The horror and sci-fi genres have given us some unforgettable films, and John Carpenter’s “The Thing” is a prime example. If you loved the suspense, the isolation, and the terrifying unknown in “The Thing,” you’re in for a treat. Here are 18 movies that capture similar elements and are sure to keep you on the edge of your seat.

1. Alien

Ridley Scott’s “Alien” is a classic that combines horror and science fiction in a claustrophobic setting. Starring Sigourney Weaver as Ripley, the film follows a crew that encounters a deadly extraterrestrial being on their spaceship.

2. The Mist

Based on Stephen King’s novella, “The Mist” is a horror film directed by Frank Darabont. The movie stars Thomas Jane and Marcia Gay Harden and revolves around a small town enveloped by a mysterious mist filled with monstrous creatures.

3. Event Horizon

“Event Horizon” is a sci-fi horror film directed by Paul W.S. Anderson. Starring Laurence Fishburne and Sam Neill, the movie follows a rescue crew investigating a spaceship that disappeared into a black hole and has now returned with something sinister on board.

4. Invasion of the Body Snatchers

This 1978 remake of the classic film, directed by Philip Kaufman, stars Donald Sutherland and Brooke Adams. The story focuses on a group of people who discover that humans are being replaced by alien duplicates.

5. The Fly

Directed by David Cronenberg, “The Fly” is a body horror film starring Jeff Goldblum and Geena Davis. The plot centers on a scientist who begins to transform into a grotesque creature after an experiment goes wrong.

6. The Faculty

“The Faculty,” directed by Robert Rodriguez, is a horror film set in a high school where the faculty starts behaving strangely. The movie stars Josh Hartnett, Elijah Wood, and Jordana Brewster.

7. Pandorum

“Pandorum” is a sci-fi horror film directed by Christian Alvart. Starring Dennis Quaid and Ben Foster, the movie follows two astronauts who wake up on a spaceship with no memory and soon discover they are not alone.

8. Sunshine

Directed by Danny Boyle, “Sunshine” is a sci-fi thriller starring Cillian Murphy, Chris Evans, and Rose Byrne. The film follows a team of astronauts on a dangerous mission to reignite the dying sun.

9. Slither

James Gunn’s “Slither” is a horror-comedy that stars Nathan Fillion, Elizabeth Banks, and Michael Rooker. The story revolves around a small town invaded by alien parasites that turn residents into monstrous creatures.

10. The Descent

Directed by Neil Marshall, “The Descent” is a horror film about a group of women who encounter terrifying creatures while exploring an uncharted cave system. The movie stars Shauna Macdonald and Natalie Mendoza.

11. Prometheus

Ridley Scott’s “Prometheus” serves as a prequel to “Alien” and stars Noomi Rapace, Michael Fassbender, and Charlize Theron. The film follows a team of explorers searching for humanity’s origins on a distant planet.

12. The Blob

This 1988 remake of the classic horror film, directed by Chuck Russell, stars Kevin Dillon and Shawnee Smith. The plot centers on a small town that is attacked by a gelatinous, flesh-eating blob from space.

13. Cloverfield

Directed by Matt Reeves, “Cloverfield” is a found-footage monster film starring Michael Stahl-David, Odette Yustman, and T.J. Miller. The story follows a group of friends trying to survive a giant monster attack in New York City.

14. Life

“Life,” directed by Daniel Espinosa, is a sci-fi horror film starring Jake Gyllenhaal, Rebecca Ferguson, and Ryan Reynolds. The movie follows a crew on the International Space Station that discovers a rapidly evolving life form from Mars.

15. Sphere

Directed by Barry Levinson, “Sphere” is a sci-fi thriller starring Dustin Hoffman, Sharon Stone, and Samuel L. Jackson. The plot involves a team of scientists exploring a mysterious spacecraft found at the bottom of the ocean.

16. The Void

Jeremy Gillespie and Steven Kostanski directed “The Void,” a horror film starring Aaron Poole and Kathleen Munroe. The story follows a police officer who encounters a group of mysterious cultists and otherworldly creatures in a rural hospital.

17. Underwater

“Underwater,” directed by William Eubank, is a sci-fi horror film starring Kristen Stewart, Vincent Cassel, and T.J. Miller. The movie follows a team of underwater researchers who must survive after an earthquake unleashes mysterious creatures.

18. Annihilation

Directed by Alex Garland, “Annihilation” is a sci-fi thriller starring Natalie Portman, Jennifer Jason Leigh, and Tessa Thompson. The film follows a group of scientists exploring a mysterious and dangerous environmental disaster zone.