Sci-fi
Founded by Flyerton · Report

Alternate worlds

What-if scenarios where some event is changed, causing the butterfly effect to have a great impact upon the universe where the story is set in. Alternate worlds may meet, they may not, as long as they deviate from our current universe, it can go in here.

Order: Date Added

EThe Cuddlequest of Equestria: Turnabout is Fair Play
MLP: FiM
Comedy
Random
Sci-Fi
Turnabout. A role-reversal, if you will.
Human
Alt. Universe
Twilight
Celestia
Anon
Raven Inkwell
Tyrannosaurus_Tux · 3.2k words · 14 0 · 432 views
TUnder a Synthetic Sky
MLP: FiM
Adventure
Sci-Fi
Twilight Sparkle wants to know why she was kidnapped by aliens. Santana Guerro wants to know why a living, breathing space probe from a long-lost civilization is in his office. Both of them are going to need some answers, fast.
Human
Twilight
Logarithmicon · 25k words · 69 1 · 753 views
TTeacup
MLP: FiM
Horror
Sci-Fi
Every day, all day, Trixie transforms pebbles and bits of rubbish into teacups, and she is happy.
Alt. Universe
Trixie
Other
Mockingbirb · 1.2k words · 104 7 · 1.3k views
TThe Heroes of Bite Apple
MLP: FiM
Adventure
Comedy
Sci-Fi
You're a pegasus stallion, who is now living in the Ashen Wasteland with a monster mare, Runt. After stumbling into the town of Bite Apple, Runt's monstrous identity is exposed and now the two of you must work with the townsfolk from raiders or else.
Violence
Second Person
Alt. Universe
Apple Bloom
OC
Robipony · 15k words · 52 3 · 528 views
TSoldier of the Moon
MLP: FiM
Romance
Adventure
A young and restless Rarity enlists in the Royal Canterlot Army to help defend what is left of her home. She gets far more than she bargained for in the process.
Violence
Death
Alt. Universe
Rainbow Dash
Rarity
Zontan · 7.4k words · 113 5 · 1.2k views
TLover of the Moon
MLP: FiM
Adventure
Sci-Fi
It's been a thousand years since everypony disappeared, and I feel a change in the air. Some secrets aren't meant to be kept forever, and my beloved Princess's are no exception.
Alt. Universe
Rarity
Nightmare Moon
Silent Whisper · 5.1k words · 113 5 · 1.1k views
EChildren of the Sun
MLP: FiM
Adventure
Sci-Fi
Our Goddess has told us we will finally reach the surface today, after nearly a thousand years' wait. As her Prophet, I will be the first to see the sun again. I can only hope Equestria is still up there.
Alt. Universe
Fluttershy
Twilight
Rainbow Dash
Pinkie
Applejack
Silent Whisper · 25k words · 231 5 · 2.2k views
TPictures from the Insects’ Life
MLP: FiM
Horror
Sci-Fi
Thriller
Have you heard of changelings taking Brest? Google now: "changeling brest expansion".
Violence
OC
Thorax
Pharynx
BecauseTheNight · 2.3k words · 8 3 · 512 views
TSpellscribe
MLP: FiM
Harry Potter
Fallout
Dark
Adventure
Sci-Fi
Harry Potter is living is life when he finds a portal to Equestria, a classic story, but this time with a twist, as the world he finds himself in is one far worse than his previous life... Welcome to the Equestrian Wasteland.
Gore
Violence
Death
Profanity
Crossover
Human
Alt. Universe
OC
Solaris Vult · 47k words · 73 7 · 1.4k views
TMy Little Space Empire: Mechs are Magic
MLP: FiM
Romance
Adventure
Sci-Fi
A My Little Pony Sci-fi Space Epic
Sex
Violence
Death
Profanity
Human
Alt. Universe
Spike
Celestia
Luna
Main 6
Wheezyandbreezy · 85k words · 28 3 · 902 views
TWaiving Wanderer, Wonderous World
MLP: FiM
Romance
Adventure
Sci-Fi
You are a pegasus stallion living in an underground shelter when something goes wrong and you are forced to go out into the ashen wasteland and fix it. In a world filled with raiders and monstrous ponies can you survive?
