go wrong with that? Eventually, this will be a crossover with Stargate SG-1.

Stargate: SG-1 - 2024-08-27 In-Progress - T - Fantasy/Sci-Fi - Gen. Hammond, Harry P., Hermione G., Lee J. - 349,840 words - 56 chapters - 2,765 reviews - 3,677 favorites - 4,553 follows

Stepping Into The Sky by Sage Ra

At the beginning of Harry Potter's seventh year, the Order of Phoenix tastes a crushing defeat and Harry is sealed and banished... never to be found, never to be awoken... until centuries later, he is found by the crew of the spaceship: Serenity.

Firefly - 2025-09-23 In-Progress - M - Adventure - Harry P., R. Tam - 130,752 words - 22 chapters - 164 reviews - 500 favorites - 783 follows

Shiver me Timbers! by wolfd890 Stale Result (Last seen: 2025-10-11)

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)

Star Wars - 2022-04-11 In-Progress - M - Adventure/Humor - Luke S., Leia O., Harry P. - 169,211 words - 18 chapters - 1,647 reviews - 6,126 favorites - 8,149 follows

The Battles Within by WaskeHD Stale Result (Last seen: 2025-10-11)

A story about an old man who needs to learn how to care again. A young warrior struggling with violence. A young woman who deals with her darker tendencies. A mature woman who wants to be a mother and a downtrodden woman who wants to save her people from oppression.

Star Wars - 2022-07-19 In-Progress - M - Family/Romance - Aayla S., Shaak Ti, Ahsoka T., Harry P. - 143,918 words - 6 chapters - 424 reviews - 3,230 favorites - 4,060 follows

Adas Reborn by Shahismael

Based on The Galactic War challenge by Belgrath on DZ2's forums. During the Battle at the Department of Mysteries, Harry Potter is sent to the Star Wars universe. Arriving two years before Attack of the Clones, this is Harry's story as he grows through the Clone Wars and his return home. An eventual H/Hr, it will develop after harry's return. Not sure which genres to call this one.

Star Wars: The Clone Wars - 2023-05-04 In-Progress - M - - Harry P., Hermione G., Count Dooku - 617,521 words - 43 chapters - 2,192 reviews - 5,510 favorites - 6,458 follows

Let's Try This Again by Flameraiser Stale Result (Last seen: 2025-10-11)

Harry Potter is done with life. He did everything and all he wanted was to pass on to the next great adventure. Sadly, rules get in the way of this and he must now find a new way to keep living. It's not all bad though. At least he gets another chance to live life his way and on his terms. Warning: Mentions of attempted suicide and other stuff to come.

Star Wars - 2021-09-25 In-Progress - M - Adventure - Harry P. - 178,176 words - 23 chapters - 1,681 reviews - 6,678 favorites - 8,148 follows

Last Second Savior by plums Stale Result (Last seen: 2025-10-11)

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

multi harem

Star Wars - 2016-01-23 In-Progress - M - Adventure/Fantasy - Aayla S., Harry P., M. Brood, Shaak Ti - 123,003 words - 10 chapters - 2,437 reviews - 10,742 favorites - 11,812 follows

Gradients by Lepton

Harry and friends unwittingly change the fate of the galaxy. An exploration of magic, technology, ascent and descent.

Stargate: SG-1 - 2024-10-15 In-Progress - T - Sci-Fi/Adventure - Harry P. - 54,578 words - 5 chapters - 167 reviews - 759 favorites - 1,182 follows

What's a Gungan? by mjimeyg Stale Result (Last seen: 2025-10-11)

A teenager falls from the sky but has no presence in The Force. He doesn't even know what he landed on. He certainly isn't anywhere near home anymore.

Star Wars - 2020-05-08 Complete - M - Humor/Adventure - Padmé Amidala, Harry P., Yoda, Sirius B. - 83,368 words - 16 chapters - 2,070 reviews - 8,263 favorites - 5,260 follows

Eye Of The Storm by DZ2

Losing Sirius hit Harry hard; so hard that he attempts to run away, but is stopped by a summons to his destiny: a summons from Gringotts and DARTH REVAN; now commanding the Force, can Harry get some answers? Dark Harmony

Star Wars - 2024-11-01 Complete - M - Romance/Family - Harry P., Hermione G., Revan - 121,424 words - 23 chapters - 443 reviews - 1,661 favorites - 1,093 follows

Into the Maelstrom by alexandertheII Stale Result (Last seen: 2025-10-11)

An interloper from Harry's home, the inherited responsibility for a group of Alderaanian refugees and the Outer Rim's usual scum and villainy are here for our heroes, scoundrels and Arden to contend with in this third installment of my The New World series and the sequel to Shadow of the Consortium.

