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The Scariest Sci-Fi Movies Rated R 

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Updated February 15, 2020 12.1k votes 1.1k voters 48.2k views 143 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.

Re-rank this list to fit your opinions, the share it with your friends, to find out how they would rank it via votes. (143 items)

What kind of directors have worked on R Sci-Fi Horror movies in the past? James Cameron and Ridley Scott both have, as have other great directors.

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26
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daniel.vonstein added Danielle Panabaker, Timothy Olyphant, Radha Mitchell

Released: 2010

Directed by: Breck Eisner

The Crazies is a 2010 American horror film directed by Breck Eisner, with a screenplay by Scott Kosar and Ray Wright. The film is a remake of the 1973 film of the same name by George A. Romero, ...more
27
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abyx added Sigourney Weaver, Charles Dance, Paul McGann

Released: 1992

Directed by: David Fincher

Alien 3 is a 1992 American science-fiction horror film and the debut feature film of director David Fincher. The film is the third installment of the Alien film series. The film takes place ...more
28
The Void is listed (or ranked) 28 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Aaron

Released: 2017

Directed by: Jeremy Gillespie

Shortly after delivering a patient to an understaffed hospital, a police officer experiences strange and violent occurrences seemingly linked to a group of mysterious hooded figures.

The Void is a 2001 American direct-to-DVD science-fiction thriller film which follows a scientist who has discovered that a man who's been attempting to solve an energy crisis has inadvertently ...more
29
Upgrade is listed (or ranked) 29 on the list The Scariest Sci-Fi Movies Rated R
Dan von Stein added Logan Marshall-Green, Betty Gabriel, Harrison Gilbertson

Released: 2018

Directed by: Leigh Whannell

Upgrade is a 2018 Australian science fiction action horror film directed by Leigh Whannell. A self-identified technophobe (Logan Marshall-Green) in a near-future world uses an experimental ...more
30
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abyx added Erika Eleniak, Shawnee Smith, Julie McCullough

Released: 1988

Directed by: Chuck Russell

The Blob is a 1988 monster horror film written by Chuck Russell and Frank Darabont, and directed by Russell. It stars Kevin Dillon, Shawnee Smith, Donovan Leitch, Jeffrey DeMunn, Candy Clark and ...more
31
Life is listed (or ranked) 31 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Jake Gyllenhaal, Rebecca Ferguson, Olga Dihovichnaya

Directed by: Daniel Espinosa

Life is a 2017 science fiction horror thriller film directed by Daniel Espinosa. The film stars Jake Gyllenhaal, Rebecca Ferguson, Olga Dihovichnaya, Ariyon Bakare, Hiroyuki Sanada and Ryan ...more
32
Predators is listed (or ranked) 32 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Topher Grace, Laurence Fishburne, Adrien Brody

Released: 2010

Directed by: Nimród Antal

Predators is a 2010 American science fiction action film directed by Nimród Antal and starring Adrien Brody, Topher Grace, Alice Braga, Walton Goggins, Laurence Fishburne, Danny Trejo, ...more
33
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abyx added Elizabeth Banks, Jenna Fischer, Rob Zombie

Released: 2006

Directed by: James Gunn

Slither is a 2006 American science fiction-comedy horror film written and directed by James Gunn in his directorial debut, and starring Nathan Fillion, Elizabeth Banks, Gregg Henry, and Michael ...more
34
Jacob's Ladder is listed (or ranked) 34 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Macaulay Culkin, Tim Robbins, Jason Alexander

Released: 1990

Directed by: Adrian Lyne

Jacob's Ladder is a 1990 American psychological horror film directed by Adrian Lyne, written and produced by Bruce Joel Rubin and starring Tim Robbins, Elizabeth Peña and Danny Aiello. ...more
35
Predator 2 is listed (or ranked) 35 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Gary Busey, Bill Paxton, Danny Glover

Released: 1990

Directed by: Stephen Hopkins

Predator 2 is a 1990 American science fiction action horror film written by Jim and John Thomas, directed by Stephen Hopkins, and starring Danny Glover and Kevin Peter Hall. The film is a sequel ...more
36
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Rose Byrne, Idris Elba, Jeremy Renner

Released: 2007

Directed by: Juan Carlos Fresnadillo

28 Weeks Later is a 2007 British-Spanish post-apocalyptic science fiction horror film, structured as a sequel to the 2002 critical and commercial success, 28 Days Later. 28 Weeks Later was ...more
37
Alien: Covenant is listed (or ranked) 37 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Alien: Covenant Michael Fassbender, Katherine Waterston, Billy Crudup

