Sci-Fi, US Prime Video ($0.00 with Membership), Exclude Titles I've Seen (Sorted by Popularity Ascending)
3. Star Trek: The Next Generation (1987–1994)
TV-PG | 44 min | Action, Adventure, Mystery
Set almost 100 years after Captain Kirk's five-year mission, a new generation of Starfleet officers set off in the U.S.S. Enterprise-D on their own mission to go where no one has gone before.
4. The Expanse (2015– )
TV-14 | 60 min | Drama, Mystery, Sci-Fi
A police detective in the asteroid belt, the first officer of an interplanetary ice freighter and an earth-bound United Nations executive slowly discover a vast conspiracy that threatens the Earth's rebellious colony on the asteroid belt.
5. The X-Files (1993–2018)
TV-14 | 45 min | Crime, Drama, Mystery
Two F.B.I. Agents, Fox Mulder the believer and Dana Scully the skeptic, investigate the strange and unexplained, while hidden forces work to impede their efforts.
6. The Man in the High Castle (2015– )
TV-MA | 60 min | Drama, Sci-Fi, Thriller
In a dystopian America dominated by Nazi Germany and Imperial Japan, a young woman discovers a mysterious film that may hold the key to toppling the totalitarian regimes.
7. A Quiet Place (2018)
PG-13 | 90 min | Drama, Horror, Sci-Fi
In a post-apocalyptic world, a family is forced to live in silence while hiding from monsters with ultra-sensitive hearing.
Votes: 322,777 | Gross: $188.02M
8. Star Trek: Voyager (1995–2001)
TV-PG | 44 min | Action, Adventure, Sci-Fi
Pulled to the far side of the galaxy, where the Federation is seventy-five years away at maximum warp speed, a Starfleet ship must cooperate with Maquis rebels to find a way home.
9. Star Trek: Deep Space Nine (1993–1999)
TV-PG | 45 min | Action, Adventure, Drama
In the vicinity of the liberated planet of Bajor, the Federation space station Deep Space Nine guards the opening of a stable wormhole to the far side of the galaxy.
11. Tank Girl (1995)
R | 104 min | Action, Comedy, Sci-Fi
A girl is among the few survivors of a dystopian Earth. Riding a war tank, she fights against the tyranny of a mega-corporation that dominates the remaining potable water supply of the planet.
Votes: 28,517 | Gross: $4.06M
12. The Fifth Element (1997)
PG-13 | 126 min | Action, Adventure, Sci-Fi
In the colorful future, a cab driver unwittingly becomes the central figure in the search for a legendary cosmic weapon to keep Evil and Mr. Zorg at bay.
Votes: 408,078 | Gross: $63.54M
14. Annihilation (2018)
R | 115 min | Adventure, Drama, Horror
A biologist signs up for a dangerous, secret expedition into a mysterious zone where the laws of nature don't apply.
Votes: 238,509 | Gross: $32.73M
15. The Terminator (1984)
R | 107 min | Action, Sci-Fi
A seemingly indestructible robot is sent from 2029 to 1984 to assassinate a young waitress, whose unborn son will lead humanity in a war against sentient machines, while a human soldier from the same war is sent to protect her at all costs.
Votes: 740,913 | Gross: $38.40M
16. Star Trek: Enterprise (2001–2005)
TV-PG | 60 min | Action, Adventure, Drama
A century before Captain Kirk's five-year mission, Jonathan Archer captains the United Earth ship Enterprise during the early years of Starfleet, leading up to the Earth-Romulan War and the formation of the Federation.
17. Battlestar Galactica (2004–2009)
TV-14 | 44 min | Action, Adventure, Drama
When an old enemy, the Cylons, resurface and obliterate the 12 colonies, the crew of the aged Galactica protect a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony, Earth.
19. Transformers: The Last Knight (2017)
PG-13 | 154 min | Action, Adventure, Sci-Fi
A deadly threat from Earth's history reappears, and a hunt for a lost artifact takes place between Autobots and Decepticons, while Optimus Prime encounters his creator in space.
Votes: 122,431 | Gross: $130.17M
20. Stargate: Atlantis (2004–2009)
TV-PG | 44 min | Action, Adventure, Drama
An international team of scientists and military personnel discover a Stargate network in the Pegasus Galaxy and come face-to-face with a new, powerful enemy, The Wraith.
21. Downsizing (2017)
R | 135 min | Drama, Sci-Fi
A social satire in which a man realizes he would have a better life if he were to shrink himself to five inches tall, allowing him to live in wealth and splendor.
Votes: 80,239 | Gross: $24.45M
22. Twelve Monkeys (1995)
R | 129 min | Mystery, Sci-Fi, Thriller
In a future world devastated by disease, a convict is sent back in time to gather information about the man-made virus that wiped out most of the human population on the planet.
Votes: 544,572 | Gross: $57.14M
24. Eureka (2006–2012)
TV-14 | 60 min | Adventure, Comedy, Drama
A U.S. Marshall becomes the sheriff of a remote cozy little Northwestern town of Eureka where the best minds in the US have secretly been tucked away to build futuristic inventions for the government which often go disastrously wrong.
25. Iron Man 2 (2010)
PG-13 | 124 min | Action, Adventure, Sci-Fi
With the world now aware of his identity as Iron Man, Tony Stark must contend with both his declining health and a vengeful mad man with ties to his father's legacy.
