17 Magitek Keyblade » by Scififan33 Cor's mission to the Magitek facility failed. Luckily someone else was there that day and stepped in to save a certain toddler. Once he saw the child floating in the tank, Eraqus couldn't just leave him there, World Order or not. Terra and Aqua found themselves big siblings before Ventus ever joined them.
Kingdom Hearts & Final Fantasy XV, T, English, Fantasy & Family, chapters: 6, words: 23k+, favs: 39, follows: 39, updated: 5/13 published: 3/30, Aqua, Terra, Ventus/Ven, Prompto Argentum
61 FINAL FANTASY XV: Journey in Remnant » by DevilsZack00 When the Kingdom of Lucis appeared in Remnant, nobody could know that a plan had been put in place ... and nobody could know that the saviors of the world could be a group of Huntsman and Huntress led by the 114th King of Lucis and his Queen ... [Major Pairing: Noctis x Ruby]
RWBY & Final Fantasy XV, T, English, chapters: 7, words: 80k+, favs: 145, follows: 162, updated: 4/30 published: 5/21/2020, [Noctis Lucis Caelum, Ruby R.]
7 In Vitam Et Mortem » by NuncaNiem A botched prophecy and a world doomed to ruin. Much to his chagrin, Harry Potter bears witness to both. (Or, alternatively, Eos outsources and gets something more dynamic and mystical than a generic Lucis Caelum.) - Crossposted in AO3.
Harry Potter & Final Fantasy XV, T, English, Fantasy & Friendship, chapters: 2, words: 10k+, favs: 29, follows: 54, updated: 4/28 published: 4/24, Harry P., Fawkes, Noctis Lucis Caelum, Dave A.
227 The Healer's Son » by Scififan33 In the Chamber of Secrets, Harry was too late to save Ginny. Hogwarts was built in a highly magical place, the Chamber itself was incredibly magical, those two interacted with Harry's desire to get away and when he woke he was utterly lost and struggling to work out how to use his new body. Harry lived happily in his forrest until cries of pain roused him. will be slash
Harry Potter & Final Fantasy XV, T, English, Fantasy & Family, chapters: 16, words: 49k+, favs: 638, follows: 846, updated: 4/27 published: 1/6/2020, [Harry P., Prompto Argentum] Cor Leonis, Ardyn Izunia
30 Final Fantasy XV: A Kazama Story » by venom rules all She lost her home, was adopted by a family that serves the King. Now Asuka and her friends sets out on a journey that will test them in every single way. Can their bonds survive? Or will it fall apart?
Tekken & Final Fantasy XV, T, English, Fantasy & Romance, chapters: 15, words: 50k+, favs: 20, follows: 20, updated: 4/24 published: 7/18/2020, [Asuka K., Prompto Argentum] Noctis Lucis Caelum, Gladiolus Amicitia
25 Rebirth of a Trio » by Scififan33 SEQUEL - REBIRTH OF A WITCH. Harry has sent Hermione, Prompto, and Noctis to a new and very different universe, one without magic. Split apart, Prompto knows they are alive somewhere. When the offer of becoming a second commercial telepath aboard B5 is made, Prompto Bester takes it, feeling drawn to the station. Surely that means they will be reunited soon?
Babylon 5 & Final Fantasy XV, T, English, Sci-Fi & Fantasy, chapters: 6, words: 19k+, favs: 59, follows: 66, updated: 4/23 published: 2/9/2020, [Noctis Lucis Caelum, Prompto Argentum] J. Sheridan, T. Winters
86 All it takes is a trio » by Scififan33 A portkey trip for a vacation away from the tensions of a post-war Britain, what could go wrong? There's a reason Harry hates the things. Though it was clear almost immediately that something had gone very wrong. They'd never seen anything like the massive building they landed in but they couldn't deny the woman's plea for them to help this strange world.
Harry Potter & Final Fantasy XV, T, English, Fantasy, chapters: 10, words: 28k+, favs: 262, follows: 295, updated: 4/6 published: 8/1/2019, [Harry P., Ron W., Hermione G.] Noctis Lucis Caelum
2 Kingdom Hearts: The Light by Princesa Alisakura Sora lived his whole life on the islands, he was a good boy who listened to the rules and respected his family. But what was the true story of the boy who lit up the room with his smile? Who was Sora and what was that mysterious power he had?