Star Wars - 2024-09-08 In-Progress - M - Adventure/Sci-Fi - Harry P., Leia O., OC, Hermione G. - 52,911 words - 11 chapters - 144 reviews - 915 favorites - 1,369 follows

Madness Effect by ZenoNoKyuubi

It's the year 2185CE. Commander Jane Shepard is recruiting members to bring with her on a mission against the Collectors and the Reapers. Among the candidates is Dr. Harry Potter, the reclusive mad scientist who has been missing for twenty years. Who knows what he was doing during that time? Rated M to be sure.

Mass Effect - 2017-06-04 In-Progress - M - Adventure/Sci-Fi - Harry P., J. Garson - 81,420 words - 11 chapters - 1,514 reviews - 6,248 favorites - 7,198 follows

Ripples in the Force by OlorinTheMaiar Stale Result (Last seen: 2025-10-11)

Thousands of years ago, non-magical humans abandoned Earth. Left to their own devices, the magical inhabitants of Earth spread to the surrounding planets and star systems. Over the years, they isolated themselves from the galaxy. Jedi Knight Harry Potter, a ma'jaii from Earth, is sent to protect the Queen of Naboo as her planet is invaded. His presence causes ripples in the force.

Star Wars - 2020-09-15 In-Progress - T - Sci-Fi/Fantasy - Harry P., Padmé Amidala - 69,813 words - 10 chapters - 496 reviews - 3,533 favorites - 4,655 follows

The Three Fates of Darth Gladiolus by Kamil the Awesome

Part II: Victorious over her foes, three tasks lay before Darth Gladiolus: to finalize her hold over magical Britain, to prepare her world for their inevitable encounter with the Jedi and the Galactic Republic they serve, and to find a Sith apprentice to guard Earth during her inevitable journey into the galaxy. Fem/Sith!Harry. Cover art by jeida-chi on tumblr. Part I Completed.

Star Wars - 2025-06-11 In-Progress - T - Sci-Fi - Harry P., Salazar S. - 438,152 words - 57 chapters - 293 reviews - 827 favorites - 973 follows

For the Greater Good by AlwaysVictory

The galaxy is a vast and dangerous place, and secrets have a way of resurfacing at the worst of times. Hermione and Harry find themselves confronted with hard choices as they end up in the middle of conflicts that reveal some of Starfleet's darkest truths. Part 2 in the series. Not abandoned no matter how long it's been since the last update

Star Trek: 2009 - 2025-03-07 In-Progress - T - Fantasy/Sci-Fi - Hermione G., J. Kirk, Harry P., John Harrison/Khan - 64,031 words - 15 chapters - 260 reviews - 492 favorites - 795 follows

Gods Among Us by arturus

Fate is a funny thing. Harry Potter and his friends survived their trial by fire and defeated Voldemort. A year has passed and Hermione Granger is apprenticed as a Curse Breaker. When she discovers an ancient tomb she talks Harry into helping with the excavation. Now they are trapped and they'll need a miracle to survive. HP/BSG (now a bit of Stargate in the mix) Major edit 2020/21

Battlestar Galactica: 2003 - 2023-03-19 In-Progress - M - Sci-Fi/Adventure - Harry P., Hermione G. - 239,661 words - 26 chapters - 1,081 reviews - 2,469 favorites - 3,218 follows

The Rebirth of the Eternal Empire by spartanr981 Stale Result (Last seen: 2025-10-11)

Taken from Earth Harry must protect the Empire he has forged for himself amongst the stars as the Galaxy teeters on the brink of total war. Op Emperor WBWL Harry. Harry/Fleur ABANDONED

Star Wars - 2021-04-20 In-Progress - M - Romance/Sci-Fi - Harry P., Fleur D. - 61,735 words - 5 chapters - 343 reviews - 1,995 favorites - 2,583 follows

Waking into a Dream by stargatesg1fan1

An SI story where our main character wakes up as a young Harry Potter. Watch as our SI finds himself in a universe slightly different from canon Harry Potter and makes the changes he wants to make. Later also realizing Stargate exists in this universe he makes even more changes. Eventual-Powerful-Harry. Gary Stu. Lots of Smuttiness. Multi-Pairing. Pairing: HG/HP/Sam Carter

