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Multiverse Neo Alliance: The Prologue by mangaherospn
When the world of Umbras is under attack, it’s up to a duo of teenage geniuses to fight and recruit an alliance of heroes
Crossover - Code Geass & Anime X-overs - Rated: T - English - Fantasy/Adventure - Chapters: 1 - Words: 1,166 - Favs: 1 - Published: 9/19 - Lelouch L., OC, C.C., Dragon Ball Z - Complete
The Road to Hell by Scapel reviews
Taylor Hebert after gold morning left powerless and raked by helplessness forced to live a meaningless life in Area 11 found meaning and purpose after one night of a return to normalcy (for her).
Crossover - Code Geass & Worm - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 5,218 - Reviews: 3 - Favs: 13 - Follows: 20 - Published: 9/18 - Skitter
Secret angel of music by waterlily987
When Briana and family go to Paris, Briana has a perculiar dream of Angel of music . Briana visit s the opera house in Paris and is sent to a world of mysterious Phantom, Angel of music, full of love, mysteries, music . What secrets does opera house hide? Will Briana overcome her problems and win the heart of solitary Phantom? Will she return home?
Crossover - Code Geass & Phantom of the Opera - Rated: T - English - Hurt/Comfort/Romance - Chapters: 21 - Words: 37,189 - Updated: 9/17 - Published: 6/3/2014 - Complete
The White Mask of Sins (Code Geass & Hazbin HotelHelluva Boss) by AZ23AJ reviews
What if CC had a friend from another world and summoned after the Fall of the Black Rebellion to help her? Let's how this new masked person who happens to be an actual demon does in the world of Geass. Rated M for Mature, OCS, AU bit, and OC/Harem
Crossover - Code Geass & Hazbin Hotel - Rated: M - English - Supernatural - Chapters: 12 - Words: 23,733 - Reviews: 16 - Favs: 29 - Follows: 24 - Updated: 9/14 - Published: 8/29 - [OC, C.C.]
A Young Girl's Guerilla War by RagnartheSemiGreen reviews
Tanya dies in an artillery barrage on the Rhine Front, contrary to both her and Being X's plans. Unwilling to let his chew toy escape so easily, Being X reincarnates Tanya back into Japan... Six years before Britannia conquers Area 11. (First posted on Space Battles)
Crossover - Code Geass & Youjo Senki: Saga of Tanya the Evil - Rated: M - English - Adventure/Drama - Chapters: 24 - Words: 269,801 - Reviews: 144 - Favs: 532 - Follows: 652 - Updated: 9/14 - Published: 11/13/2021 - Lelouch L., Kallen S., Naoto S., Tanya
The Celestial Knights by Azure King and Azure Queen reviews
To obtain peace one must be willing to either destroy everything to protect it or the ability to reach an understanding. A young man would reach to stop a war before humanity loses the chance for perpetual peace. To achieve this he needs to reach towards the Heaven's and become something more than what he is to create a kind world. Naruto x Harem
Crossover - Naruto & Code Geass - Rated: M - English - Adventure/Romance - Chapters: 5 - Words: 52,525 - Reviews: 125 - Favs: 559 - Follows: 666 - Updated: 9/13 - Published: 7/11/2019 - Naruto U., C.C., Nunnally L., Tianzi
Code In the Force by gdog1 reviews
Locked away by those who claimed to be loyal to him Lelouch's name has long since been forgotten by history. Now he is back in galaxy that is not so different from the one he had left. What is a Demon Emperor to do now that all he worked for has been lost and is honestly to tried want to start again?
Crossover - Star Wars & Code Geass - Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 27,615 - Reviews: 42 - Favs: 202 - Follows: 260 - Updated: 9/11 - Published: 3/6
Book of the Shadows Looking Glass - Code Geass R3 Alter by DaCosta Rosencraft reviews
"The work of a man named Lelouch, who donned the mask of a hero named Zero, has yet to be completed. I will finish that work now." From the dark skies of a clear night five years after the Zero Requiem, a new terror descends and burns the imperial capital. A ghost from that terrible age returns. Witness a new age of terror in the Holy Britannia Empire.
Crossover - Code Geass & Fate/Grand Order - Rated: T - English - Fantasy/Supernatural - Chapters: 33 - Words: 143,254 - Reviews: 53 - Favs: 119 - Follows: 118 - Updated: 9/10 - Published: 2/9/2019 - Suzaku K., Nunnally L., Euphemia L.B., Zero
Code Tenno Uprising of the Void by EvaShinobiKaiserKnight reviews
The New War may have ended and the mystery of the Zariman has yet to be discovered but fools tampering with the Void and drawn the brave and honorable Tenno to topple yet another Empire. Fools seek to challenge God to a duel to the death and in response God answered the challenge and sent forth his devils to punish them. Now I ask what is a King to the eldritch power of the Void?
