Movies Like Spawn of the Slithis

If you liked Spawn of the Slithis (1978), a horror and science fiction movie directed by Stephen Traxler, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Underwater (2020)
★ 6.3/10Also horror and science fiction
After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.
2
Them! (1954)
★ 6.8/10Also science fiction and horror
As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their…
3
Godzilla: King of the Monsters (2019)
★ 6.7/10Also science fiction
Follows the heroic efforts of the crypto-zoological agency Monarch as its members face off against a battery of god-sized monsters, including the mighty Godzilla, who collides with Mothra, Rodan, and his ultimate…
4
Island of Terror (1966)
★ 5.9/10Also horror and science fiction
When a small island community becomes overrun with creeping, blobbish, tentacled monsters that liquefy and digest the bones from living creatures, the community struggles to fight back.
5
The Meg (2018)
★ 6.2/10Also science fiction and horror
A deep sea submersible pilot revisits his past fears in the Mariana Trench, and accidentally unleashes the seventy foot ancestor of the Great White Shark believed to be extinct.
6
The Blob (1958)
★ 6.2/10Also horror and science fiction
A drive-in favorite, this sci-fi classic follows teenagers Steve and his best girl, Jane, as they try to protect their hometown from a gelatinous alien life form that engulfs everything it touches. The first to…
7
Rampage (2018)
★ 6.5/10Also science fiction
Primatologist Davis Okoye shares an unshakable bond with George, the extraordinarily intelligent, silverback gorilla who has been in his care since birth. But a rogue genetic experiment gone awry mutates this gentle…
8
The End of Oak Street (2026)
★ 7.1/10Also science fiction
After a mysterious cosmic event rips Oak Street from suburbia and transports their neighborhood to someplace unknown, the Platt family soon discovers that their very survival depends on them sticking together as they…
9
Meg 2: The Trench (2023)
★ 6.3/10Also science fiction and horror
An exploratory dive into the deepest depths of the ocean of a daring research team spirals into chaos when a malevolent mining operation threatens their mission and forces them into a high-stakes battle for survival.
10
The Giant Behemoth (1959)
★ 5.8/10Also science fiction and horror
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
11
I Am Mother (2019)
★ 6.7/10Also science fiction
A teenage girl is raised underground by a robot "Mother", designed to repopulate the earth following an extinction event. But their unique bond is threatened when an inexplicable stranger arrives with alarming news.
12
Signal One (2026)
★ 6/10Also science fiction
A computer scientist is invited by a tech billionaire to join his private facility on a Caribbean island to investigate extraterrestrial matter on Earth. When they make contact beyond our world, chaos erupts as we’re…
13
Phase IV (1974)
★ 6.3/10Also horror and science fiction
Arizona ants mock the food chain on their way to a desert lab to get two scientists and a woman.
14
Pacific Rim (2013)
★ 7/10Also science fiction
Using massive piloted robots to combat the alien threat, Earth's survivors take the fight to the invading alien force lurking in the depths of the Pacific Ocean. Nearly defenseless in the face of the relentless enemy…
15
Silver Bullet (1985)
★ 6.7/10Also horror
The small city of Tarker's Mills is startled by a series of sadistic murders. The population fears the work of a maniac, but sightings of a mysterious, hairy creature soon spread. People lock themselves up at night…
16
The Car (1977)
★ 6.4/10Also horror
The Utah community of Santa Ynez is being terrorized by a mysterious black coupe that appears out of nowhere and begins running people down. After the car kills off the town sheriff, Captain Wade Parent is determined…
17
The Creeping Flesh (1973)
★ 5.9/10Also horror and science fiction
A Victorian scientist returns to London with his paleontological bag-of-bones discovery from Papua New Guinea. Unfortunately, when exposed to water, flesh returns to the bones, unleashing a malevolent entity on the…
18
Jurassic World: Fallen Kingdom (2018)
★ 6.5/10Also science fiction
Three years after Jurassic World was destroyed, Isla Nublar now sits abandoned. When the island's dormant volcano begins roaring to life, Owen and Claire mount a campaign to rescue the remaining dinosaurs from this…
19
Disclosure Day (2026)
★ 7.4/10Also science fiction
A cybersecurity expert becomes a whistleblower after uncovering secrets about aliens, putting him on the run from a corporation. Meanwhile, a meteorologist experiencing strange phenomena joins forces with him to prove…
20
The Asphyx (1972)
★ 6/10Also horror and science fiction
Hugo is a brilliant turn-of-the-century scientist, loved and respected by his family and friends, admired by his colleagues. But he is a man quickly becoming obsessed with a curious and frightening question...What is…