2k+ Assassin's Creed: Transcendence » Kronos amasses enough power early on to send an infant Percy back in time. Finding this development unsuitable, the Fates interfere, and only the soul of Perseus is sent back, while his body remains in the present occupied by a fake soul. Now, what is Percy doing in the past as he works his way back to the present? Eradicating the Templar Order, of course.
Percy Jackson and the Olympians & Assassin's Creed, M, English, Adventure & Spiritual, chapters: 84, words: 479k+, favs: 2k+, follows: 2k+, updated: 11/28 published: 3/3/2017
48 Remnant of a Backup Plan » When he was six, he was brought to the future to save Summer Rose as a test of his powers. Now he's come back to the future, 3000 years later, to see what Remnant of his old time remains. He is not impressed.
Percy Jackson and the Olympians & RWBY, M, English, Adventure & Family, chapters: 5, words: 32k+, favs: 94, follows: 118, updated: 11/16 published: 8/15, Percy J., Ruby R.
46 Dragon Princess of the Dawn » After Miquella and Melania are born afflicted, Marika and Radagon try for a third child, and they beget Marina, the youngest demigod. Her life is a happy one, filled with love and family, but that is upended one day when she falls into another world where she is reborn as the daughter of Poseidon. She will return home, however, but the only thing that awaits her there is pain...
Percy Jackson and the Olympians & Elden Ring, M, English, Tragedy & Adventure, chapters: 6, words: 35k+, favs: 111, follows: 127, updated: 11/8 published: 8/15, Percy J., Queen Marika the Eternal
80The Promised Year » This is the year that he promised he would spend with his big sister.
Percy Jackson and the Olympians, M, English, Family & Tragedy, chapters: 10, words: 63k+, favs: 61, follows: 67, updated: 7/19 published: 10/24/2021, Annabeth C., Percy J., OC
686 Roanapur's Sea Devil » A drunken Gabe just murdered Sally. An enraged and terrified Percy just murdered Gabe. On the run, the boy learns that world is not a nice place, and you have to be cold to survive. However, a foul-mouthed gunslinger, a well-rounded black man, and a chill computer nerd may just be the best family the demigod could ask for.
Percy Jackson and the Olympians & Black Lagoon, M, English, Adventure & Humor, chapters: 29, words: 143k+, favs: 975, follows: 967, updated: 6/14 published: 12/7/2017, Percy J., Revy, Dutch, Benny
202 Voidwalker » Sally had an interesting life. Beloved daughter, then orphan, then witch, then vagabond tasked by Delilah Copperspoon to destroy the Kaldwin family. Bereft of her powers, Sally's plan is to create the ultimate weapon. What she didn't expect was to find love in a man from another world.
Percy Jackson and the Olympians & Dishonored, M, English, Supernatural & Adventure, chapters: 15, words: 111k+, favs: 268, follows: 278, updated: 6/7 published: 6/13/2021, Percy J., Sally J., Delilah C.
117 Piper's Untold Story » After California, Piper's one and only hope was for a better future with her dad. Instead, he's back to being a workaholic, never at home, never around, always neglecting her. Take that huge blow, pair it up with nightmares about Jason, an identity crisis, and more, and you have Piper's miserable life in Tahlequah. But a storm is brewing, and Piper's right in the middle of it.
Percy Jackson and the Olympians, M, English, Family & Spiritual, chapters: 25, words: 215k+, favs: 31, follows: 32, updated: 5/14 published: 9/9/2022, Piper M., Tristan M.
10 Email Opt-In A heads-up post about a new feature FFN is using.
Percy Jackson and the Olympians, K, English, words: 280, favs: 5, follows: 3, 12/20/2022
112 Good News » I've got good news.
Percy Jackson and the Olympians, K, English, chapters: 10, words: 1k+, favs: 23, follows: 22, updated: 8/21/2022 published: 8/25/2020
22 The Chaos War--OLD VERSION » Putting this back online because some people have requested it. The original Chaos War, with nothing changed, in all its gilded glory! Revamp/updated/better version coming soon...whenever I finally finish Sea Devil and AC: T, that way my first seven are all ready to rumble with their stories completed. Enjoy!
