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Operation ECLIPSE - Apocrypha and Sidestories by HelenTheMoon
Omakes, sidestories and Apocrypha written by me and others for Operation ECLIPSE. The Sidestories are canon, the rest just for fun. Feel free to submit content yourselves! (I'll credit you, obviously)
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Chapters: 5 - Words: 7,472 - Favs: 7 - Follows: 4 - Updated: 3h - Published: 12/25/2023
Mass Effect-Batman: Crisis On The Citadel by James Keller reviews
After 2 years of operating on Omega, The Dark Knight comes to the Citadel in pursuit of a dangerous new drug that is about to be unleashed upon the very heart of Council Space. This will put him into an alliance with Lt. Garrus Vakarian of C-Sec's Major Crimes Unit as they uncover a massive Conspiracy.
Crossover - Mass Effect & Batman - Rated: M - English - Crime/Mystery - Chapters: 6 - Words: 38,922 - Reviews: 13 - Favs: 33 - Follows: 39 - Updated: 10h - Published: 10/29/2021 - Bruce W./Batman, Garrus V., Liara T'Soni, Tali'Zorah
Mass Cross Frontier by weebee reviews
The culmination of several terrible ideas. From an il-advised scientific expedition, to the Illusive man's shifting plans, to a couple of authors who should really know better. No, it's not what you think.
Crossover - Anime X-overs & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 59,537 - Reviews: 20 - Favs: 55 - Follows: 73 - Updated: 13h - Published: 1/29/2021
Exciting Opportunities by Of Questionable Veracity reviews
In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.
Crossover - Warhammer & Mass Effect - Rated: K+ - English - Chapters: 40 - Words: 230,255 - Reviews: 561 - Favs: 768 - Follows: 1,070 - Updated: 13h - Published: 4/15/2019 - J. Garson
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 27 - Words: 150,741 - Reviews: 162 - Favs: 322 - Follows: 470 - Updated: 1/2 - Published: 2/21/2022
Imperial Warlord: Rewrite by deeed22 reviews
Two friends once cast adrift in a universe not their own find themselves in another. With their goals unknown, purpose not directed or forced, are they finally free to choose their own way?
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure - Chapters: 4 - Words: 14,727 - Reviews: 37 - Favs: 152 - Follows: 234 - Updated: 1/1 - Published: 8/30/2021 - Imperial Guard, OC, Adeptus Mechanicus
Robo Effect by Star Sage reviews
The Robotech wars are over. The survivors of Humanity and the Zentraedi are now alone in the universe, and so, come together, becoming something new, becoming Terrans. Now this race will find itself thrust into the galactic scene, as the Citadel Races and those beyond test these young upstarts, and in the shadows, old things begin to move.
Crossover - Robotech/Macross & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 63 - Words: 225,988 - Reviews: 635 - Favs: 900 - Follows: 972 - Updated: 1/1 - Published: 4/14/2015
Never Fade Away by Ideas-Guy reviews
Lives are cheap and money is everything. That's how the orphanage made its money - lending out children for human expirementation. L is an old man at the age of fifteen and he knows he doesn't have much time left. All that mattered was getting out, but he soon learns that the world is a lot bigger than Night City. And that the galaxy is a lot bigger than Earth.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Adventure/Drama - Chapters: 49 - Words: 230,055 - Reviews: 346 - Favs: 1,066 - Follows: 1,193 - Updated: 1/1 - Published: 10/31/2022 - Shepard, V
Cursed by Hookshot25 reviews
Clayton Carmine has only known hate and carnage for so many years. But once he survives the war he hoped to die in, things get strange. When people need help he isn’t one to shy away, and while helping Baird he gets sent to a place in dire need of a man like him. A man that can’t be claimed by death as easily as his kin.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 110,707 - Reviews: 19 - Favs: 64 - Follows: 93 - Updated: 1/1 - Published: 4/10/2023 - C. Carmine, Samantha B./Sam, Shepard, Tali'Zorah
A Change of Fate by kaln7 reviews
The Colonials search for the Thirteenth tribe after the fall of their colonies maybe at an end, when they make contact with the Systems Alliance, but will Earth lend them a hand or will the Cylons destroy them all.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 113,475 - Reviews: 224 - Favs: 417 - Follows: 583 - Updated: 1/1 - Published: 4/8/2017
Stargate A New Age by kaln7 reviews
Shepard defeated the Collectors, but now he must face a universe different from his own, but his team won't be the only team to help him get through this uncertain future.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 151,582 - Reviews: 171 - Favs: 283 - Follows: 396 - Updated: 1/1 - Published: 4/6/2017
The Irregular Blade Effect by ferduran reviews
Sequel of Unlimited Rettousei. Had you ever wondered what would happen if the Citadel council meet a species that all its members have powers like the Asari but different, has a stronger military like the Turian, and tech more advance than the Salarian. All that without element zero, but more importantly, they do not want to follow their orders.