Crossover - Code Geass & Warframe - Rated: M - English - Sci-Fi/Supernatural - Chapters: 6 - Words: 71,410 - Reviews: 8 - Favs: 36 - Follows: 34 - Updated: 9/9 - Published: 8/28 - Nunnally L., Nemo, Excalibur, Operator
Code Prime - R2: Revolution by Iron117Prime reviews
Britannia has fallen, and the Decepticons are well on their way to the complete global domination of Earth. However, hope is not lost. Six months after the failed Black Rebellion, Zero and Optimus Prime have returned to finish what they've started. With their Autobot-Black Knight alliance grown with new additions, our heroes have ever intent on freeing Earth once and for all.
Crossover - Transformers/Beast Wars & Code Geass - Rated: T - English - Adventure - Chapters: 24 - Words: 346,413 - Reviews: 992 - Favs: 646 - Follows: 567 - Updated: 9/7 - Published: 1/15/2021 - Bumblebee, Optimus Prime, Lelouch L., Kallen S.
Demon Emperor and Demon King by Imperator's slave reviews
Lelouch expected many things after his death. What he didn't expect was to find himself in the war between seven wizards and historical figures. Still, the prize seems nice enough so he might as well take it. Not to mention working with a fellow demon might be a unique experience.
Crossover - Fate/stay night & Code Geass - Rated: M - English - Adventure/Fantasy - Chapters: 26 - Words: 370,383 - Reviews: 1092 - Favs: 2,108 - Follows: 2,412 - Updated: 9/6 - Published: 2/11/2020 - [Oda Nobunaga, Lelouch L.] Saber, Avenger
Highschool DxD: Lelouch of the Reincarnation by Flux Casey reviews
A new life. Reborn in a world of devils and chess-themed intrigue. After sacrificing everything for a peaceful world, was a Demon Emperor being granted his own personal heaven?
Crossover - Code Geass & High School DxD/ハイスクールD×D - Rated: M - English - Supernatural - Chapters: 33 - Words: 131,694 - Reviews: 622 - Favs: 1,769 - Follows: 2,102 - Updated: 9/6 - Published: 12/31/2021 - Lelouch L.
Reflections by TheStrangerThatCameFromNowhere reviews
No plan survives first contact with the enemy. Virtually anything can happen on the battlefield. In the end, all one can do is adapt and plan ahead for the future. That being said, how can one predict being sent to another world, with seemingly no way back?
Crossover - Code Geass & Arknights - Rated: T - English - Drama - Chapters: 1 - Words: 1,455 - Reviews: 6 - Favs: 39 - Follows: 48 - Updated: 9/5 - Published: 10/9/2021 - Lelouch L., Amiya, W
Code Geass: The Rise of Cobra - Duke's Report by SulliMike23 reviews
Cobra is in the world of Code Geass and GI Joe has come to stop them, but as the Joes prepare for an inevitable confrontation with Britannia, Duke sends a report to GI Joe HQ letting him know how the Joes are feeling.
Crossover - G. I. Joe & Code Geass - Rated: T - English - Chapters: 2 - Words: 5,379 - Reviews: 10 - Favs: 12 - Follows: 7 - Updated: 9/5 - Published: 8/29 - Complete
The Demon Emperor of the Seventh Heaven by Dath Zion reviews
It was known as 'The knowledge of the Hidden', something that falls outside the scope of common thinking, something incomprehensible and indecipherable to the common masses. Born into a new world after the Zero Requiem, Lelouch found a new purpose for himself. Would he destroy this world or would he create it anew?
Crossover - Code Geass & Toaru Majutsu no Index/とある魔術の禁書目録 - Rated: T - English - Supernatural/Adventure - Chapters: 3 - Words: 13,986 - Reviews: 15 - Favs: 78 - Follows: 97 - Updated: 9/4 - Published: 8/15
White Devil & Black Demon by Fan of Fanfics21 reviews
A girl whose destiny of 'befriending' others makes a fateful encounter; a rising demon in the form of a boy from another world who watches her tale and lends his hand when needed. A chance encounter tale of a White Devil and Black Demon.
Crossover - Magical Girl Lyrical Nanoha & Code Geass - Rated: T - English - Chapters: 4 - Words: 4,579 - Reviews: 1 - Favs: 20 - Follows: 21 - Published: 9/3 - Nanoha T., Lelouch L.
Code Jedi - R1: Lelouch of the Rebel Alliance by DarkerEvening reviews
Luke Skywalker and his friends find themselves on a world ruled by the ruthless Britannian Empire. Soon, they cross paths with an exiled prince, who comes to wield a mysterious power. Two rebellions will unite as one in a fight for freedom against Britannia and the Galactic Empire. But when Darth Vader arrives... Hell is sure to follow. (Revision of R1 and The Empire Strikes Back)
Crossover - Star Wars & Code Geass - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 303,349 - Reviews: 485 - Favs: 309 - Follows: 318 - Updated: 9/3 - Published: 8/10/2021 - Luke S., Darth Vader, Lelouch L., C.C.