Stargate: SG-1 - 2024-04-17 Complete - M - Adventure/Romance - S. Carter, Harry P., Hermione G. - 58,145 words - 7 chapters - 162 reviews - 941 favorites - 1,005 follows

DLP 2.80

Into The Black by RhysThornbery Stale Result (Last seen: 2025-10-11)

An incredible discovery prompts Harry and Hermione to venture into the unknown. Hoping to discover new worlds and bring home a certain lost Godfather. However they get a lot more than they bargained for when they step into this brave new world. A Galactic scale war, aliens and betrayal lie beyond. Tentatively rate T, may be raised to M if necessary. On Hiatus.

Star Wars - 2018-09-03 In-Progress - T - Adventure/Sci-Fi - Aayla S., Harry P., Hermione G. - 123,304 words - 13 chapters - 1,422 reviews - 4,634 favorites - 6,114 follows

Origins by burnable

Sequel to Back to the Beginning. Harry finds out that one of their advanced systems have been experiencing strange interruptions and follows them back to a military compound, where the Stargate, an ancient feat of alien technology, allows mankind to reach out and explore different worlds and cultures. Still harem, but less focused on that.

harem

Stargate: SG-1 - 2020-10-12 Complete - M - Adventure/Sci-Fi - Harry P., Hermione G., Fleur D., Luna L. - 214,115 words - 13 chapters - 901 reviews - 4,093 favorites - 3,529 follows

Harry Potter and the Stargate by Sinyk

What if Remus was not... quite... as fast as he needed to be to catch Harry before he tried to get to Sirius in front of the Veil of Death. And what if the Veil was not what the magicals believed it to be? Oops! AU HP/LL Bash!AD/RW/GW (as my usual).

Stargate: SG-1 - 2018-11-24 Complete - M - Fantasy/Sci-Fi - Harry P., Luna L., Sirius B., Remus L. - 224,912 words - 24 chapters - 3,587 reviews - 6,831 favorites - 5,185 follows

DLP 4.19

The Unsuspecting side of the Force by Tsu Doh Nimh Stale Result (Last seen: 2025-10-11)

A companion fic to "The Havoc side of the Force". Extra scenes and different perspectives from that story.

Star Wars - 2018-04-21 In-Progress - T - Mystery/Adventure - Anakin Skywalker, Harry P. - 53,132 words - 13 chapters - 1,714 reviews - 4,863 favorites - 5,575 follows

Harry Potter: Force Adept by Methos Momomax Stale Result (Last seen: 2025-10-11)

Summary: During the summer after Harry Potter's second year, a timely letter from his mother appears before him on his birthday. Harry finds out that Lily Potter was never a blood sister of Petunia Dursley nee' Evans, but the long lost daughter of Grandmaster Ben Skywalker and Lady Vestara Khai. Harry's Fate and the Magical World will change forever.

harem femslash

Star Wars - 2020-08-11 In-Progress - T - Adventure/Fantasy - Harry P., Hermione G., Susan B., Daphne G. - 176,895 words - 26 chapters - 1,288 reviews - 4,832 favorites - 5,782 follows

EVoNet Forward by V. S. Alucard

The world was changing but mage couldn't see the need to change too. They forced Harry away in fear, banished from the magical world with his magic sealed away. He had a dream too big for the 'light' or the 'dark' wishing to bring magic to all who had a wish for something more. Though, his power was bound; he could see the way forward beyond his troubles.

Stargate: SG-1 - 2024-11-25 In-Progress - M - Sci-Fi/Fantasy - Harry P., Daphne G., Draco M., Astoria G. - 107,577 words - 28 chapters - 167 reviews - 1,072 favorites - 1,312 follows

The Force's Balance by Kassien Stale Result (Last seen: 2025-10-11)

MOD!Harry Potter travels through the veil to Kashyyyk in the Star Wars Galaxy 20 years before Clone Wars. Harry becomes the Force's Balance as he forges the third path between the Dark and the Light. Some Jedi & Sith bashing. Strong!Harry, Smart!Harry. Slow world building. No set pairings, but many relationships throughout. Rated M for mature themes and language as always.

Star Wars - 2021-09-13 In-Progress - M - - Harry P., Sirius B., Qui-Gon J., Yoda - 230,464 words - 24 chapters - 821 reviews - 3,732 favorites - 4,545 follows

Search: HP/Sci-Fi Mix, >50k