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Fantasy/Sci-Fi - Chapters: 6 - Words: 62,024 - Reviews: 153 - Favs: 635 - Follows: 813 - Updated: 12/31/2023 - Published: 12/8/2021
The Eternal Cycle by Imperatix reviews
The Eternal Empire has carved a place in the galaxy through unity, duty, and faith. These tenants have allowed humanity to rule the stars, however it is uncertain times in the galaxy, with the Emperor's faithful being across the galaxy, it's only a matter of time before there is conflict.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 3,139 - Reviews: 11 - Favs: 52 - Follows: 61 - Updated: 12/30/2023 - Published: 10/3/2023
Galaxia en Convergencia: El Acenso de Dax Cyband by saninkarurosu501
Han pasado 5 años desde que Dax Cyband llego a la Vía Láctea, su verdadera identidad esta oculta, nadie sabe de donde viene. Vive lo que hace mucho tiempo deseaba una vida de paz, pero la paz no es duradera, fuerzas obscuras compiten por la dominación de la galaxia. ¿Se quedara al margen? o ¿O será un caballero jedi por ultima vez?. La voluntad de la fuerza ha cambiado la historia
Crossover - Star Wars & Mass Effect - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 3 - Words: 23,026 - Follows: 4 - Published: 12/30/2023 - OC, Ashley W., Tali'Zorah, Shepard
Asymmetry: A Tragedy in Ten Acts by Pseudomonus reviews
Almost 200 years after the Reapers' destruction, Commander Benezia Shepard is given a top secret mission: To explore a strange new universe; to seek out new threats and new enemies; to boldly go where no Asari has gone before! And, at the height of the Dominion war, with the Federation facing defeat, Captain Forest encounters an impossible ship that may hold the key to victory.
Crossover - StarTrek: Deep Space Nine & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 9 - Words: 72,175 - Reviews: 19 - Favs: 24 - Follows: 32 - Updated: 12/29/2023 - Published: 11/7/2023
The Sword of the Geth by Doctor poo and the TURDIS reviews
Dying on Mantle's Approach, Cortana wakes up in an unfamiliar environment. In her drive to get home, she 'employs' the assistance of the local synthetics. She never wanted to be a galactic overlord. But a UNSC AI in an environment woefully unprepared for one of her caliber makes an easy one.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 17 - Words: 82,678 - Reviews: 373 - Favs: 773 - Follows: 1,088 - Updated: 12/29/2023 - Published: 11/23/2023 - Cortana, Shepard
Mario Effect by OroDeus
Haunted by visions of impending doom, Mario summons his ragtag team of explorers to adventure. Their journey across the stars will uncover the koopa king's horrible plot to take over the galaxy.
Crossover - Mario & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 2,068 - Favs: 1 - Follows: 1 - Updated: 12/28/2023 - Published: 12/27/2023 - Mario, Luigi, Daisy, Toad
The Star Union by ImageViewer reviews
In the Year 2015, Earth was attacked by an unknown Alien Empire. With X-com they fought the alien menace again and again, overcoming the Odds and Forging a new Empire comprised of the former enemies enslaved to the Elder's will. Now forged into an empire the likes of which the galaxy hasn't seen, they take their first steps into the great Unknown. Major Crossovers and OCs.
