Movies like The Alien Conspiracy: Grey Skies (2003)
The best movies like The Alien Conspiracy: Grey Skies (2003) are Monster Hunters (2020), Blood and Snow (2023) and Dark Light (2019). If The Alien Conspiracy: Grey Skies hooked you with its science fiction and horror, these 30 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedAlien (1979)8.2/10 from 17,124 votes
- NewestOsiris (2025)Released 2025
Monster Hunters (2020)
When an alien prison ship crash lands and unleashes creature after creature in the California desert, they make quick work of the army that tries to stop them. Now, the only hope of stopping the aliens rests with a secret branch of the government specializing in alien weaponry. But with the team untested in actual combat, the battle for Earth will be brutal.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisBlood and Snow (2023)
When researchers rescue a fellow scientist who survived a meteorite strike in the Arctic, they discover she may not be who they think she is. Is she some-how changed?
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisDark Light (2019)
A woman returns to her family home and discovers it to be inhabited by monsters.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisOsiris (2025)
Special Forces commandos on a mission are abducted mid-operation by a mysterious spacecraft. Upon waking aboard, they find themselves prey to a relentless alien race in a fight for survival.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisThe Earth Dies Screaming (1964)
A crack test pilot lands to find the planet has been devastated by unknown forces. There are a few survivors, so he organizes them in a plan to ward off control by a group of killer robots.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisAlien: Romulus (2024)
While scavenging the deep ends of a derelict space station, a group of young space colonizers come face to face with the most terrifying life form in the universe.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Worth the HypeMovies like thisPrometheus (2012)
A team of explorers discover a clue to the origins of mankind on Earth, leading them on a journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisThe Signal (2007)
A horror film told in three parts, from three perspectives, in which a mysterious transmission that turns people into killers invades every cell phone, radio, and television.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
SnoozefestMovies like thisThe Return (2020)
After the death of his father, a brilliant college student returns to his family home where he learns that the horrors from his childhood aren't as dead and gone as he once thought.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisSlash/Back (2022)
In a remote Arctic community, a group of Inuit girls fight off an alien invasion, all while trying to make it to the coolest party in town.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisMargaux (2022)
As a group of seniors celebrate their final college days at a smart house, the house's highly advanced AI system, Margaux, begins to take on a deadly presence of her own. A carefree weekend of partying turns into a dystopian nightmare as they realize Margaux's plans to eliminate her tenants one way or another. Time begins to run out as the group desperately tries to survive and outsmart the smart home.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
SnoozefestMovies like thisDie Alone (2024)
Lost in a world reclaimed by nature and overrun by mysterious creatures, Ethan, a young man with amnesia navigates the dangerous landscape in search of his lost love Emma. His journey takes an unexpected turn when he encounters Mae, a hardened and eccentric survivor. Together, Ethan and Mae face threats both human and otherwise before a fateful encounter with Kai unravels a secret that lies just beyond Ethan's fractured memory.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisExtinction (2015)
And suddenly, overnight, the world came to a halt. Two men, two survivors, one kid, and hatred that separates them. A place forgotten by everyone, including the creatures that inhabit the Earth... until now.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisBooks of Blood (2020)
A journey into uncharted and forbidden territory through three tales tangled in space and time.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisSplinter (2008)
When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisScreamers (1995)
SIRIUS 6B, Year 2078. On a distant mining planet ravaged by a decade of war, scientists have created the perfect weapon: a blade-wielding, self-replicating race of killing devices known as Screamers designed for one purpose only -- to hunt down and destroy all enemy life forms.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisBlood Machines (2020)
An artificial intelligence escapes her spaceship to turn into a female ghost and challenges two blade runners to a galactic chase.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisMass Effect: Paragon Lost (2012)
An untold chapter in the Mass Effect saga, following the early career of Alliance Marine, James Vega, as he leads a squad of elite special forces into battle against a mysterious alien threat known as The Collectors. Stationed at a colony in a remote star system, Vega and his troops must protect the inhabitants from an invasion of the deadly insectoid warriors determined to collect the population for unknown purposes. Soon after the attack, Vega's commanding officer falls in battle, forcing the young officer to embrace the responsibility of leadership for the colony's survival. Having idolized Earth's greatest hero and warrior, Commander Shepard (the central character in the Mass Effect video games), the young and idealistic Vega must now make life and the death decisions that will effect not only the lives of his squad, but the lives of every person in the colony - all of whom he has sworn to protect...
Why it matches: Recommended by TMDB viewers · both science fiction
Popcorn FlickMovies like thisOccupation: Rainfall (2020)
Two years into an intergalactic invasion of Earth, survivors in Sydney, Australia, fight back in a desperate ground war. As casualties mount by the day, the resistance and their unexpected allies, uncover a plot that could see the war come to a decisive end. With the Alien invaders hell-bent on making earth their new home, the race is on to save mankind.
