122 A Metal Guardian » by JawsOnYou67 The Universal Century, only a few short years ago humanity nearly eradicated itself to the tune of a madman, now it spreads, free of most of its old hatred. Yet the galaxy won't let them rest. Terminal prepares the twin Queens as best it can. (Gundam x Mass Effect)
Gundam UC & Mass Effect, T, English, Sci-Fi & Humor, chapters: 20, words: 100k+, favs: 320, follows: 403, updated: 3/22 published: 8/18/2020, Amuro R., Char A., Tali'Zorah, Admiral Hackett
221 The Expelled Jedi (continuation) » by Bigtrunk Expelled by the Jedi Order, Naruto now finds himself alone. Now he searchers the Galaxy for his purpose. find out, as the expelled Jedi finds his purpose, will he lead the Galaxy into a new era of peace? Or will he spend his life as an unknown face in the vast Galaxy?
Naruto & Star Wars: The Clone Wars, M, English, Sci-Fi & Adventure, chapters: 17, words: 60k+, favs: 845, follows: 980, updated: 3/13 published: 12/6/2021, Naruto U., Ahsoka T., Bo-Katan Kryze
398 Sith Effect Episode I: First Contact » by Metagray The ruins of Mars belonged not to the protheans but to humanity's ancestors, the Sith Empire. How will the Citadel react to a race that not only doesn't use mass effect technology, but is an anathema to their ideals. When the turians find the Sith, they face a war unlike any this galaxy has seen. The First Contact War has begun. Peace is a lie, there is only passion.
Star Wars & Mass Effect, T, English, Sci-Fi & Adventure, chapters: 12, words: 87k+, favs: 990, follows: 1k+, updated: 3/8 published: 12/3/2022, D. Anderson, Admiral Hackett, Rael'Zorah, OC
1k+ Dust and Echoes » by trestwho After a successful mission, a UNSC fleet makes a random slipspace jump only to come across an uncharted system containing a sliver of humanity, one with seemingly no connection to Earth and whose natural abilities defy reason. In a galaxy full of terrifying dangers, the UNSC and Remnant must work together to defend all they know from annihilation.
Halo & RWBY, M, English, Sci-Fi & Adventure, chapters: 26, words: 309k+, favs: 1k+, follows: 1k+, updated: 2/20 published: 1/12/2020, Master Chief/John-117, Arbiter, Team RWBY, Team JNPR
21Nier Automata: Pensées » by Bain of Bards The local resistance has found a real human, but YoRHa is back and wants him to clone more humans! Is this new YoRHa trustworthy? Elsewhere, a group of androids and machines have set up a strange philosophical society, and a mysterious village is out for revenge. A romantic and philosophical sequel to Nier Automata set in a real-life location.
Nier, T, English, Adventure & Romance, chapters: 13, words: 52k+, favs: 46, follows: 65, updated: 2/5 published: 1/15/2022, Popola, 2B, 9S, YoRHa Commander
210Toxic Temptations » by Sewrtyuiop After the Kamino Incident, all U.A. students are forced into the new dorms on campus. As Izuku is packing up his room to leave, he gets an unexpected visitor. One that sends his life spiraling out of control.
My Hero Academia/僕のヒーローアカデミア, M, English, Drama & Romance, chapters: 20, words: 54k+, favs: 850, follows: 1k+, updated: 1/14 published: 9/9/2019, [Izuku M., Himiko Toga]
26 Data of REV-0 » by Altega SKYNET perfected the formula to travel back into the past and rewrite history. Logically, LEGION would come to this same conclusion as its predecessor. Through various trials, the REV-9 made it back to its target. But what of the other 8?
Terminator & Dragon Prince, T, English, Sci-Fi & Fantasy, chapters: 9, words: 16k+, favs: 50, follows: 55, updated: 1/13 published: 5/30/2020, OC, Callum, Rayla, Runaan
70 United Earths Empire: The Beginning of a New Age » by Destarien What if three Universes once separate come together. three different humanities with three different paths of technology merge into one galaxy. Citadel space will never be the same because the Schahl Empire and UNSC are here. Two Civilizations, one at war and one ready for war.
Halo & Mass Effect, T, English, Fantasy & Sci-Fi, chapters: 8, words: 21k+, favs: 206, follows: 271, updated: 1/5 published: 5/29/2022, J. Keyes, J. Cutter, SPARTAN-B312/Noble Six, Jerome-092
1k+ Vex » by Dragonspectre01 An average guy somehow finds himself in the DC Universe. By some sort of miracle, he didn't go mad and ended up planning an escape. He nearly succeeded. Perhaps he succeeded a little too much. The DC universe lost a potential hero but that doesn't mean he can't be one in another place. The only problem is that the line between friend and foe is truly blurred here.
Avengers & DC Superheroes, M, English, Fantasy & Adventure, chapters: 36, words: 102k+, favs: 2k+, follows: 3k+, updated: 12/28/2022 published: 11/18/2020, OC, Agent Phil Coulson, Agent Maria Hill, Jane Foster
769 The Time Displaced Sith » by OfficerDonNZ Nathrrya, once known as Darth Avarice is awoken three and a half thousand years after being encased in carbonite now she must find her place in a very different galaxy.
Star Wars & Star Wars, T, English, Drama & Romance, chapters: 30, words: 128k+, favs: 1k+, follows: 2k+, updated: 12/25/2022 published: 7/3/2017, [Obi-Wan K., Sith W.] Anakin Skywalker, Qui-Gon J.