Released: 2017

Directed by: Ridley Scott

Alien: Covenant is a 2017 science fiction horror film directed by Ridley Scott, and the sixth film in the Alien film series. The crew of a colony ship, bound for a remote planet, discover an ...more
38
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Barbara Crampton, Jeffrey Combs, David Gale

Released: 1985

Directed by: Stuart Gordon

Re-Animator is a 1985 American science fiction horror comedy film loosely based on the H. P. Lovecraft episodic novella "Herbert West–Reanimator." Directed by Stuart Gordon, it was the ...more
39
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abyx added Josh Brolin, Mira Sorvino, Norman Reedus

Released: 1997

Directed by: Guillermo del Toro

Mimic is an American 1997 science fiction horror film co-written and directed by Guillermo del Toro, based on a short story of the same name by Donald A. Wollheim. Del Toro was unhappy with the ...more
40
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JohnTurner added Barbara Crampton, Jeffrey Combs, Ken Foree

Released: 1986

Directed by: Stuart Gordon

From Beyond is a 1986 American science fiction-body horror film directed by Stuart Gordon, loosely based on the short story of the same name by H. P. Lovecraft. It was written by Dennis Paoli, ...more
41
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Salma Hayek, Usher, Famke Janssen

Released: 1998

Directed by: Robert Rodriguez

The Faculty is a 1998 science fiction horror film written by Kevin Williamson and directed by Robert Rodriguez. The film stars Josh Hartnett, Elijah Wood, Shawn Hatosy, Jordana Brewster, Clea ...more
42
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Richard777 added Doug Bradley, Ashley Laurence, Kenneth Cranham

Released: 1988

Directed by: Tony Randel

Hellbound: Hellraiser II is a 1988 British-American horror film directed by Tony Randel. It draws heavily upon, and was made by much of the same cast and crew as its precursor, Hellraiser.
43
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Famke Janssen, Djimon Hounsou, Jason Flemyng

Released: 1998

Directed by: Stephen Sommers

Deep Rising is a 1998 American action horror film directed by Stephen Sommers and starring Treat Williams, Famke Janssen and Anthony Heald. It was distributed by Hollywood Pictures and Cinergi ...more
44
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abyx added Peter Weller, Ernie Hudson, Daniel Stern

Released: 1989

Directed by: George P. Cosmatos

Leviathan is a 1989 science fiction horror film about a hideous creature and a group of people in a sealed environment, in a similar vein to such films as Alien and The Thing. It is one of many ...more
45
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abyx added Billy Zane, Dee Wallace, M. Emmet Walsh

Released: 1986

Critters is a 1986 cult comedy horror science fiction film starring Dee Wallace-Stone, M. Emmet Walsh, Billy Green Bush and Scott Grimes. It was the directorial debut of Stephen Herek who ...more
46
The Last Days on Mars is listed (or ranked) 46 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Liev Schreiber, Olivia Williams, Romola Garai

Released: 2013

Directed by: Ruairí Robinson

The Last Days on Mars is a 2013 science fiction-horror film directed by Ruairí Robinson with a screenplay by Clive Dawson, based on the short story "The Animators" by Sydney J. ...more
47
3022 is listed (or ranked) 47 on the list The Scariest Sci-Fi Movies Rated R
Miranda Cosgrove, Kate Walsh, Omar Epps

Released: 2019

Directed by: John Suits

3022 is a 2019 American science fiction film directed by John Suits. A group of astronauts living in the haunting emptiness of deep space awake to find earth has suffered an extinction level
48
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Milla Jovovich, Michelle Rodriguez, Jason Isaacs

Released: 2002

Directed by: Paul W. S. Anderson

Resident Evil is a 2002 German-British-French science fiction horror film written and directed by Paul W. S. Anderson. The film stars Milla Jovovich and Michelle Rodriguez. It is the first ...more
49
The Cell is listed (or ranked) 49 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Jennifer Lopez, Vince Vaughn, Vincent D'Onofrio

Released: 2000

Directed by: Tarsem Singh

The Cell is a 2000 horror film directed by Tarsem Singh, and starring Jennifer Lopez, Vince Vaughn and Vincent D'Onofrio.
50
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abyx added Scarlett Johansson, Kryštof Hádek, Paul Brannigan

Released: 2013

Directed by: Jonathan Glazer

Under the Skin is a 2013 science fiction film directed by Jonathan Glazer, loosely based on Michel Faber's 2000 novel. A mysterious young woman (Scarlett Johansson) seduces lonely men in the ...more