Stellaris Crossovers
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StellarWars: The Clone Wars by Jack Smith1
The Empire was fighting against Rebels on an planet when a unknown unit crash landed on the Planet, Revealing the Existence of the Galactic Republic, With the Passing of the Andromeda Expeditionary Force act which allowed 1st Corps to deploy to Andromeda (Star Wars Galaxy) along side other Units, Will the Empire save the Republic or Will the Dark Side win?
Crossover - Star Wars: The Clone Wars & Stellaris - Rated: M - English - Sci-Fi/Drama - Chapters: 2 - Words: 11,589 - Favs: 5 - Follows: 7 - Updated: 4/30 - Published: 4/16 - Anakin S., Captain Rex, Clones, OC
Stellar Effect by Brandon Storm reviews
The Reapers trap was perfect in its design. Their execution refined over billions of years, their technology refined since the dawn of time itself. Right up until Someone Broke the Trap!
Crossover - Mass Effect & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 83 - Words: 363,315 - Reviews: 356 - Favs: 429 - Follows: 545 - Updated: 4/28 - Published: 8/7/2022
Wardens of Victory by Nullim reviews
After leaving Marian behind in the hands of Pioneer, the Commander is weary of all the trials he's had to face but he knew he couldn't just give up yet, he had a lot of work to do to make sure everyone he cared for was safe. However, a sudden development would forever change the fate of the planet. Who are these mechanical strangers and what do they want?
Crossover - Stellaris & Goddess of Victory: Nikke - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 10,541 - Reviews: 2 - Favs: 3 - Follows: 3 - Published: 4/26 - Commander
UNE meets the Terran Dominion by let me cook reviews
Circa 2508 (SC2 epilogue & Stellaris end-game); What if a wormhole connecting the Milky Way of Stellaris and Koprulu Sector formed during the epilogue? btw i suck at creative writing lol all the dialogue is probably clunky af, sorry in advance :)
Crossover - StarCraft & Stellaris - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 27 - Reviews: 8 - Favs: 3 - Follows: 3 - Updated: 4/18 - Published: 2/6
Stepping Beyond Boundaries and Battling Abyssals by vmoneywashere reviews
The Juggernaut, one of the most powerful vessels to grace the skies and stars of the Milky Way. Yet even they are not invulnerable and one, the UNSV Hephaestus's Hammer was sacrificed to sever the Unbidden Dimensional Rift. But now, she has a new chance to forge a new path forward.
Crossover - Kantai Collection & Stellaris - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 13,861 - Reviews: 4 - Favs: 26 - Follows: 39 - Published: 3/30 - OC, Kongou, Iowa
Halo: Operation Christ Sake by The Drabble Drafter reviews
Based off of "The Eagle and the Dove" by XENMEGALOGOS, mankind had been fighting a losing war with the Covenant. In one universe, mankind discovered the Halo arrays and brought the 27 year genocide to an end. In another universe, however, mankind discovered another galaxy and thus another mankind.
Crossover - Halo & Stellaris - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 11,669 - Reviews: 5 - Favs: 27 - Follows: 30 - Updated: 3/20 - Published: 3/6 - J. Keyes, Cortana, OC
Stellaris: Riftjumper by AdriannairdA reviews
The Technocracy knew something was out there, watching the galaxy from a place no sapient can point to. It was not until two empires gained powers from a place known as "The Shroud" that further research indicated that this Shroud could connect universes. We will prevail for all of humanity. WARNING: Shitty dialogue and Warp Shenanigans abound (mainly Tzeentch and Slaanesh)
Crossover - Warhammer & Stellaris - Rated: M - English - Sci-Fi/Adventure - Chapters: 17 - Words: 98,705 - Reviews: 80 - Favs: 70 - Follows: 82 - Updated: 3/18 - Published: 10/13/2023 - Eldar, Imperial Guard, OC
Stellaris: Deja Vu by AdriannairdA reviews
When the Technocracy loses a science ship while exploring a nearby galaxy identical to the Milky Way, what first is a simple search and destroy mission becomes something much more complicated when it turns out, there are humans and other aliens there too. This'll be interesting... WARNING: Contains Plot Deviation and Shitty Dialogue
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 10,406 - Reviews: 12 - Favs: 28 - Follows: 43 - Updated: 2/24 - Published: 1/10 - OC
Stellar Effect Codex by Brandon Storm reviews
A Codex exploring the History and Lore of the Stellar Effect Universe
Crossover - Mass Effect & Stellaris - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 37,047 - Reviews: 29 - Favs: 44 - Follows: 48 - Updated: 2/21 - Published: 8/7/2022
StellarRWBY: A princess's mission by Jack Smith1 reviews
The year is 2253 and Sarah is enjoying life on her homeworld of Terra but her grandmother decides to send her to a new world unfamiliar to her yet at the same time has their own problems, Will Sarah and her people help Renmant or damn it for all of time?
