The 30 Best Sci-Fi Horror Movies on MGM+ (July 2026)

1

The Martian (2015)

IMDb 8.0 🍅 91% 2h 21m

Directed by Ridley Scott

✦ MovieMuse AI takeIsolation on Mars becomes existential horror: the planet itself indifferent to survival, transforming hard sci-fi problem-solving into psychological endurance torture.

During a manned mission to Mars, Astronaut Mark Watney is presumed dead after a fierce storm and left behind by his crew. But Watney has survived and finds himself stranded and alone on the hostile planet. With only meager supplies, he must draw upon his ingenuity, wit and spirit to subsist and find a way to signal to Earth that he is alive.

2

Night of the Living Dead (1968)

IMDb 7.8 🍅 95% Letterboxd 3.9 1h 36m

Directed by George A. Romero

✦ MovieMuse AI takeGrainy, unflinching social realism transforms zombie siege into indictment of human barbarism—the real horror isn't undead but us.

A ragtag group barricade themselves in an old Pennsylvania farmhouse to remain safe from a horde of flesh-eating ghouls ravaging the Northeast.

3

Invasion of the Body Snatchers (1956)

IMDb 7.7 🍅 97% Letterboxd 3.8 1h 20m

Directed by Don Siegel

✦ MovieMuse AI takePod people's emotionless perfection weaponizes conformity itself; paranoia becomes the only rational response to undetectable invasion.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

4

The Return of the Living Dead (1985)

IMDb 7.3 🍅 71% Letterboxd 3.8 1h 31m

Directed by Dan O'Bannon

✦ MovieMuse AI takeGallows humor meets genuine dread as military incompetence resurrects the dead—sci-fi horror's most inventive premise about bureaucratic failure.

When two bumbling employees at a medical supply warehouse accidentally release a deadly gas into the air, the vapors cause the dead to rise again as zombies.

5

Starman (1984)

IMDb 7.0 🍅 83% Letterboxd 3.6 1h 55m

Directed by John Carpenter

✦ MovieMuse AI takeAlien tenderness undercuts sci-fi paranoia; Starman's emotional authenticity proves the extraterrestrial more human than pursuing government.

When an alien takes the form of a young widow's husband and asks her to drive him from Wisconsin to Arizona, the government tries to stop them.

6

Annihilation (2018)

IMDb 6.8 🍅 88% 1h 55m

Directed by Alex Garland

✦ MovieMuse AI takeRefraction sequence visualizes cosmic indifference—nature's mutation becomes beautiful and unknowable rather than explicably monstrous.

A biologist signs up for a dangerous, secret expedition into a mysterious zone where the laws of nature don't apply.

7

The Last Man on Earth (1964)

IMDb 6.7 🍅 80% Letterboxd 3.3 1h 27m

Directed by Ubaldo Ragona

✦ MovieMuse AI takeLast man's vampire transformation inverts apocalypse logic; surviving humanity's extinction demands becoming the thing you hunted.

When a disease turns all of humanity into the living dead, the last man on earth becomes a reluctant vampire hunter.

8

X: The Man with the X-Ray Eyes (1963)

IMDb 6.6 🍅 88% Letterboxd 3.5 1h 19m

Directed by Roger Corman

✦ MovieMuse AI takeEscalating visual distortion mirrors madness; x-ray vision's gift becomes curse as perception itself fractures the mind.

A doctor uses special eye drops to give himself x-ray vision, but the new power has disastrous consequences.

9

Fire in the Sky (1993)

IMDb 6.5 🍅 52% Letterboxd 3.2 1h 49m

Directed by Rob Lieberman

✦ MovieMuse AI takeAbduction as traumatic rupture—the film's evidentiary restraint makes cosmic intrusion more unsettling than any spectacle could.

After clearing brush for the government, a group of men return to town claiming their friend was abducted. Despite no apparent motive or evidence of foul play, no-one believes their story and his disappearance is treated as murder.

10

A Quiet Place: Day One (2024)

IMDb 6.3 🍅 86% Letterboxd 3.1 1h 40m

Directed by Michael Sarnoski

✦ MovieMuse AI takeSound-hunting aliens weaponize silence; soundscape design makes auditory vulnerability more primal than visual monster design.

As New York City is invaded by alien creatures who hunt by sound, a woman named Sam fights to survive with her cat.

11

Night of the Comet (1984)

IMDb 6.3 🍅 79% Letterboxd 3.3 1h 35m

Directed by Thom Eberhardt

✦ MovieMuse AI takePost-apocalyptic valley girls subvert genre demographics; comet extinction permits tonal freedom between camp and genuine survival dread.

After a comet wipes out most of life on Earth, two Valley Girls find themselves fighting against cannibal zombies and a sinister group of scientists.

12

Killer Klowns from Outer Space (1988)

IMDb 6.2 🍅 79% Letterboxd 3.4 1h 26m

Directed by Stephen Chiodo

✦ MovieMuse AI takeAlien clown aesthetic weaponizes childhood comfort against us; cotton candy cocoons make consumption method grotesquely surreal.