Kingdom Hearts & Final Fantasy XV, T, English, Adventure & Fantasy, words: 1k+, favs: 11, follows: 12, 3/7, Sora, Kairi, Riku, Noctis Lucis Caelum
Fishing by WinterDrake Noctis goes fishing and encounters a Pokemon that just wants to play.
Pokémon & Final Fantasy XV, K+, English, Friendship, words: 1k+, 3/7, Bulbasaur/Fushigidane, Primarina, Noctis Lucis Caelum, Ignis Scientia
12 FF X KH Story Collections » by Yurosoku Many stories left untold, why not share them? *Hiatus*
Kingdom Hearts & Final Fantasy XV, T, English, Romance & Adventure, chapters: 8, words: 32k+, favs: 13, follows: 14, updated: 2/28 published: 10/13/2020, [Sora, Kairi] [Noctis Lucis Caelum, Lunafreya Nox Fleuret]
4 The Father and the Fools by Paltry Li0n King Regis is to receive noble guests from his neighbours of Westeros. ASOIAF/FFXV One-Shot.
A song of Ice and Fire & Final Fantasy XV, T, English, Fantasy, words: 963, favs: 6, follows: 5, 2/19
3 Ash Tree » by Kaorumi Alfonse learns a new language and forges a place for himself in a world that isn't his.
Fire Emblem & Final Fantasy XV, T, English, Drama & Family, chapters: 4, words: 25k+, favs: 6, follows: 5, updated: 2/15 published: 11/8/2020, Alfonse, Noctis Lucis Caelum, Lunafreya Nox Fleuret
28 Under Kingsglaive Training » by denebtenoh In order to fight a terrible destiny, Lightning is trying to become a Kingsglaive and has Nyx Ulric as her instructor. With the infamous temper these two have... whatever can go wrong?
Final Fantasy XIII & Final Fantasy XV, T, English, Adventure & Drama, chapters: 12, words: 78k+, favs: 30, follows: 29, updated: 2/14 published: 5/27/2018
1 Ardyn Commits Application Fraud by DropofaDream Spoilers to Final Fantasy XV and Kingsglaive Final Fantasy XV ahead! It has been a year since the Oracle died and Noctis disappeared. Ardyn encounters two unexpected guests looking for an application that Noctis requested almost two years before he disappeared. A one shot for the Apply For Smash Today Collection.
Super Smash Brothers & Final Fantasy XV, K, English, Humor & Tragedy, words: 2k+, follows: 1, 2/10
8 The King become a hunter » by DarkNoct93 The King knew he was dead, that is for sure. What if by fate, he was given a chance to live a new life in a new world as a hunter? Well he does enjoy hunting before so why stop now? An event where Noctis live his life as the hunter of Remnants.
RWBY & Final Fantasy XV, T, English, Adventure & Humor, chapters: 3, words: 7k+, favs: 56, follows: 75, updated: 2/9 published: 8/12/2020, Team RWBY, Noctis Lucis Caelum
108 Icy Legacy – ABANDONED » by Pkd Weiss Schnee - now Lucis Caelum - has long been living in the Kingdom of Lucis for over 30 years as the wife of the 113th King of Lucis and mother of the Chosen King. She had abandoned hopes of ever returning back to Remnant. That is until a portal opens up at Leide that she finds herself juggling the past, present, and the future of her old and new life of Remnant and Eos. *Dead*
RWBY & Final Fantasy XV, T, English, Adventure & Family, chapters: 12, words: 21k+, favs: 325, follows: 372, updated: 2/9 published: 9/22/2018, Weiss S., Team RWBY, Noctis Lucis Caelum, Regis Lucis Caelum CXIII
9 Lighting the Night Sky by silversean24 One would think that after Noctis dies saving the world from Ardyn, he'd get a break, but the King of Kings has only begun. Now he must travel to other worlds that would be in need of his light, preparing him for his final trial.
