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Harry Potter: Lethal Injection by
Midgards Ormen reviews
An alteration in the course of the Life Foundation shuttle causes it to crash, not in Thailand, but in the United Kingdom. For young Harry Potter, this accident of fate leaves him with a brand new demon, but one he's more than happy to posses. Bonded with a mighty alien being, the Wizarding World will soon get an injection of pure Venom. Venom (2018)/Harry Potter crossover elements
Harry Potter - Rated: M - English - Adventure/Humor - Chapters: 5 - Words: 97,130 - Reviews: 58 - Favs: 273 - Follows: 389 - Updated: 8/24 - Published: 1/13 - Harry P., Luna L.
Effects of a Titan by
greeneman42 reviews
A small salvage ship comes across an interesting find while searching. Set before Halo 4 and before ME 2
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 28 - Words: 197,715 - Reviews: 946 - Favs: 1,501 - Follows: 1,974 - Updated: 8/21 - Published: 11/26/2013 - Master Chief/John-117, Cortana, Shepard (F)
It's not the size that matters by
Khalthar reviews
A Black Yautja Female, A Yautja Male, and a Female US Marine... All are traditional enemies. Now they must overcome seemingly impossible odds and work together and survive, only time will tell if they are successful.
Aliens/Predator - Rated: M - English - Hurt/Comfort/Friendship - Chapters: 22 - Words: 74,572 - Reviews: 105 - Favs: 129 - Follows: 142 - Updated: 8/5 - Published: 9/16/2012
Antebellum by
SavvyEnigma reviews
AU When Sam used the Allspark to kill Megatron, he was given a choice: change the past or save the future. He chose to change the past, at the loss of everything he knew on Earth, and saved thousands of lives by sacrificing his own to become Altor Prime.
Transformers - Rated: T - English - Family/Hurt/Comfort - Chapters: 32 - Words: 35,382 - Reviews: 1729 - Favs: 2,381 - Follows: 2,532 - Updated: 7/9 - Published: 6/9/2011 - Sam W.
The Spartan Effect by
Gatekeeper333 reviews
Everyone's favorite Spartan is looking for a new purpose, lucky for him, the Commander his happy to oblige. (5-23-19 Info: On Hiatus after Chapter 45. Will update with schedule after life is in order.)
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 45 - Words: 495,928 - Reviews: 1677 - Favs: 2,363 - Follows: 2,926 - Updated: 5/23 - Published: 3/27/2011 - Master Chief/John-117, Tali'Zorah, Miranda L., Shepard (M)
The Last Spartan by
DinoJake reviews
An AU fic in which the Halo and ME universes share the same galaxy. After a well deserved rest in Cryo-Sleep, Master Chief finally awakens...to a whole new galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 55 - Words: 489,686 - Reviews: 3913 - Favs: 3,817 - Follows: 3,847 - Updated: 12/31/2018 - Published: 5/2/2010 - Master Chief/John-117
Biomass Effect by
Beastrider9 reviews
All life on Earth had been consumed by Blacklight. With no Biomass to feed on, Blacklight had to evolve, adapt, and grow. Now a collective Council of Aliens discovers the existence of such a life form. How do the aliens see a form of life that is viral, how they deal with it, what are the consequences to the galaxy of such a race existing at all.
Crossover - Mass Effect & Prototype - Rated: M - English - Sci-Fi - Chapters: 59 - Words: 303,766 - Reviews: 2634 - Favs: 3,568 - Follows: 3,997 - Updated: 12/3/2018 - Published: 8/8/2014
When Destiny burns by
Masterdude21 reviews
After an UNSC fleet fell prey to an ancient Forerunner scheme, a lone Spartan is left stranded in a world that he doesn't understand. He gets himself inadvertently bonded to a dragon, marking him as a pawn in a new conflict. He must fight for his life and overcome his own nature to gain allies in a world where nothing makes sense. But war always catches on, burning all it touches.