Percy Jackson and the Olympians, M, English, Adventure, chapters: 8, words: 84k+, favs: 22, follows: 23, updated: 6/8/2022 published: 5/22/2022, Percy J., Chaos
336 Backup Plan: Armageddon » The final chapter of the saga begins...
Naruto & Percy Jackson and the Olympians, M, English, Angst & Tragedy, chapters: 12, words: 114k+, favs: 238, follows: 202, updated: 6/8/2022 published: 12/21/2019, Naruko U., Percy J., OC
21Birthday Present Look inside for a surprise.
Percy Jackson and the Olympians, K, English, Mystery, words: 131, favs: 11, follows: 4, updated: 6/8/2022 published: 9/7/2018
1k+ Backup Plan: Blood War » The fateful day approaches. The twins' sixteenth birthday comes quickly. Shin'en returns at full power to do battle against Kronos and his army, and in the violent aftermath, the secrets of the Blood War are revealed...
Naruto & Percy Jackson and the Olympians, M, English, Horror & Angst, chapters: 54, words: 263k+, favs: 455, follows: 396, updated: 6/8/2022 published: 6/5/2018, Naruko U., Percy J., OC
1k+ Son of Jashin » Percy Jackson is an unusual demigod. Mostly because he is neither Greek, Roman, Norse, or Egyptian. He's Shinto, and when the Titans try forcing him into their service, he goes into hiding, but then he's found by a bunch of kids in orange that turn his entire life into one big pile of shit.
Percy Jackson and the Olympians, M, English, Horror & Adventure, chapters: 34, words: 150k+, favs: 1k+, follows: 1k+, updated: 6/8/2022 published: 10/6/2016, Percy J.
1k+ Green-Eyed Ghoul » Sally Jackson is a Ghoul. Poseidon is a god. That makes their son one powerful SOB. Zeus' Master Bolt suddenly grows legs and walks off, and now a bunch of girls in silver are asking Anteiku where Perseus Jackson is...
Percy Jackson and the Olympians & Tokyo Ghoul/東京喰種トーキョーグール, M, English, Family & Fantasy, chapters: 42, words: 203k+, favs: 1k+, follows: 1k+, updated: 6/8/2022 published: 7/28/2016, Percy J.
887 Leviathan » In a final act of revenge, Kronos hurls Percy through time and space. Bereft of his age, memories, and Achilles Curse, Percy becomes the Number 1 Claymore. But like all Claymores...he Awakens. Now the Giant War is coming and Hera is missing her champion. When the Olympians finally find him, though...he isn't exactly the same. Awakened!Percy, Godlike!Percy, Insane!Percy.
Percy Jackson and the Olympians & Claymore, M, English, Humor & Adventure, chapters: 31, words: 158k+, favs: 1k+, follows: 1k+, updated: 6/8/2022 published: 3/13/2016
1k+ Xenomorphic » Captured at birth to undergo intense experimentation because of his unique genetic-code, Subject 3's life has been exceedingly linear. But when he is chosen to be spliced with the DNA of a creature considered to be the 'perfect organism', his life takes a drastic...transformation. It also doesn't help he is the son of a god. Female Percy in chapter two. Flames will be ignored.
Aliens/Predator & Percy Jackson and the Olympians, M, English, Sci-Fi & Horror, chapters: 44, words: 229k+, favs: 1k+, follows: 1k+, updated: 6/8/2022 published: 12/23/2015, Alien/Xenomorph, Percy J., Artemis
1k+ Backup Plan » Twins born of a broken oath, one to lead the life of a hero, the other to lead the life of a murderer. Champion of Susanoo and son of Poseidon, the younger brother's tale is one of sadness, and tragedy...and of vengeance, and blood.
Naruto & Percy Jackson and the Olympians, M, English, Adventure & Tragedy, chapters: 84, words: 430k+, favs: 1k+, follows: 1k+, updated: 6/8/2022 published: 9/9/2015, Naruko U., Percy J., OC