Why it matches: Recommended by TMDB viewers · both science fiction
Popcorn FlickMovies like thisBabylon 5: A Call to Arms (1999)
Allies of the Shadows seek revenge against humanity. This movie sets up the series, "Crusade," the sequel to "Babylon 5."
Why it matches: Recommended by TMDB viewers · both science fiction
Popcorn FlickMovies like thisHunting Grounds (2010)
A group of college students experience the ultimate close encounter of the most ferocious kind in the deserts outside of Roswell, New Mexico in this documentary styled horror film.
Why it matches: Similar story and style · both horror & science fiction
Soon You Will Be Gone and Possibly Eaten (TBA)
Young engaged couple Rob and Sabile head to a secluded mountain resort to take their vows and step into the new chapter of their shared lives. What was planned as a joyous wedding attended by family members takes a different turn when unexpected guests crash the ceremony.
Why it matches: Similar story and style · both horror & science fiction
Slither (2006)
A small town is taken over by an alien plague, turning residents into zombies and all forms of mutant monsters.
Why it matches: Similar story and style · both horror & science fiction
Popcorn FlickMovies like thisAVP: Alien vs. Predator (2004)
When scientists discover something near Antarctica that appears to be a buried Pyramid, they send a research team out to investigate. Little do they know that they are about to step into a hunting ground where Aliens are grown as sport for the Predator race.
Why it matches: Similar story and style · both science fiction & horror
Popcorn FlickMovies like thisAlien (1979)
During its return to the earth, commercial spaceship Nostromo intercepts a distress signal from a distant planet. When a three-member team of the crew discovers a chamber containing thousands of eggs on the planet, a creature inside one of the eggs attacks an explorer. The entire crew is unaware of the impending nightmare set to descend upon them when the alien parasite planted inside its unfortunate host is birthed.
Why it matches: Similar story and style · both horror & science fiction
Absolute CinemaMovies like thisPlan 9 from Outer Space (1957)
In California, an old man grieves the loss of his wife, and dies the day after she is buried. However, the space soldier Eros and his mate Tanna use an electric device to resurrect them both, alongside the strong Inspector Clay, who was murdered by the alien-controlled dead couple. When the populations of Hollywood and Washington D.C. see flying saucers on the sky, a colonel, a police lieutenant, a commercial pilot, his wife, and a policeman try to stop the aliens.
Why it matches: Similar story and style · both science fiction & horror
SnoozefestMovies like thisThe X-Files: I Want to Believe (2008)
Mulder and Scully are called back to duty by the FBI when a former priest claims to be receiving psychic visions pertaining to a kidnapped agent.
Why it matches: Similar story and style · both science fiction
SnoozefestMovies like thisTreasure Planet (2002)
When space galleon cabin boy Jim Hawkins discovers a map to an intergalactic "loot of a thousand worlds," a cyborg cook named John Silver teaches him to battle supernovas and space storms on their journey to find treasure.
Why it matches: Similar story and style · both science fiction
Worth the HypeMovies like thisA.I. Artificial Intelligence (2001)
David, a robotic boy—the first of his kind programmed to love—is adopted as a test case by a Cybertronics employee and his wife. Though he gradually becomes their child, a series of unexpected circumstances make this life impossible for David.
Why it matches: Similar story and style · both science fiction
Worth the HypeMovies like thisJerusalem (2003)
Jerusalem is the first of four videos (followed by Sublimation [2003], Conjunction [2003] and The Pearl [2004]) exploring inter-dimensional travel. In this inaugural episode a group of young actors inhabit an empty apartment, their behavior taped and edited in-camera. An analog solarization technique captures their rituals of improvised dance, frozen poses and trimming of hair. Each cast member recounts painful personal life episodes that unfold like cheap sci-fi stories of otherworldly abductions, familial vanishings, strange dreams and reptilian passions.
Why it matches: Similar story and style · both science fiction
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Frequently asked questions
What are the best movies like The Alien Conspiracy: Grey Skies?
The closest matches to The Alien Conspiracy: Grey Skies are Monster Hunters (2020), Blood and Snow (2023) and Dark Light (2019). Below are 27 more, each with the reason it matches.
What should I watch after The Alien Conspiracy: Grey Skies?
Start with Monster Hunters (2020), the closest match to The Alien Conspiracy: Grey Skies.
What is the highest-rated movie like The Alien Conspiracy: Grey Skies?
Alien (1979), rated 8.2/10 by 17,124 TMDB users.
What is the newest movie like The Alien Conspiracy: Grey Skies?
Osiris (2025) is the most recent release on this list.
Are there English movies like The Alien Conspiracy: Grey Skies?
Yes: Monster Hunters (2020), Blood and Snow (2023) and Dark Light (2019).
How are movies similar to The Alien Conspiracy: Grey Skies chosen?
First come films that Trakt’s viewers watch alongside The Alien Conspiracy: Grey Skies, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.