Aliens disguised as clowns crash land on Earth in a rural town to capture unsuspecting victims in cotton candy cocoons for later consumption.

13

Lifeforce (1985)

IMDb 6.2 🍅 58% Letterboxd 3.2 1h 42m

Directed by Tobe Hooper

✦ MovieMuse AI takeSpace vampires' contagion chain visualizes infection as erotic; London's collapse becomes sensual apocalypse rather than martial one.

A race of space vampires arrives in London and infects the populace, commencing an apocalyptic descent into chaos.

14

Monkey Shines (1988)

IMDb 6.2 🍅 55% Letterboxd 3.2 1h 53m

Directed by George A. Romero

✦ MovieMuse AI takeAnimal consciousness as sci-fi horror device; primate rage reflects uncontrollable intelligence we've engineered into dependent servitude.

A quadriplegic man is given a trained monkey help him with every day activities, until the little monkey begins to develop feelings, and rage, against its new master and those who get too close to him.

15

Planet of the Vampires (1965)

IMDb 6.2 🍅 71% Letterboxd 3.2 1h 26m

Directed by Mario Bava

✦ MovieMuse AI takePlanetary possession subverts astronaut heroism; crew paranoia proves aliens need no invasion when environment itself turns us against each other.

After landing on a mysterious planet, a team of astronauts begin to turn on each other, swayed by the uncertain influence of the planet and its strange inhabitants.

16

Species (1995)

IMDb 5.9 🍅 42% Letterboxd 2.7 1h 48m

Directed by Roger Donaldson

✦ MovieMuse AI takeVisceral body-horror fusion of human sexuality and alien biology; xenomorphic reproduction as existential threat.

In 1993, the Search for Extra Terrestrial Intelligence Project receives a transmission detailing an alien DNA structure, along with instructions on how to splice it with human DNA. The result is Sil, a sensual but deadly creature who can change from a beautiful woman to an armour-plated killing machine in the blink of an eye.

17

Leviathan (1989)

IMDb 5.8 🍅 23% Letterboxd 2.9 1h 38m

Directed by George P. Cosmatos

✦ MovieMuse AI takeDeep-sea isolation amplifies claustrophobia; ocean-floor creature's shapeshifting mirrors crew's inability to trust their own perceptions.

Underwater deep-sea miners encounter a Soviet wreck and bring back a dangerous cargo to their base on the ocean floor with horrifying results. The crew of the mining base must fight to survive against a genetic mutation that hunts them down one by one.

18

Futureworld (1976)

IMDb 5.7 🍅 31% Letterboxd 2.8 1h 48m

Directed by Richard T. Heffron

✦ MovieMuse AI takeAI consciousness upgrade questions what 'safety' means in artificial worlds; android bodies render corporate control intimate and bodily.

Two years after the Westworld tragedy in the Delos amusement park, the corporate owners have reopened the park following over $1 billion in safety and other improvements. For publicity purposes, reporters Chuck Browning and Tracy Ballard are invited to review the park. Just prior to arriving, however, Browning is given a clue by a dying man that something is amiss.

19

Die, Monster, Die! (1965)

IMDb 5.6 🍅 78% Letterboxd 3.0 1h 20m

Directed by Daniel Haller

✦ MovieMuse AI takeMeteorite mutation cuts through Cold War allegory—cosmic contamination proves nature itself holds horrors beyond ideological conflict.

A young man visits his fiancé's estate to discover that her wheelchair-bound scientist father has discovered a meteorite that emits mutating radiation rays that have turned the plants in his greenhouse to giants. When his own wife falls victim to this mysterious power, the old man takes it upon himself to destroy the glowing object with disastrous results.

20

Invaders from Mars (1986)

IMDb 5.5 🍅 38% Letterboxd 2.9 1h 40m

Directed by Tobe Hooper

✦ MovieMuse AI takeChild protagonist's visibility-invisibility paradox; witnesses become unreliable when adults deny alien invasion as psychological projection.

A boy tries to stop aliens that have taken over his town and are brainwashing its inhabitants.

21

Scream and Scream Again (1970)

IMDb 5.5 🍅 65% Letterboxd 2.7 1h 35m

Directed by Gordon Hessler

✦ MovieMuse AI takeSerial killer as bio-engineered experiment; blood-draining becomes literal depiction of scientific dehumanization into harvested components.

A serial killer who drains his victims for blood is on the loose and London police follow him to a house owned by an eccentric scientist.

22

Strange Invaders (1983)

IMDb 5.4 🍅 67% Letterboxd 2.8 1h 32m

Directed by Michael Laughlin

✦ MovieMuse AI takeSmall-town alien settlement foregrounds domesticity made alien—the ordinary becomes uncanny when pod people inhabit familiar spaces.