1k+Grimm's Evolution » by Chaos65 Dying due to some random entity's mistake wasn't how I wanted to finish my Monday. Receiving a new life together with the Gamer System might have placated me a bit. That was until I was dropped into the world of RWBY as a Grimm. Yep, I am screwed... Gamer Grimm OC.
RWBY, M, English, Adventure & Fantasy, chapters: 26, words: 134k+, favs: 5k+, follows: 6k+, updated: 12/23/2022 published: 5/29/2020, OC
111 The Last of the Brave » by SuspectNutria With recent reports of the Banished using a newly-discovered planet between the UEG's Inner and Outer Colonies as a base, UNSC HIGHCOM has dispatched one of its newly-commissioned ships, the Harvest, to eliminate the threat. But this world the crew wakes up to has a dark, uncertain future ahead. Will the UNSC stop the Banished from conquering Remnant? Or die defending humanity?
Halo & RWBY, M, English, Sci-Fi & Adventure, chapters: 15, words: 119k+, favs: 207, follows: 285, updated: 12/18/2022 published: 2/6/2021, OC, J. Ironwood, Winter S.
191 A few Titans Solves Many Issues, Including the Reapers » by vmoneywashere In a distant yet expansive corner of the galaxy, many races rose and fell without anyone noticing. Yet a collection survived their ordeals and now look outwards. They bring Ideals, Peace, Prosperity, all under the UNSA and its Custodianship. When the Quarian Migrant fleet encounters an Expedition fleet, the nomads find a new home and a new family. (more updates in the winters) HFY
Mass Effect & Stellaris, T, English, Sci-Fi & Family, chapters: 18, words: 74k+, favs: 647, follows: 907, updated: 11/10/2022 published: 11/16/2021, [Tali'Zorah, Shepard] Rael'Zorah, OC
2k+ The Hunter Amongst Villains » by i4md347h Wounded, lost, but growing, the lone wolf awakens in a land not his own of which more colorful and vibrant life thrives, but also young and weak. Similar to home, but so different, Garou must wander the lands and find his purpose in a world where heroes were frail and weak, where the pain of the powerless was ignored by the many. And he will change that world with wrath and fury.
One Punch Man/ワンパンマン & My Hero Academia/僕のヒーローアカデミア, T, English, Adventure & Fantasy, chapters: 26, words: 178k+, favs: 4k+, follows: 4k+, updated: 10/18/2022 published: 12/13/2018
1k+ The Men From Onyx » by kpmh2001 A UNSC frigate is sent into another dimension after a disaster with their slipspace drive. Now lost in unknown territory, they must attempt to befriend the population of a local planet of strange humans under constant siege from an army of monsters. Consider this a minor AU as there are some slight differences, but everything major is still in the same place.
Halo & RWBY, T, English, Drama & Sci-Fi, chapters: 89, words: 562k+, favs: 1k+, follows: 1k+, updated: 10/17/2022 published: 1/13/2019, Ruby R., Ozpin, J. Ironwood, Winter S.
533 Mass Effect: Galaxy at war » by palik A Citadel Exploration fleet filled with people the council didnt want around discovers something that will change the face of Citadel Space forever. The council will experience a crash course in the fight for survival (abandoned)
Halo & Mass Effect, M, English, Sci-Fi, chapters: 29, words: 84k+, favs: 1k+, follows: 1k+, updated: 10/5/2022 published: 6/18/2020
874 Sea of Souls » by Black' Victor Cachat The Straw Hats failed and died, somehow passing over to another universe where they became 'Hollows.' Quickly bored of the endless wastes of Hueco Mundo, they try and figure out what to do next, much to the detriment of the peace and sanity of Aizen, Urahara, Soul Society, and the rest of the worlds.
One Piece & Bleach, T, English, Adventure & Humor, chapters: 13, words: 120k+, favs: 3k+, follows: 3k+, updated: 9/23/2022 published: 8/23/2018, Strawhat Pirates, Ichigo K., S. Aizen
8k+ The Vasto of White » by Parcasious One's fate is not decided by chance, but by choice. A hero will rise from the desolate sands of Hueco Mundo.
Bleach & Fate/stay night, T, English, chapters: 83, words: 410k+, favs: 10k+, follows: 11k+, updated: 9/11/2022 published: 10/31/2015, Ichigo K., Shirō E.
209 Conflicted Galaxies » by FR0ST16 When a fully armed UNSC Infinity is transported to another galaxy by a strange spatial anomaly, Lasky and his crew are forced into the middle of a galactic Civil War, but soon realize they weren't the only ones affected by the very same anomaly that brought them there. Their struggle eventually leads to the liberation of a planet and full out intergalactic warfare.
Halo & Star Wars Rebels, T, English, Sci-Fi & Adventure, chapters: 23, words: 84k+, favs: 398, follows: 408, updated: 8/21/2022 published: 12/27/2017, [Ezra B., Sabine W.] Master Chief/John-117, T. Lasky
324 HALO Mass convergence » by SapphireDawn11709 Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Halo & Mass Effect, M, English, Sci-Fi, chapters: 24, words: 82k+, favs: 753, follows: 937, updated: 7/4/2022 published: 9/18/2016, Master Chief/John-117, Cortana, J. Garson, Tali'Zorah