Crossover - RWBY & Stellaris - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 7,872 - Reviews: 2 - Favs: 9 - Follows: 10 - Updated: 1/23 - Published: 3/10/2023 - Ozpin, OC, Team RWBY, Team JNPR
Outside Context, Remnant's in our sights by vmoneywashere reviews
10 years ago, the nations of Earth discovered the world of Remnant. Political infighting, an extra-dimensional crisis, and wars forced the Terran people to ignore it. Now, it's time to return and for the UNE to figure out what's going on. And for one unlucky trooper to go back to school. Crossover with Stellaris and RWBY, with hints of JPDE, Halo, and Xenonauts.
Crossover - RWBY & Stellaris - Rated: T - English - Drama/Sci-Fi - Chapters: 3 - Words: 20,625 - Reviews: 8 - Favs: 31 - Follows: 44 - Updated: 1/6 - Published: 8/15/2023 - Yang X.L., Ozpin, OC, Team JNPR
Lunar Squad And The Vulpin Kingdom by Graven661 reviews
There is a war between the Rebel Alliance and the Galactic Empire trying to fight to control the Galaxy. However there is another Galaxy full of different Species and there are going to be nine different Empires come to the Star Wars universe. However one of the Empire is going to help the Rebels to defeat all the enemy Empires. In the Rebels there is a Squad who are the best.
Crossover - Stellaris & Star Wars - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 34,536 - Reviews: 3 - Favs: 8 - Follows: 6 - Updated: 1/2 - Published: 1/8/2023 - Luke S., Leia O., Han S., Darth Vader
Blokkats & Entities (Worm x Stellaris: Gigastructural Engineering SI) by CommanderAsaru reviews
Two species have sought to escape the inevitable heat death of their respective universes. One was a race of immense multidimensional creatures that sought an answer to escape the end. The other, a race of psionic robotic cats composed of attomachines, already found one and attempted to enact it before being destroyed. At least... they were supposed to have been.
Crossover - Worm & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 3,458 - Reviews: 13 - Favs: 126 - Follows: 172 - Published: 1/2 - Skitter, Armsmaster, Miss Militia, OC
Interstellar Echoes: Muv-Luv Chronicles by vmoneywashere reviews
Muv-Luv/Stellaris Crossover. The BETA have pushed the surviving Human nations to the brink, they have maybe decades left. But an unexpected event brings another galaxy into the fight. An old warbird is called up to serve, to bring death to the BETA and end a fight. (Still up for adoption if anyone wants it).
Crossover - Muv-Luv/マブラヴ & Stellaris - Rated: T - English - Sci-Fi/Suspense - Chapters: 3 - Words: 16,927 - Reviews: 9 - Favs: 18 - Follows: 13 - Updated: 1/2 - Published: 4/25/2023
StellarGundam: A Princess's Trial by Jack Smith1 reviews
The Empire is testing out a new Mobile Suit with 19 years old Sarah Beatrice Smith the heir to the Imperial Throne and Commander of the Vaunted 1st Corps also known as "Sarah's Rough riders" was testing it out, However the guilt from her battle on Theta Ender left Physical, mental and emotional scars, Will she save the Federation alongside her Empire? Or damn it.
Crossover - Gundam UC & Stellaris - Rated: M - English - Sci-Fi/Drama - Chapters: 5 - Words: 10,820 - Reviews: 1 - Favs: 3 - Follows: 3 - Updated: 12/19/2023 - Published: 3/22/2023 - Amuro R., Bright N., Frau Bow, Char A.
Ever Forwards by kivey reviews
It should have been an easy win, maybe the plan wasnt great but he at least had one. Now He's Thousands of years out of place, and put in charge of a galactic empire. The only goal he's given: The Survival and success of the Empire and himself. Then again, the Galaxies a dangerous place.
Crossover - Harry Potter & Stellaris - Rated: M - English - Adventure/Sci-Fi - Chapters: 17 - Words: 95,254 - Reviews: 56 - Favs: 154 - Follows: 178 - Updated: 12/3/2023 - Published: 11/30/2017
Stellar86: Honor and Blood by Jack Smith1 reviews
The Empire's 1st Corps moves into a Section of space currently unexplored and found a world quite likely to challenge everything they know and everything they thought they know, And yet They are the ones who will repay the tragedies of the world's past with their Blood and Honour, Will the Empire Survive this war or be drowned in it's own issues helping the 86?