Alien beings, who settle in a small midwestern town, are disturbed by a young professor determined to rescue his daughter from their clutches.

23

The Time Travelers (1964)

IMDb 5.3 Letterboxd 2.5 1h 22m

Directed by Ib Melchior

✦ MovieMuse AI takeTime-warp catastrophe offers no escape; accidental future-thrust traps characters in nightmarish world they can't comprehend or flee.

Research scientists experimenting with time warps are accidentally propelled forward into an unbearable future.

24

Zone Troopers (1985)

IMDb 5.3 Letterboxd 2.8 1h 26m

Directed by Danny Bilson

✦ MovieMuse AI takeWWII soldiers versus extraterrestrial enemy collapses military certainty; alien presence erases traditional combat logic.

American soldiers, led by The Sarge, are stuck behind Nazi enemy lines. As they make their way across the Italian countryside, they come across an alien spaceship that has crash-landed in the woods. The alien pilot is dead, but one of the ship's passengers is on the loose. As the GIs hunt down the alien by splitting into smaller groups, they're not only tracked by the Nazis, but also a whole host of other aliens come to save their stranded party.

25

Cyborg (1989)

IMDb 5.1 🍅 22% Letterboxd 2.6 1h 26m

Directed by Albert Pyun

✦ MovieMuse AI takePlague-ravaged futurism grounds sci-fi horror in biological decay; urban ruin becomes character rather than mere backdrop.

A martial artist hunts a killer in a plague-infested urban dump of the future.

26

Devil's Playground (2010)

IMDb 5.1 Letterboxd 2.7 1h 33m

Directed by Mark McQueen

✦ MovieMuse AI takeZombie plague as profit mechanism; mercenary protagonist embodies sci-fi horror's uncomfortable capitalism-meets-contagion nightmare.

As the world succumbs to a zombie apocalypse, Cole - a hardened mercenary - is chasing the one person who can provide a cure. Not only to the plague but to Cole's own incumbent destiny.

27

Supernova (2000)

IMDb 4.9 🍅 11% Letterboxd 2.2 1h 31m

Directed by Walter Hill

✦ MovieMuse AI takeSalvage-crew derelict dread; abandoned ship's atmosphere proves more menacing than any creature reveal within its dark corridors.

Set in the 22nd century, when a battered salvage ship sends out a distress signal, the seasoned crew of the rescue hospital ship Nova-17 responds. What they find is a black hole--that threatens to destroy both ships--and a mysterious survivor whose body quickly mutates into a monstrous and deadly form.

28

Invasion of the Bee Girls (1973)

IMDb 4.9 🍅 44% Letterboxd 2.6 1h 26m

Directed by Denis Sanders

✦ MovieMuse AI takeCosmic sex-death transmitted through women inverts sci-fi conquest fantasy; killer bees literalize misogynist nightmare as actual mechanism.

A powerful cosmic force is turning Earth women into queen bees who kill men by wearing them out sexually.

29

The Rift (1990)

IMDb 4.7 Letterboxd 2.6 1h 22m

Directed by Juan Piquer Simón

✦ MovieMuse AI takeSubmarine claustrophobia amplifies cosmic uncertainty; deep trench isolation mirrors psychological dissolution within metal hull.

An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously disappeared in a submarine rift. Things go awry when they begin to find things that shouldn't be there...

30

Last Woman on Earth (1960)

IMDb 4.7 Letterboxd 2.5 1h 11m

Directed by Roger Corman

✦ MovieMuse AI takePost-apocalyptic survival stripped to primal instinct; isolation weaponizes reproduction anxiety in claustrophobic landscape.

Harold Gern, a shady businessman from New York, is spending a holiday in Puerto Rico with his attractive wife Evelyn. They are joined by Martin Joyce, Harold's lawyer, who has come to discuss the latest indictment. Harold invites him along on a boat trip during which all three try out some newly bought scuba diving equipment. When they resurface, they find out that the world has changed forever.

Best Sci-Fi Horror Movies on MGM+

The Martian (2015)

Night of the Living Dead (1968)

Invasion of the Body Snatchers (1956)

The Return of the Living Dead (1985)

Starman (1984)

Annihilation (2018)

The Last Man on Earth (1964)

X: The Man with the X-Ray Eyes (1963)

Fire in the Sky (1993)

A Quiet Place: Day One (2024)

Night of the Comet (1984)

Killer Klowns from Outer Space (1988)

Lifeforce (1985)

Monkey Shines (1988)

Planet of the Vampires (1965)

Species (1995)

Leviathan (1989)

Futureworld (1976)

Die, Monster, Die! (1965)

Invaders from Mars (1986)

Scream and Scream Again (1970)

Strange Invaders (1983)

The Time Travelers (1964)

Zone Troopers (1985)

Cyborg (1989)

Devil's Playground (2010)

Supernova (2000)

Invasion of the Bee Girls (1973)

The Rift (1990)

Last Woman on Earth (1960)

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