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The Scariest Sci-Fi Movies Rated R

Updated November 6, 2020 17.2k votes 1.4k voters 53.0k 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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  • The Thing1
    594
    85

    The Thing

    Kurt Russell, Keith David

    Released1982

    Directed byJohn Carpenter

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  • Alien2
    596
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    Alien

    Sigourney Weaver, John Hurt

    Released1979

    Directed byRidley Scott

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  • Aliens3
    513
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    Sigourney Weaver, Bill Paxton

    Released1986

    Directed byJames Cameron

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    381
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    Predator

    Arnold Schwarzenegger, Jesse Ventura

    Released1987

    Directed byJohn McTiernan

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  • Event Horizon5
    402
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    Laurence Fishburne, Jason Isaacs

    Released1997

    Directed byPaul W. S. Anderson

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    246
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    The Terminator

    Arnold Schwarzenegger, Bill Paxton

    Released1984

    Directed byJames Cameron

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  • 28 Days Later7
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    Cillian Murphy, Christopher Eccleston

    Released2002

    Directed byDanny Boyle

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  • Terminator 2: Judgment Day8
    265
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    Arnold Schwarzenegger, Edward Furlong

    Released1991

    Directed byJames Cameron

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  • The Mist9
    196
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    Thomas Jane, Marcia Gay Harden

    Released2007

    Directed byFrank Darabont

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    232
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    Geena Davis, Jeff Goldblum

    Released1986

    Directed byDavid Cronenberg

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    168
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    Vin Diesel, Radha Mitchell

    Released2000

    Directed byDavid Twohy

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    149
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    Invasion of the Body Snatchers

    Robert Duvall, Jeff Goldblum

    Released1978

    Directed byPhilip Kaufman

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    133
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    A Quiet Place

    John Krasinski, Emily Blunt

    Released2018

    Directed byJohn Krasinski

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  • Pandorum14
    223
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    Pandorum

    Dennis Quaid, Norman Reedus

    Released2009

    Directed byChristian Alvart

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  • The Evil Dead15
    149
    81

    The Evil Dead

    Bruce Campbell, Sam Raimi

    Released1981

    Directed bySam Raimi

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  • The Thing16
    163
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    The Thing

    Mary Elizabeth Winstead, Eric Christian Olsen

    Released2011

    Directed byMatthijs van Heijningen, Jr.

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  • 12 Monkeys17
    125
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    12 Monkeys

    Brad Pitt, Bruce Willis

    Released1995

    Directed byTerry Gilliam

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  • Dark City18
    114
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    Dark City

    Jennifer Connelly, Kiefer Sutherland

    Released1998

    Directed byAlex Proyas

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  • Ex Machina19
    132
    79

    Ex Machina

    Domhnall Gleeson, Alicia Vikander

    Released2015

    Directed byAlex Garland

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  • Prometheus20
    209
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    Prometheus

    Charlize Theron, Michael Fassbender

    Released2012

    Directed byRidley Scott

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    150
    98

    District 9

    Sharlto Copley, Jed Brophy

    Released2009

    Directed byNeill Blomkamp

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  • Fire in the Sky22
    85
    42

    Fire in the Sky

    James Garner, Robert Patrick

    Released1993

    Directed byRon Lieberman

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  • The Blob23
    100
    57

    The Blob

    Erika Eleniak, Shawnee Smith

    Released1988

    Directed byChuck Russell

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    80
    41

    The Crazies

    Danielle Panabaker, Timothy Olyphant

    Released2010

    Directed byBreck Eisner

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  • Annihilation25
    141
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    Annihilation

    Natalie Portman, Jennifer Jason Leigh

    Released2018

    Directed byAlex Garland

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