Entertainment
1.4k voters

The Scariest Sci-Fi Movies Rated R

Updated March 12, 2021 16.2k votes 1.4k voters 53.4k views148 items

List RulesAdd your favorite movie to the list if it's missing, but only if it's the correct rating.

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.

list.itemsDescription

...more
  • 1
    560
    81

    Alien

    Sigourney Weaver, John Hurt

    More Alien 

    50 Surprising Facts You Didn't Know About AlienThe Best 1950s Alien Movies

  • 2
    559
    82

    The Thing

    Kurt Russell, Keith David

    More The Thing 

    #42 of 63 Movies You Wish You Could Still Watch for the First Time#16 of 73 The Greatest Movies To Watch Outside

  • 3
    484
    78

    Aliens

    Sigourney Weaver, Bill Paxton

    More Aliens 

    #175 of 1,184 Every Oscar Winning Film Ever#1 of 105 The Best Horror Movie Sequels

  • 4
    358
    109

    Predator

    Arnold Schwarzenegger, Jesse Ventura

    More Predator 

    Somehow, Making Predator Was WAY More Insane Than The Actual Movie#4 of 26 The Best F-Bombs In Movie History

  • 5
    378
    127

    Event Horizon

    Laurence Fishburne, Jason Isaacs

    More Event Horizon 

    The Production Of 'Event Horizon' Was Its Own Level Of Hell#1 of 9 Alternate Cuts Of Horror Films We're Dying To See

  • 6
    234
    58

    The Terminator

    Arnold Schwarzenegger, Bill Paxton

    More The Terminator 

    56 Things You Didn't Know About the Terminator Movies#16 of 375 'Old' Movies Every Young Person Needs To Watch In Their Lifetime

  • 7
    271
    119

    28 Days Later

    Cillian Murphy, Christopher Eccleston

    More 28 Days Later 

    #1 of 47 The Best Horror Movies About Virus Outbreaks#12 of 20 Horror Movies That Originally Had Much Darker Endings

  • 8
    251
    110

    Terminator 2: Judgment Day

    Arnold Schwarzenegger, Edward Furlong

    More Terminator 2: Judgment Day 

    #10 of 50 The 50 Highest Grossing '90s Movies, Ranked#40 of 549 The Greatest Epic Movies Ever Made

  • 9
    184
    79

    The Mist

    Thomas Jane, Marcia Gay Harden

    More The Mist 

    #264 of 370 The Best Movies Based On Books#3 of 12 Movie Endings That Are Better Than The Books They Were Based On

  • 10
    215
    107

    The Fly

    Geena Davis, Jeff Goldblum

    More The Fly 

    #9 of 136 The Scariest Animal Horror Movies Ever Made#1028 of 1,139 The Absolute Funniest Movies Of All Time

  • 11
    140
    56

    Invasion of the Body Snatchers

    Robert Duvall, Jeff Goldblum

    More Invasion of the Body Snatchers 

    #32 of 54 The Best Movies Where the Bad Guy Wins#35 of 552 The Best '70s Movies

  • 12
    157
    70

    Pitch Black

    Vin Diesel, Radha Mitchell

    More Pitch Black 

    #183 of 451 The Best Movies For Guys#16 of 25 Great Movies About Very Dark Heroes

  • 13
    124
    50

    A Quiet Place

    John Krasinski, Emily Blunt

    More A Quiet Place 

    14 Behind-The-Scenes Stories From 'A Quiet Place' That You've Never Heard Of#32 of 122 The Best Intelligent Horror Movies

  • 14
    208
    121

    Pandorum

    Dennis Quaid, Norman Reedus
  • 15
    143
    76

    The Evil Dead

    Bruce Campbell, Sam Raimi

    More The Evil Dead 

    #15 of 713 The Best Horror Movies Of All Time#11 of 88 The Goriest Movies Ever Made

  • 16
    119
    60

    12 Monkeys

    Brad Pitt, Bruce Willis

    More 12 Monkeys 

    Behind-The-Scenes Stories From '12 Monkeys'#9 of 106 The Best Movies About Disease Outbreaks

  • 17
    153
    88

    The Thing

    Mary Elizabeth Winstead, Eric Christian Olsen

    More The Thing 

    #59 of 186 The Best Alien Movies Ever Made#9 of 57 The Best Alien Horror Movies Ever Made

  • 18
    107
    54

    Dark City

    Jennifer Connelly, Kiefer Sutherland

    More Dark City 

    #161 of 230 The Best Psychological Thrillers of All Time#38 of 180 The Best Dystopian And Near Future Movies

  • 19
    126
    75

    Ex Machina

    Domhnall Gleeson, Alicia Vikander

    More Ex Machina 

    #231 of 541 The Greatest Guilty Pleasure Movies#113 of 158 The Best and Scariest Psychological Thrillers of All Time

  • 20
    197
    137

    Prometheus

    Charlize Theron, Michael Fassbender

    More Prometheus 

    The Best Characters in the Whole Alien Franchise, Ranked#11 of 15 The 15 Most Inaccurate Science Fiction Movies Of All Time

  • 21
    143
    91

    District 9

    Sharlto Copley, Jed Brophy

    More District 9 

    #71 of 172 The Most Utterly Depressing Movies Ever Made#24 of 112 Movies That Need Sequels

  • 22
    97
    52

    The Blob

    Erika Eleniak, Shawnee Smith

    More The Blob 

    #32 of 69 The Best Horror Movie Remakes#5 of 13 Movies Where The Horror Starts When Someone Touches A Forbidden Object

  • 23
    80
    40

    Fire in the Sky

    James Garner, Robert Patrick

    More Fire in the Sky 

    #111 of 139 The Best Movies You Never Want to Watch Again#98 of 318 The Greatest Disaster Movies of All Time

  • 24
    131
    93

    Annihilation

    Natalie Portman, Jennifer Jason Leigh

    More Annihilation 

    #36 of 115 The Best Movies to Watch on Mushrooms#70 of 100 The 95+ Greatest Dystopian Action Movies

  • 25
    75
    40

    The Crazies

    Danielle Panabaker, Timothy Olyphant

    More The Crazies 

    #28 of 85 The Best Teen Slasher Movies#13 of 144 The Best Zombie Movies Of All Time