Crossover - Mass Effect & X-Com - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 48,483 - Reviews: 36 - Favs: 337 - Follows: 463 - Updated: 12/28/2023 - Published: 7/17/2021 - Liara T'Soni, Tali'Zorah, Shepard, OC
Displaced Destiny by TheCandyManCant reviews
Rigel faced extinction every day of his life, fighting an unending tide of enemies to safeguard his people. When the time came for one last sacrifice, he didn't hesitate. But Destiny had other plans for him... I do not own any established properties and receive no monetary compensation for this fanfic.
Crossover - Mass Effect & Destiny - Rated: M - English - Chapters: 36 - Words: 156,980 - Reviews: 85 - Favs: 208 - Follows: 286 - Updated: 12/28/2023 - Published: 11/19/2023
Drift Effect by Demon Eyes Laharl reviews
In the early 21st Century, Humanity made First Contact. By the end of it, they lost Earth. However, they survived, carving their place in the sea of stars, hoping one day to finally retake back their home world. The void, though, is a dangerous place. Another alien artifact was found near one of their border worlds, which would lead to another conflict.
Crossover - Mass Effect & Misc. Movies - Rated: M - English - Chapters: 11 - Words: 89,311 - Reviews: 67 - Favs: 196 - Follows: 290 - Updated: 12/27/2023 - Published: 8/13/2023
Untamed by ChaosSpartan575 reviews
Shepard activated the Crucible and instead of dying, landed in Westeros during the Long Night. She aided a man known as the Last Hero in defeating the Others earning the title, the Red Vixen. Now her decedents thousands of years later have gotten caught up in the War of the Five Kings. Will House Shepard survive the coming winter? Rated M.
Crossover - Mass Effect & Game of Thrones - Rated: T - English - Suspense/Adventure - Chapters: 3 - Words: 17,149 - Reviews: 25 - Favs: 159 - Follows: 198 - Updated: 12/26/2023 - Published: 8/10/2017
Salvation (ENG) by Z0n3theDaMn3d reviews
The knowledge of sin is the beginning of salvation. More than 40 years after the end of the war against the Covenant, a new storm is brewing on the edge of the human empire. Will the colonies of the Linwood Sector be able to withstand this new threat or will they burn like Harvest once did?
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 87,307 - Reviews: 153 - Favs: 389 - Follows: 575 - Updated: 12/26/2023 - Published: 10/8/2020 - T. Hood, Shepard, Councilor Tevos, Benezia
Operation ECLIPSE by HelenTheMoon reviews
Pre-ME1 post-Frontiers Xover, in which the Sonic version of Earth replaces ME Earth. A Batarian planet suddenly turns invisible, and things only get weirder from there. That poor STG agent won't know what hit him, that's for sure. And neither will the rest of the galaxy - once Sonic and Eggman get there. Crossposted on Spacebattles and AO3. Rating may change.
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 36,697 - Reviews: 7 - Favs: 39 - Follows: 50 - Updated: 12/25/2023 - Published: 11/26/2023 - Sonic, Tails, OC
Fall of the Citadel by Richard Scepton reviews
A fleet without an ocean, a humanity scarred forever by war. An admiral without a fleet, and a galaxy on the brink of war. It is the link in between, that will decide our fate, and that of the galaxy as a whole. CW: PTSD, depression, hand-to-hand combat and bayonets. Recommend not for children
Crossover - Mass Effect & Kantai Collection - Rated: T - English - Romance/Sci-Fi - Chapters: 10 - Words: 99,838 - Reviews: 51 - Favs: 68 - Follows: 103 - Updated: 12/25/2023 - Published: 10/26/2023 - Shepard, Shigure, OC, Fubuki
Shadows and Dust by HistoricalHijinks reviews
Shattered, Reborn, Reforged, Remade. The gaze of the Pheonix Force, seeking purpose and understanding, falls upon the Reapers and their harvests. Disgusted by their perverted, farcical 'cycle', it decides to wipe their stain from the multiverse. Needing a perfect host, it waits tens of millennia until, as Hannah Shepard is miscarrying due to eezo radiation, it finds one in her womb
Crossover - X-Men & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 4 - Words: 21,450 - Reviews: 39 - Favs: 238 - Follows: 329 - Updated: 12/22/2023 - Published: 6/25/2023 - Ashley W., Liara T'Soni, Shepard
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