Votes: 670,711 | Gross: $312.43M
26. Spaceballs (1987)
PG | 96 min | Adventure, Comedy, Sci-Fi
A rogue star pilot and his trusty sidekick must come to the rescue of a Princess and save the galaxy from a ruthless race of beings known as Spaceballs.
Votes: 160,728 | Gross: $38.12M
27. Masters of the Universe (1987)
PG | 106 min | Action, Adventure, Fantasy
The heroic warrior He-Man battles against the evil lord Skeletor and his armies of darkness for control of Castle Grayskull.
Votes: 34,359 | Gross: $17.34M
28. Under the Dome (2013–2015)
TV-14 | 43 min | Drama, Mystery, Sci-Fi
An invisible and mysterious force field descends upon a small actual town of Chester's Mill, Maine, USA, trapping residents inside, cut off from the rest of civilization. The trapped townspeople must discover the secrets and purpose of the "dome" or "sphere" and its origins, while coming to learn more than they ever knew about each other and animals too.
29. The Running Man (1987)
R | 101 min | Action, Sci-Fi, Thriller
A wrongly convicted man must try to survive a public execution gauntlet staged as a game show.
Votes: 132,582 | Gross: $38.12M
30. Babylon 5 (1994–1998)
TV-PG | 45 min | Action, Adventure, Drama
In the mid 23rd Century, the Earth Alliance space station Babylon 5, located in neutral territory, is a major focal point for political intrigue, racial tensions and various wars over the course of five years.
32. District 9 (2009)
R | 112 min | Action, Sci-Fi, Thriller
An extraterrestrial race, forced to live in slum-like conditions on Earth, suddenly finds a kindred spirit in a government agent who is exposed to their biotechnology.
Votes: 609,840 | Gross: $115.65M
33. Hot Tub Time Machine (2010)
R | 101 min | Comedy, Sci-Fi
A malfunctioning time machine at a ski resort takes a man back to 1986 with his two friends and nephew, where they must relive a fateful night and not change anything to make sure the nephew is born.
Votes: 155,281 | Gross: $50.29M
35. Coherence (2013)
Not Rated | 89 min | Horror, Mystery, Sci-Fi
Strange things begin to happen when a group of friends gather for a dinner party on an evening when a comet is passing overhead.
Votes: 91,931 | Gross: $0.07M
36. Hellboy II: The Golden Army (2008)
PG-13 | 120 min | Action, Adventure, Fantasy
The mythical world starts a rebellion against humanity in order to rule the Earth, so Hellboy (Ron Perlman) and his team must save the world from the rebellious creatures.
Votes: 245,026 | Gross: $75.75M
37. Stargate (1994)
PG-13 | 116 min | Action, Adventure, Sci-Fi
An interstellar teleportation device, found in Egypt, leads to a planet with humans resembling ancient Egyptians who worship the god Ra.
Votes: 166,946 | Gross: $71.57M
38. Humans (2015–2018)
TV-14 | 42 min | Drama, Sci-Fi
In a parallel present where the latest must-have gadget for any busy family is a 'Synth' - a highly-developed robotic servant that's so similar to a real human it's transforming the way we live.
41. G.I. Joe: The Rise of Cobra (2009)
PG-13 | 118 min | Action, Adventure, Sci-Fi
An elite military unit comprised of special operatives known as G.I. Joe, operating out of The Pit, takes on an evil organization led by a notorious arms dealer.
Votes: 192,259 | Gross: $152.27M
43. Salvation (2017–2018)
TV-14 | 43 min | Drama, Sci-Fi, Thriller
An MIT grad student and a tech superstar bring a low-level Pentagon official a staggering discovery--that an asteroid is just six months away from colliding with Earth.
44. Godzilla (I) (1998)
PG-13 | 139 min | Action, Sci-Fi, Thriller
A giant, reptilian monster surfaces, leaving destruction in its wake as it strides into New York City. To stop it, an earthworm scientist, his reporter ex-girlfriend, and other unlikely heroes team up to save their city.
Votes: 173,802 | Gross: $136.31M
45. Species (1995)
R | 108 min | Action, Horror, Sci-Fi
A group of scientists try to track down and trap a killer alien seductress before she successfully mates with a human.
Votes: 69,994 | Gross: $60.07M
46. The Wraith (1986)
PG-13 | 93 min | Action, Horror, Romance
After a young man is murdered by a road-racing gang of motor-heads, a mysterious fast-driving spirit descends from the sky to take revenge.
Votes: 13,390 | Gross: $3.50M
48. Night of the Comet (1984)
PG-13 | 95 min | Comedy, Horror, Sci-Fi
A comet wipes out most of life on Earth, leaving two Valley Girls fighting against cannibal zombies and a sinister group of scientists.
Votes: 16,776 | Gross: $14.42M
49. Escape Plan 2: Hades (2018)
R | 96 min | Action, Crime, Mystery
Years after he fought his way out of an inescapable prison, Ray Breslin has organized a new top-notch security force. But when one of his team members goes missing, Breslin must return to the hell he once escaped from.
50. Next (2007)
PG-13 | 96 min | Action, Sci-Fi, Thriller
A Las Vegas magician who can see into the future is pursued by FBI agents seeking to use his abilities to prevent a nuclear terrorist attack.
Votes: 141,417 | Gross: $18.21M