Crossover - Halo & Inheritance Cycle - Rated: M - English - Sci-Fi/Fantasy - Chapters: 50 - Words: 584,148 - Reviews: 1291 - Favs: 802 - Follows: 860 - Updated: 9/11/2018 - Published: 4/16/2014 - OC, Eragon S., Arya
Aliens: Black Remnant by
Gundam-Knight-Chris reviews
A lone Colonial Marine sacrifices himself to take the Xenomorph Queen with him to the grave only to be sent to the world of Remnant. Now drafted into Beacon Academy as a Hunter, this walking arsenal must combat Grimm, terrorists, and girls. However, a black horizon is on its way to enshroud Remnant in darkness. Once a Marine, always a Marine. Oorah to Ashes!
Crossover - Aliens/Predator & RWBY - Rated: M - English - Adventure/Horror - Chapters: 4 - Words: 25,946 - Reviews: 59 - Favs: 121 - Follows: 151 - Updated: 9/10/2018 - Published: 12/10/2016 - Alien/Xenomorph, OC, Team RWBY, Team JNPR
Halo: A Galaxy Divided by
RevengeS197 reviews
When Halo fired it shook itself to pieces, the portal collapsed as Master Chief made it through the portal but what he didn't know is that when the portal was collapsing he was ripped into another Galaxy far, far away. a Star wars the Clone Wars Crossover. Master Chief is not going to be a Jedi to let all the readers know.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 62,176 - Reviews: 395 - Favs: 838 - Follows: 1,020 - Updated: 10/27/2017 - Published: 9/5/2014 - OC, Master Chief/John-117, Cortana
Genetic Revolution by
Burke23 reviews
A man (Patrick Manchester) who worked at Weyland Industries is assigned to create two xenomorph/human hybrids and mix their DNA with other animals. He discovers the dark secrets of the company and things spiral downward from there. There are up moments and down moments. Remember to review and leave suggestions if you, the readers, have any. Rated T for obvious reasons.
Aliens/Predator - Rated: T - English - Sci-Fi/Family - Chapters: 21 - Words: 32,197 - Reviews: 63 - Favs: 34 - Follows: 44 - Updated: 7/14/2017 - Published: 12/28/2014 - Complete
Connected I: New Beginning by
xMoonWhispers reviews
A young lady's life changes in a way she never dream of when tragedy strikes her town. Now she finds herself in a Yautja clan trying to prove she's worthy. She sure never expected to face drama, hunts, markings nor even love and mating. How will she deal with the Yautja culture? Would they ever see her as part of their clan? Yautja/Predator x Fem!OC (Will be Rated M later.)
Aliens/Predator - Rated: T - English - Chapters: 2 - Words: 6,209 - Reviews: 10 - Favs: 38 - Follows: 46 - Updated: 1/1/2017 - Published: 7/16/2015 - Human, Predator/Yautja, Alien/Xenomorph, OC
Souls of Steel: Resurrection by
Theonewhodidnotdoit reviews
The Dawn never found Requiem. Cortana is forced to make a great sacrifice, leaving the Master Chief alone in space. Hundreds of years later, the wreck is discovered on the fringes of inhabited space by bounty huntress Samus Aran. What she finds inside is neither man nor machine, but either way, it is broken... and yet it is strong. Part 1 in a trilogy. Complete, awaiting Part 2.
Crossover - Metroid & Halo - Rated: T - English - Sci-Fi/Friendship - Chapters: 13 - Words: 52,468 - Reviews: 304 - Favs: 537 - Follows: 584 - Updated: 9/13/2015 - Published: 4/20/2014 - Samus A., Adam M., Master Chief/John-117 - Complete
(Re-Write) The Star and the Spartan by
Composer777 reviews
There's an old saying amongst the UNSC: "Spartans never die. If they disappear, they're just missing in action!" Everyone on planet earth knows this is a lie, but find comfort in it regardless. Content to believe that immortal guardians are watching over them. And in time, a rag-tag group of beings will see that man is capable of things they could never have imagined possible.