Doom of Britannia by Omega E The Reader reviews
Demons have gotten themselves involved in the war between Britannia and the Black Knights. It is up to the Doom Slayer to rip and tear them a new one.
Crossover - Doom & Code Geass - Rated: M - English - Sci-Fi/Supernatural - Chapters: 7 - Words: 17,120 - Reviews: 26 - Favs: 37 - Follows: 41 - Updated: 9/1 - Published: 2/18 - Doomguy, Lelouch L.
Lelouch's Romance Dawn by Ordinn Beaucephalis reviews
"That's some impressive presence you've got there, kid. Tell me, how come you're not a commander yourself?"
Crossover - One Piece & Code Geass - Rated: M - English - Mystery/Adventure - Chapters: 16 - Words: 191,983 - Reviews: 221 - Favs: 790 - Follows: 890 - Updated: 8/27 - Published: 8/4/2016 - Robin, T. Law, Charlotte Katakuri, Lelouch L.
The Overlord Geass by PaulyThide reviews
A Supreme Being cannot be killed or defeated and even when stopped. It may come back for revenge. And so, the consciousness of the universe, God should have never attacked someone with the ability to destroy it all. A new era is about to begin, and while slowly gathering the strength to pay the debt. The Leader of Ainz Ooal Gown, will bring the world to its knees.
Crossover - Code Geass & Overlord/オーバーロード - Rated: M - English - Fantasy/Sci-Fi - Chapters: 12 - Words: 90,061 - Reviews: 131 - Favs: 407 - Follows: 474 - Updated: 8/26 - Published: 11/3/2021 - C.C., Kallen S., OC, Albedo
Sasuke: Sound of a Revolution by Amazingchingao reviews
When Itachi used the Tsukuyomi it was supposed to give Sasuke more hate for his brother instead, it unlocked memories of a past life now the shinobi world will witness the rise of a demon and the birth of a revolution.
Crossover - Naruto & Code Geass - Rated: T - English - Drama/Adventure - Chapters: 9 - Words: 27,444 - Reviews: 46 - Favs: 109 - Follows: 123 - Updated: 8/24 - Published: 4/27 - Sasuke U., Lelouch L., Tayuya, Naruto U.
Code Gundam: A forgotten reality by Fallon 35 reviews
In a alternate world where bitannia nor Knightmare frame's exist but is replaced with mobile suits and geass is replaced with new-types. suzaku now leads the rebellion while lelouch leads a cold war it all takes up to one man to change the world
Crossover - Code Geass & Gundam Seed - Rated: T - English - Sci-Fi/Drama - Chapters: 6 - Words: 51,242 - Reviews: 5 - Favs: 10 - Follows: 8 - Updated: 8/23 - Published: 1/8
Sunrider: The Mask of Zero by sephiroth12285 reviews
It has been years since the Demonic Emperor Lelouch had been slain by Zero with a small few aware of the true events that led to his demise, but now Lelouch finds himself alive again. Drawn into a conflict much larger and dangerous than he could have imagined, has its own Tv Tropes page now.
Crossover - Code Geass & Sunrider - Rated: M - English - Adventure/Sci-Fi - Chapters: 19 - Words: 146,139 - Reviews: 85 - Favs: 165 - Follows: 157 - Updated: 8/22 - Published: 9/23/2015 - Lelouch L., Kayto S., Ava C., Lynn
Sinister War: Scatter-verse by Nexus Matrix reviews
Our story begins with Peter Parker who is from another universe getting involved with Spiderman's foes that formed the greatest Sinister team ever created. Yet the catch is this will decide the fate of not just his own life, but the world that will face this terrible rogue's gallery. (Officially open)
Crossover - Spider-Man & Code Geass - Rated: T - English - Adventure - Chapters: 3 - Words: 17,430 - Reviews: 3 - Favs: 4 - Follows: 4 - Updated: 8/19 - Published: 1/3 - Peter P./Spider-Man, Lelouch L.
Area 11 by definitely a sadomasochist reviews
Area 11, the newest corner of the Britannian Empire, with a prospering economy and equality for Elevens. Or so they say. Many are unhappy with this regime, and one Lelouch vi Brittania, a prince in hiding, uses his newly-gained supernatural powers to lead a revolution as Zero, a masked messiah. So, Britannia contacts the mightiest mercenary army on Earth to fight him: Outer Heaven.
Crossover - Metal Gear & Code Geass - Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 25,263 - Reviews: 1 - Favs: 4 - Follows: 2 - Updated: 8/19 - Published: 6/12 - Liquid S., Solidus S., Lelouch L., Mao (Code Geass)
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