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The Scariest Sci-Fi Movies Rated R

Updated April 20, 2020 17.0k votes 1.3k voters 52.7k views146 items

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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 pits them against each 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.

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  • 1
    The Thing is listed (or ranked) 1 on the list The Scariest Sci-Fi Movies Rated R
    590
    84

    The Thing

    Kurt Russell, Keith David

    Released1982

    Directed byJohn Carpenter

    The Thing is a 1982 American science fiction horror film directed by John Carpenter, written... more on Wikipediaamazon buy button
  • 2
    Alien is listed (or ranked) 2 on the list The Scariest Sci-Fi Movies Rated R
    590
    85

    Alien

    Sigourney Weaver, John Hurt

    Released1979

    Directed byRidley Scott

    Alien is a 1979 science fiction horror film directed by Ridley Scott. The crew of the... more on Wikipediaamazon buy button

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  • 3
    Aliens is listed (or ranked) 3 on the list The Scariest Sci-Fi Movies Rated R
    508
    84

    Aliens

    Sigourney Weaver, Bill Paxton

    Released1986

    Directed byJames Cameron

    Aliens is a 1986 American science-fiction action horror film written and directed by James... more on Wikipediaamazon buy button
  • 4
    Predator is listed (or ranked) 4 on the list The Scariest Sci-Fi Movies Rated R
    375
    118

    Predator

    Arnold Schwarzenegger, Jesse Ventura

    Released1987

    Directed byJohn McTiernan

    Predator is a 1987 American science fiction action film directed by John McTiernan and was... more on Wikipediaamazon buy button

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  • 5
    Event Horizon is listed (or ranked) 5 on the list The Scariest Sci-Fi Movies Rated R
    392
    134

    Event Horizon

    Laurence Fishburne, Jason Isaacs

    Released1997

    Directed byPaul W. S. Anderson

    Event Horizon is a 1997 British-American science fiction horror film. The screenplay was... more on Wikipediaamazon buy button
  • 6
    The Terminator is listed (or ranked) 6 on the list The Scariest Sci-Fi Movies Rated R
    242
    62

    The Terminator

    Arnold Schwarzenegger, Bill Paxton

    Released1984

    Directed byJames Cameron

    The Terminator is a 1984 American science fiction/horror action film directed by James... more on Wikipediaamazon buy button

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  • 7
    28 Days Later is listed (or ranked) 7 on the list The Scariest Sci-Fi Movies Rated R
    284
    126

    28 Days Later

    Cillian Murphy, Christopher Eccleston

    Released2002

    Directed byDanny Boyle

    28 Days Later is a 2002 British post-apocalyptic horror film directed by Danny Boyle. The... more on Wikipediaamazon buy button
  • 8
    Terminator 2: Judgment Day is listed (or ranked) 8 on the list The Scariest Sci-Fi Movies Rated R
    260
    114

    Terminator 2: Judgment Day

    Arnold Schwarzenegger, Edward Furlong

    Released1991

    Directed byJames Cameron

    Terminator 2: Judgment Day is a 1991 American science fiction action thriller film written,... more on Wikipediaamazon buy button

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  • 9
    The Mist is listed (or ranked) 9 on the list The Scariest Sci-Fi Movies Rated R
    193
    80

    The Mist

    Thomas Jane, Marcia Gay Harden

    Released2007

    Directed byFrank Darabont

    The Mist is a 2007 American science fiction horror film directed by Frank Darabont, and based... more on Wikipediaamazon buy button

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  • 10
    The Fly is listed (or ranked) 10 on the list The Scariest Sci-Fi Movies Rated R
    227
    110

    The Fly

    Geena Davis, Jeff Goldblum

    Released1986

    Directed byDavid Cronenberg

    The Fly is a 1986 American science fiction horror film directed and co-written by David... more on Wikipediaamazon buy button
  • 11
    Invasion of the Body Snatchers is listed (or ranked) 11 on the list The Scariest Sci-Fi Movies Rated R
    148
    59

    Invasion of the Body Snatchers

    Robert Duvall, Jeff Goldblum

    Released1978

    Directed byPhilip Kaufman

    Invasion of the Body Snatchers is a 1978 science fiction thriller directed by Philip Kaufman,... more on Wikipediaamazon buy button
  • 12
    Pitch Black is listed (or ranked) 12 on the list The Scariest Sci-Fi Movies Rated R
    165
    71

    Pitch Black

    Vin Diesel, Radha Mitchell

    Released2000

    Directed byDavid Twohy

    Pitch Black is a 2000 science fiction horror film co-written and directed by David Twohy. The... more on Wikipediaamazon buy button
  • 13
    A Quiet Place is listed (or ranked) 13 on the list The Scariest Sci-Fi Movies Rated R
    127
    52

