Dynamic Watchlist Hub: May 09, 2026

10 Best Movies Like X: The Unknown

If you loved X: The Unknown, we've curated the perfect watchlist for you based on shared genres, themes, and directorial style.

🏆

Expert Review & Ratings

See our full critical analysis and audience score for X: The Unknown.

View Review →
Advertisement
#1
Them!

Them!

1954★ 6.8

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

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 poli...

#2
Underwater

Underwater

2020★ 6.3

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

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...

#3
The Blob

The Blob

1958★ 6.2

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

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 every...

#4
Island of Terror

Island of Terror

1966★ 5.9

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

A small island community is overrun with creeping, blobbish, tentacled monsters which liquefy and digest the bones from living creatures. The community struggles to fight back....

#5
Silver Bullet

Silver Bullet

1985★ 6.6

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

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. ...

#6
The Asphyx

The Asphyx

1972★ 6.0

Why watch this? A perfect follow-up to X: The Unknown for fans of Horror. It captures a similar spine-chilling atmosphere.

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 curiou...

Advertisement