Movies Like Grandparents from Outer Space

If you liked Grandparents from Outer Space (1996), a science fiction and horror movie directed by Conrad Brooks, 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
Zygote (2017)
★ 7/10Also horror and science fiction
The two remaining crew members of a mining operation in the Arctic Circle fight to survive against an alien creature.
2
Alien: Alone (2019)
★ 6.2/10Also science fiction and horror
An abandoned crew member aboard a derelict chemical hauler is trying to keep her ship and herself alive. After discovering hidden cargo, she risks it all to power up the broken ship in search of human life.
3
Monster Hunters (2020)
★ 6.2/10Also science fiction and horror
When an alien prison ship crash lands and unleashes creature after creature in the California desert, they make quick work of the army that tries to stop them. Now, the only hope of stopping the aliens rests with a…
4
Blood and Snow (2023)
★ 6.2/10Also science fiction and horror
When researchers rescue a fellow scientist who survived a meteorite strike in the Arctic, they discover she may not be who they think she is. Is she some-how changed?
5
Timescape (1992)
★ 6.4/10Also science fiction
Before they can complete renovations on their new country inn, a widowed father and his young daughter are visited by a strange group of tourists. He soon makes a chilling discovery: they are disaster junkies from the…
6
Margaux (2022)
★ 5.9/10Also horror and science fiction
As a group of seniors celebrate their final college days at a smart house, the house's highly advanced AI system, Margaux, begins to take on a deadly presence of her own. A carefree weekend of partying turns into a…
7
Frankenstein Unbound (1990)
★ 5.9/10Also horror and science fiction
The ultimate weapon, claimed to be safe for mankind, produces global side-effects including time slides and disappearances. The scientist behind the project and his car are zapped from the year 2031 to 1817 in…
8
Books of Blood (2020)
★ 6.2/10Also horror and science fiction
A journey into uncharted and forbidden territory through three tales tangled in space and time.
9
Osiris (2025)
★ 6.2/10Also science fiction and horror
Special Forces commandos on a mission are abducted mid-operation by a mysterious spacecraft. Upon waking aboard, they find themselves prey to a relentless alien race in a fight for survival.
10
Slash/Back (2022)
★ 6.4/10Also science fiction and horror
In a remote Arctic community, a group of Inuit girls fight off an alien invasion, all while trying to make it to the coolest party in town.
11
Cosmos (2019)
★ 6/10Also science fiction
Three astronomers accidentally intercept what they believe to be a signal from a distant alien civilization, but the truth is even more incredible than any of them could have imagined.
12
Splinter (2008)
★ 6.2/10Also horror and science fiction
When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV…
13
Die Alone (2024)
★ 6.5/10Also horror and science fiction
Lost in a world reclaimed by nature and overrun by mysterious creatures, Ethan, a young man with amnesia navigates the dangerous landscape in search of his lost love Emma. His journey takes an unexpected turn when he…
14
Abduction (2019)
★ 6.1/10Also horror and science fiction
A man steps out of a park fountain in Ho Chi Minh City with no recollection of who he is or where he came from. As he wanders through the city, piecing together clues to his past, he is relentlessly pursued by…
15
The Return (2020)
★ 6.7/10Also horror and science fiction
After the death of his father, a brilliant college student returns to his family home where he learns that the horrors from his childhood aren't as dead and gone as he once thought.
16
Code 8 Part II (2024)
★ 6.4/10Also science fiction
In a world where superpowered people are heavily policed by robots, an ex-con teams up with a drug lord he despises to protect a teen from a corrupt cop.
17
Babylon 5: The Legend of the Rangers - To Live and Die in Starlight (2002)
★ 6/10Also science fiction
After being punished for retreat from combat, Ranger David Martel is given command of the Liandra, a haunted 20-year old Minbari fighting ship. He's escorting ambassadors to a secret archaeological site, the oldest…
18
The Signal (2007)
★ 5.9/10Also horror and science fiction
A horror film told in three parts, from three perspectives, in which a mysterious transmission that turns people into killers invades every cell phone, radio, and television.
19
Screamers (1995)
★ 6.3/10Also horror and science fiction
SIRIUS 6B, Year 2078. On a distant mining planet ravaged by a decade of war, scientists have created the perfect weapon: a blade-wielding, self-replicating race of killing devices known as Screamers designed for one…
20
Alien: Harvest (2019)
★ 6.5/10Also science fiction and horror
The surviving crew of a damaged space harvester has a motion sensor as their only navigation tool leading them to safety, while a creature in the shadows terrorizes them. However, the greatest threat might have been…