X-overs & Final Fantasy XV, T, English, Adventure & Supernatural, words: 6k+, favs: 13, follows: 20, 2/7
496 FF X KH » by Yurosoku Two warriors of Light, the Chosen King and the Keyblade Master, face an unseen Darkness. (Spoilers for KH3 and FF XV)
Kingdom Hearts & Final Fantasy XV, T, English, Friendship & Romance, chapters: 98, words: 802k+, favs: 154, follows: 145, updated: 1/31 published: 1/28/2019, [Sora, Kairi] Noctis Lucis Caelum, Gladiolus Amicitia
4 Portrait Of A Girl » by Kathryn Montague The memories usually come when she's around ten years old. The memories of lives that amounted to nothing, friends who gave their lives over and over, the monster that will stop at nothing to make her suffer. At this point, Cloud usually feels that this new life will be as miserable as the others, yet somehow, this one feels different.
Final Fantasy VII & Final Fantasy XV, T, English, Fantasy & Drama, chapters: 2, words: 3k+, favs: 30, follows: 53, updated: 1/30 published: 8/12/2019, Cloud S., Ignis Scientia, Noctis Lucis Caelum, Regis Lucis Caelum CXIII
3 My Hands, Your Hands by A.Shah She never thought she would feel this way for someone. But then again, he wasn't just an ordinary guy. FFXIII/FFXV crossover. With small elements of Dissidia NT. (I suck at summary.) Main pairings: LightningXNoctis.
Final Fantasy XIII & Final Fantasy XV, T, English, Romance & Hurt/Comfort, words: 8k+, favs: 13, follows: 11, 1/14, [Lightning, Noctis Lucis Caelum]
206 Crystal Dreams » by Scififan33 Two lonely boys meet as children and their lives are changed for the better. Slash
Harry Potter & Final Fantasy XV, T, English, Fantasy & Hurt/Comfort, chapters: 12, words: 40k+, favs: 606, follows: 703, updated: 1/9 published: 4/18/2019, [Harry P., Noctis Lucis Caelum, Prompto Argentum] Ignis Scientia
5 Midnight by Riku Kingdom Hearts On a night that young Noctis couldn't sleep, he decided to wander around the Citadel. Out of all the things he expected to see, a man in a blue box was not one of them. But of course Noctis's curiosity got the best of him and he just had to see what this was all about.
Doctor Who & Final Fantasy XV, K+, English, Friendship & Family, words: 3k+, favs: 6, follows: 4, 1/6, 10th Doctor, Noctis Lucis Caelum
162 A Wolf Among Chocobros » by Riku Kingdom Hearts A strange instant led to Cloud finding himself in a world that was not his own. Not only that but he found himself surrounded by four strangers he had never seen before. The four strangers wondered the same thing about Cloud who just seemingly appeared out of nowhere. What will happen when Cloud meets Noctis and his friends and tags along for the adventure?
Final Fantasy VII & Final Fantasy XV, T, English, Adventure & Friendship, chapters: 17, words: 38k+, favs: 348, follows: 425, updated: 12/31/2020 published: 3/7/2019, Cloud S., Noctis Lucis Caelum, Ignis Scientia, Prompto Argentum
2 Fabula Nova Crystalis » by aimsknight06 Noctis and Luna were on their way to eternal peace ... when the vengeful deity ruins their voyage to the Afterlife. Separated again, they will have to traverse the worlds of the Fabula Universe to find each other again and stop the menace. Includes Type-0 but crossover only allows two categories max for some reason
Final Fantasy XIII & Final Fantasy XV, T, English, Fantasy & Adventure, chapters: 7, words: 21k+, favs: 21, follows: 27, updated: 12/27/2020 published: 7/7/2017, Noctis Lucis Caelum, Lunafreya Nox Fleuret
1 It's Yule Everywhere Tonight by Rydwall A series of short tales set on the Yule Night, where we catch up with some old friends. (This story is in continuity with my other story, Journey's End, and reads better if you read that one first)
Kingdom Hearts & Final Fantasy XV, T, English, Drama & Hurt/Comfort, words: 5k+, 12/20/2020, Sora, Kairi, Riku, Cidney Aurum