Crossover - Lord of the Rings & Halo - Rated: T - English - Fantasy/Adventure - Chapters: 6 - Words: 22,699 - Reviews: 37 - Favs: 121 - Follows: 158 - Updated: 9/3/2015 - Published: 6/6/2015 - Aragorn, Boromir, Master Chief/John-117
Adapt and Overcome by
ReaperKiller reviews
It wasn't until she had spilled the blood did Liara T'Soni realize what she had unleashed upon the galaxy. For better or for worse, Zeus had returned./ Some chapters may be later rated M for gore.
Crossover - Mass Effect & Prototype - Rated: T - English - Sci-Fi/Suspense - Chapters: 21 - Words: 55,426 - Reviews: 393 - Favs: 938 - Follows: 1,138 - Updated: 3/7/2015 - Published: 5/25/2014 - Liara T'Soni, Alex M./Zeus
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Black Glint: Reaper reviews
A New Machine out in a new world, Seeds need to be sown and Crops reaped. What will the world think when a new Reaper falls upon them? This is a more reader based story, so vote on the poll and let me know what you think I should crossover with
Armored Core - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 541 - Reviews: 1 - Published: 3/3/2018
Emperor's of the Stars: Induction reviews
Through the stars, we travel. Through the veil, we fight. Heed our warning, when we come for the mantle. Our blades thirst for blood, rifles bark to be unloaded and staffs wish to break bones. For we are gun, for we are blade, for we have come with salvation for all, willing and not. WE ARE TENNO and none shall stand in the way of the Emperor's of the Stars.
Crossover - Mass Effect & Warframe - Rated: M - English - Humor/Sci-Fi - Chapters: 3 - Words: 2,393 - Reviews: 16 - Favs: 54 - Follows: 73 - Updated: 12/23/2017 - Published: 5/25/2017 - Shepard (F), Tali'Zorah, OC
Emperors of the Stars reviews
When chased out their home, a untested Void Drive are their only solution. Shepard need a miracle when they ordered the fleet to help the council during the first attack on the Citadel, so what happens when a race of honour bound space ninjas come to help even if unintentionally...
Crossover - Mass Effect & Warframe - Rated: M - English - Sci-Fi/Adventure - Chapters: 6 - Words: 3,822 - Reviews: 21 - Favs: 64 - Follows: 79 - Updated: 5/25/2017 - Published: 3/15/2016 - [Tali'Zorah, OC] - Complete
Overlord: Rise of a Hybrid reviews
When a threat so powerful shows up, it threatens the three races, what will happen when the gods choose a hero and will all this hero be just a horror to look at. Follow the adventures of Ruari as he prepares for a intergalactic war unlike any other. First Fan Fic hope you enjoy. Rated M for gory and maybe smut scenes in the later stories. Sorry guys temporarily putting on hiatus
Aliens/Predator - Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 3,545 - Reviews: 6 - Favs: 11 - Follows: 11 - Updated: 5/23/2017 - Published: 7/20/2015 - Predator/Yautja, Alien/Xenomorph, OC - Complete
Naruto: Friend Of Titans reviews
Naruto was banished for successfully retrieving Sasuke, so Kurama told him of warriors that waged war across the stars. But what happens when three wake up... Planetary Annihilation:Titans crossover, game was made by the same guys who made Supcom 1, 2 & 3 M for safety
Crossover - Naruto & Supreme Commander - Rated: M - English - Sci-Fi/Friendship - Chapters: 2 - Words: 950 - Reviews: 4 - Favs: 18 - Follows: 36 - Updated: 5/23/2017 - Published: 2/12/2016 - Complete
Tenno Father: rise of the Uzumaki reviews
Once a great age of the empire of Tenno came to an end one clan went on a mass exodus to different dimensions. The leader of this clan,The Messenger goes out on his own and isn't found for over a thousand years. But what if on the night of celebrating the defeat of the Kyuubi, young Naruto discovers him and asks to be adopted, how will this change the Shinobi world. M rated incase
Crossover - Naruto & Warframe - Rated: M - English - Sci-Fi/Family - Chapters: 5 - Words: 3,797 - Reviews: 14 - Favs: 52 - Follows: 70 - Updated: 5/23/2017 - Published: 1/26/2016 - [Anko M., OC] [Naruto U., Hinata H.] - Complete