    A Quiet Place

    John Krasinski, Emily Blunt

    Released2018

    Directed byJohn Krasinski

    A Quiet Place is a 2018 American supernatural horror film directed by John Krasinski. A family... more on Wikipediaamazon buy button

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  • 14
    Pandorum is listed (or ranked) 14 on the list The Scariest Sci-Fi Movies Rated R
    219
    126

    Pandorum

    Dennis Quaid, Norman Reedus

    Released2009

    Directed byChristian Alvart

    Pandorum is a German-British 2009 post-apocalyptic science fiction film, with elements of... more on Wikipediaamazon buy button
  • 15
    The Evil Dead is listed (or ranked) 15 on the list The Scariest Sci-Fi Movies Rated R
    146
    80

    The Evil Dead

    Bruce Campbell, Sam Raimi

    Released1981

    Directed bySam Raimi

    This film is a 1981 American horror film written and directed by Sam Raimi and executive... more on Wikipediaamazon buy button

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  • 16
    12 Monkeys is listed (or ranked) 16 on the list The Scariest Sci-Fi Movies Rated R
    122
    61

    12 Monkeys

    Brad Pitt, Bruce Willis

    Released1995

    Directed byTerry Gilliam

    12 Monkeys, also known as Twelve Monkeys, is a 1995 American science fiction film directed by... more on Wikipediaamazon buy button

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  • 17
    The Thing is listed (or ranked) 17 on the list The Scariest Sci-Fi Movies Rated R
    157
    94

    The Thing

    Mary Elizabeth Winstead, Eric Christian Olsen

    Released2011

    Directed byMatthijs van Heijningen, Jr.

    The Thing is a 2011 science fiction horror film directed by Matthijs van Heijningen Jr. and... more on Wikipediaamazon buy button

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  • 18
    Dark City is listed (or ranked) 18 on the list The Scariest Sci-Fi Movies Rated R
    110
    56

    Dark City

    Jennifer Connelly, Kiefer Sutherland

    Released1998

    Directed byAlex Proyas

    Dark City is a 1998 neo-noir science fiction film directed by Alex Proyas. The screenplay was... more on Wikipediaamazon buy button

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  • 19
    Ex Machina is listed (or ranked) 19 on the list The Scariest Sci-Fi Movies Rated R
    128
    76

    Ex Machina

    Domhnall Gleeson, Alicia Vikander

    Released2015

    Directed byAlex Garland

    Ex Machina is a 2015 independent science fiction psychological thriller film directed by Alex... more on Wikipediaamazon buy button
  • 20
    Prometheus is listed (or ranked) 20 on the list The Scariest Sci-Fi Movies Rated R
    203
    144

    Prometheus

    Charlize Theron, Michael Fassbender

    Released2012

    Directed byRidley Scott

    Prometheus is a 2012 science fiction film directed by Ridley Scott, written by Jon Spaihts and... more on Wikipediaamazon buy button
  • 21
    District 9 is listed (or ranked) 21 on the list The Scariest Sci-Fi Movies Rated R
    145
    94

    District 9

    Sharlto Copley, Jed Brophy

    Released2009

    Directed byNeill Blomkamp

    District 9 is a 2009 science fiction film directed by Neill Blomkamp, released August 13,... more on Wikipediaamazon buy button
  • 22
    Fire in the Sky is listed (or ranked) 22 on the list The Scariest Sci-Fi Movies Rated R
    85
    41

    Fire in the Sky

    James Garner, Robert Patrick

    Released1993

    Directed byRon Lieberman

    This film is a 1993 science fiction horror drama film based on an alleged extraterrestrial... more on Wikipediaamazon buy button

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  • 23
    The Blob is listed (or ranked) 23 on the list The Scariest Sci-Fi Movies Rated R
    100
    55

    The Blob

    Erika Eleniak, Shawnee Smith

    Released1988

    Directed byChuck Russell

    The Blob is a 1988 monster horror film written by Chuck Russell and Frank Darabont, and... more on Wikipediaamazon buy button
  • 24
    The Crazies is listed (or ranked) 24 on the list The Scariest Sci-Fi Movies Rated R
    78
    40

    The Crazies

    Danielle Panabaker, Timothy Olyphant

    Released2010

    Directed byBreck Eisner

    The Crazies is a 2010 American horror film directed by Breck Eisner, with a screenplay by... more on Wikipediaamazon buy button

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  • 25
    Annihilation is listed (or ranked) 25 on the list The Scariest Sci-Fi Movies Rated R
    136
    94

    Annihilation

    Natalie Portman, Jennifer Jason Leigh

    Released2018

    Directed byAlex Garland

    Annihilation is a 2018 science fantasy action horror film directed by Alex Garland, based on... more on Wikipediaamazon buy button
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