Gore
Violence
Death
Second Person
Alt. Universe
OC
Robipony · 16k words · 99 5 · 1.1k views
TThe Shatter Realm
MLP: FiM
Sci-Fi
This story is in response to some questions Queenchrysalisforever put into a review of one of my story. How does Princess Blueberry Swirl Silverlight feel about this war.
Anthro
Alt. Universe
OC
Flurry Heart
keithsterling · 24k words · 418 views
ESeizing the stars (phase three)
MLP: FiM
Sci-Fi
This story is parallel to the Interlude story of the same same name Missing Pieces.
Anthro
Alt. Universe
Twilight
OC
keithsterling · 5.3k words · 286 views
EMissing Pieces
MLP: FiM
Sci-Fi
With a lull in the war between the Imperator Alicorns battle fleets and the echoes battle fleets as both sides have suffered considerable fleet damage. A temporary truce was called between the two parties allowing both sides to repair their ships
Anthro
Alt. Universe
Fluttershy
Celestia
OC
keithsterling · 6.9k words · 305 views
ESeizing the Star (Phase two)
MLP: FiM
Sci-Fi
With the discovery of the anthropomorphic animals from the Planet of ARK, the Imperator Alicorns from deep space, and the New Federation of Equestria from the Planet of Sol have allied with United Animal Council the ruler body of the Planet of ARK.
Alt. Universe
Anthro
OC
keithsterling · 23k words · 350 views
EThe Return of the Heart
MLP: FiM
Drama
This story is from the Shatter Realm Chronicle timeline...check out the other Shatter Relam Chronicle storyline
Anthro
Alt. Universe
Celestia
Luna
OC
Cadance
keithsterling · 8.5k words · 591 views
EThe Return of the Sun And The Moon
MLP: FiM
Random
Sci-Fi
it been nine year since the three main Princesses disapped from equestria
Anthro
Alt. Universe
Celestia
Luna
OC
keithsterling · 12k words · 9 8 · 943 views
EBroken Bonds
MLP: FiM
Drama
Sci-Fi
This a transition story from the Shatter Realm Chronicles storyline to Secret and Lies storyline
Alt. Universe
Anthro
Rarity
Celestia
Luna
OC
Cadance
keithsterling · 28k words · 517 views
ESecrets and Lies (phase two)
MLP: FiM
Drama
Sci-Fi
This phase two of this project
Alt. Universe
Anthro
Twilight
Celestia
Luna
OC
Cadance
keithsterling · 28k words · 6 6 · 391 views
ESecrets and Lies (phase one)
MLP: FiM
Drama
Sci-Fi
This a rewite from six year ago.
Alt. Universe
Anthro
Twilight
Celestia
Luna
OC
Cadance
keithsterling · 27k words · 816 views
ESeizing The Stars (phase one)
MLP: FiM
Sci-Fi
Its several years later, after the devastating global bombardment of the planet of Sol, many of huge Equestrian Cities that once populated the surface of Sol have been reduced to rubble.
Anthro
Alt. Universe
Twilight
Celestia
OC
Cadance
keithsterling · 25k words · 425 views
TI.D. - That Indestructible Something
MLP: FiM
Adventure
Mystery
Sci-Fi
Gregoria Samson awakens transformed into an Equestrian pony - yet no other human being can perceive her new body in any way. What is the incredible, monumental truth behind her impossible change?
Alt. Universe
Human
Celestia
Chatoyance · 97k words · 11k views
ETCB: Rewrite of 1996
MLP: FiM
Comedy
Sci-Fi
When Humanity met Ponykind, things went poorly for humanity. A Unicorn named Prancer travels back in time, and sets out to solve the "Human problem" with a magical virus that'll "take the evil out of Humanity". What could possibly go wrong?
Alt. Universe
Human
OC
SilverStarApple · 11k words · 32 100 · 3.1k views
TNew Horizons
MLP: FiM
Romance
Adventure
Sci-Fi
When Earth is no more, what measures will humanity take to ensure their survival?
Sex
Human
Celestia
Luna
Main 6
King Sombra
Tirek
ParaNomaly · 6.5k words · 104 12 · 2.6k views

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