Crossover - Stellaris & 86 エイティシックス - Rated: M - English - Drama/Sci-Fi - Chapters: 2 - Words: 7,546 - Reviews: 1 - Favs: 4 - Follows: 3 - Updated: 11/27/2023 - Published: 6/12/2023 - Vladilena Milizé/Lena, Shinei Nouzen, OC, Annette
A Helping Hand by Red Viy reviews
The United Nations of Earth goes through a wormhole that leads into Warhammer 40k. The entire galaxy is in disarry and now a helping hand reaches out. Based off my vanilla playthrough after the game ended, but im including dlc content in the story. Warning: ground combat can and will get gory so expect blood, guts, bones, and bullets
Crossover - Stellaris & Warhammer - Rated: M - English - Sci-Fi/Adventure - Chapters: 14 - Words: 56,510 - Reviews: 109 - Favs: 205 - Follows: 259 - Updated: 11/25/2023 - Published: 1/2/2022 - Eldar, Inquisition, Orks, Tyranids
From the Depths of the Pacific to the Edge of the Galaxy by vmoneywashere reviews
An act of Celestials delaying a war in the making by 400 years, a botched preemptive strike, the death of thousands, and the summoning of a new form of life. This beginning of a new age, good and ill, for all of Mankind and their creations. The Abyssal-Terran War begins. (Experimental one-shot).
Crossover - Kantai Collection & Stellaris - Rated: T - English - Sci-Fi/Supernatural - Chapters: 1 - Words: 6,476 - Reviews: 1 - Favs: 11 - Follows: 12 - Published: 11/24/2023 - OC, Kongou, Saratoga
Stellaris of Gears: Imperial-Locust War by Jack Smith1 reviews
The Empire is in a time of peace it has never known for Centuries since the end of the Two Brothers' War, but now in 2258, Crown Princess Sarah Beatrice Smith's daughter Midna had nightmares and a past life inform her of the Situation Prompting the first Imperial Expeditions outside of Imperial Space since the "Reconquest of Colonies" the Empire launched in the 2230s.
Crossover - Gears of War & Stellaris - Rated: M - English - Horror/Sci-Fi - Chapters: 2 - Words: 6,619 - Reviews: 3 - Favs: 4 - Follows: 6 - Updated: 11/7/2023 - Published: 10/23/2023 - Marcus F., D. Baird, R. Prescott, OC
Sanctuary by Gekkou Tenshi reviews
In which teyvat is a ring world upon where the false sky is the one directly facing to the home star and the abyss plains directly the opposite where no growth exist, as for gnosis and visions? Zroni crystals.
Crossover - Stellaris & Genshin Impact - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 701 - Reviews: 1 - Favs: 6 - Follows: 4 - Published: 11/4/2023 - Aether, Lumine
Protection and Service Complex of Halkeginia by Kalimatronix reviews
Warning! Space-time anomaly detected. Lost contact to the Central Intelligence core. Autonomy protocols initiated. Alert! Organics detected. Primary protocol: All for organics, for all all organics. New directive formulated: Serve these organics and protect them from any danger, at any cost.
Crossover - Familiar of Zero & Stellaris - Rated: M - English - Sci-Fi/Fantasy - Chapters: 5 - Words: 25,814 - Reviews: 12 - Favs: 82 - Follows: 116 - Updated: 10/13/2023 - Published: 6/30/2023 - Louise, Siesta
Stellaris: From Beyond Remnant by AdriannairdA reviews
The citizens of Remnant scuttle about their daily lives, unaware of the cosmos above them. If they were to be watched by a civilization from beyond Remnant, how would they react to their presence? Would first contact be peaceful or violent? Would the watchers be benevolent or malevolent? Only time will tell. WARNING: contains plot deviance and shitty dialogue
Crossover - RWBY & Stellaris - Rated: M - English - Adventure/Sci-Fi - Chapters: 14 - Words: 37,526 - Reviews: 24 - Favs: 42 - Follows: 51 - Updated: 10/12/2023 - Published: 8/1/2023 - OC, Team RWBY, Team JNPR, Team CFVY
The Empire of Terra by Lan Katafis reviews
It is the year of the lord, 851, nearly four centuries after the fall of Western Rome. The ashes left behind has given rise to new states and entire peoples changed. Kingdoms arose and conquered surviving and thriving in a new world, but a change in fate will see all of humanity united under… the Empire of Terra.
Crossover - Crusader Kings & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 22,606 - Reviews: 31 - Favs: 8 - Follows: 9 - Updated: 9/11/2023 - Published: 7/4/2023
Things the United Nations is Banned from doing (The List!) by vmoneywashere reviews
A new galactic power, the Solar United Nations, has taken a mantle alongside the Citadel Council. Two powerful forces acting in concert to form a stable, galactic community- Where did these space creatures come from? What do you mean the Humans Summoned spirits- No! Don't Adopt the Quarians! (One-shot, but can expand later).
Crossover - Mass Effect & Stellaris - Rated: T - English - Humor/Sci-Fi - Chapters: 4 - Words: 4,559 - Reviews: 13 - Favs: 109 - Follows: 133 - Updated: 7/7/2023 - Published: 5/24/2023 - Councilor Tevos, OC
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