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1.4k voters

The Scariest Sci-Fi Movies Rated R

Updated November 6, 2020 16.5k votes 1.4k voters 53.2k views146 items

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Here is a list of R-Rated sci-fi horror movies, ranked from best to worst with movie trailers when available. This list takes the best R-Rated sci-fi horror movies and compares them to one another other to see once and for all what the greatest R-Rated Sci-Fi horror movie of all time is. This list of popular R-Rated sci-fi horror movies includes information like who directed the film, when it was released and which actors starred in the movie. If you think the top R-Rated Sci-Fi horror movie isn't as high as it should be then be sure to vote it up so it can take its rightful place among the other great R-Rated Sci-Fi horror films on this list. If you're trying to find a specific R-Rated Sci-Fi horror film you can search this list and filter to find what you're looking for.

The list you're viewing is made up of many different movies, including Aliens and 28 Days Later.

If you're trying to find out "What are the best R-Rated sci-fi horror movies?" and "What are the most famous R-Rated sci-fi horror movies?" then this list is the perfect resource for you.

Use this list if you're looking for some new sci-fi horror movies that are rated R. Between Netflix, Hulu and other services there are thousands of great sci-fi horror movies rated R, so get out there and start watching.

Re-rank this list to fit your opinions, the share it with your friends, to find out how they would rank it via votes.

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82
The Thing
Kurt Russell, Keith David
Released: 1982
Directed by: John Carpenter
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2
572
84
Alien
Sigourney Weaver, John Hurt
Released: 1979
Directed by: Ridley Scott
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3
496
81
Aliens
Sigourney Weaver, Bill Paxton
Released: 1986
Directed by: James Cameron
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4
364
112
Predator
Arnold Schwarzenegger, Jesse Ventura
Released: 1987
Directed by: John McTiernan
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5
385
131
Event Horizon
Laurence Fishburne, Jason Isaacs
Released: 1997
Directed by: Paul W. S. Anderson
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The Production Of Event Horizon Was Its Own Level Of Hell#10 of 27 27 Films Stephen King Has Awarded His Personal Stamp Of Approval
6
238
59
The Terminator
Arnold Schwarzenegger, Bill Paxton
Released: 1984
Directed by: James Cameron
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7
274
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28 Days Later
Cillian Murphy, Christopher Eccleston
Released: 2002
Directed by: Danny Boyle
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8
256
112
Terminator 2: Judgment Day
Arnold Schwarzenegger, Edward Furlong
Released: 1991
Directed by: James Cameron
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#103 of 1,189 Every Oscar Winning Film Ever#50 of 557 The Greatest Film Scores of All Time
9
187
79
The Mist
Thomas Jane, Marcia Gay Harden
Released: 2007
Directed by: Frank Darabont
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10
219
107
The Fly
Geena Davis, Jeff Goldblum
Released: 1986
Directed by: David Cronenberg
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#9 of 136 The Scariest Animal Horror Movies Ever Made#1014 of 1,137 The Absolute Funniest Movies Of All Time
11
143
58
Invasion of the Body Snatchers
Robert Duvall, Jeff Goldblum
Released: 1978
Directed by: Philip Kaufman
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12
159
71
Pitch Black
Vin Diesel, Radha Mitchell
Released: 2000
Directed by: David Twohy
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#16 of 64 The Scariest Giant Monster Movies#16 of 25 Great Movies About Very Dark Heroes
13
127
50
A Quiet Place
John Krasinski, Emily Blunt
Released: 2018
Directed by: John Krasinski
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14
213
123
Pandorum
Dennis Quaid, Norman Reedus
Released: 2009
Directed by: Christian Alvart
15
145
77
The Evil Dead
Bruce Campbell, Sam Raimi
Released: 1981
Directed by: Sam Raimi
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16
121
61
12 Monkeys
Brad Pitt, Bruce Willis
Released: 1995
Directed by: Terry Gilliam
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17
155
91
The Thing
Mary Elizabeth Winstead, Eric Christian Olsen
Released: 2011
Directed by: Matthijs van Heijningen, Jr.
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18
110
54
Dark City
Jennifer Connelly, Kiefer Sutherland
Released: 1998
Directed by: Alex Proyas
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#159 of 230 The Best Psychological Thrillers of All Time#71 of 167 The Best Science Fiction Action Movies
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Ex Machina
Domhnall Gleeson, Alicia Vikander
Released: 2015
Directed by: Alex Garland
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20
199
141
Prometheus
Charlize Theron, Michael Fassbender
Released: 2012
Directed by: Ridley Scott
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21
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District 9
Sharlto Copley, Jed Brophy
Released: 2009
Directed by: Neill Blomkamp
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#68 of 170 The Most Utterly Depressing Movies Ever Made#24 of 112 Movies That Need Sequels
22
98
53
The Blob
Erika Eleniak, Shawnee Smith
Released: 1988
Directed by: Chuck Russell
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23
81
40
Fire in the Sky
James Garner, Robert Patrick
Released: 1993
Directed by: Ron Lieberman
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#103 of 134 The Best Movies You Never Want to Watch Again#19 of 57 The Best Alien Horror Movies Ever Made

24
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Donnie Darko
Drew Barrymore, Ashley Tisdale
Released: 2001
Directed by: Richard Kelly
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#26 of 35 Rainy Day Horror Movies You Can Watch Again And Again#15 of 126 The Greatest Directorial Debuts Of All Time
25
76
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The Crazies
Danielle Panabaker, Timothy Olyphant
Released: 2010
Directed by: Breck Eisner
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