(Photo by Disney/Courtesy Everett Collection. ALIEN: ROMULUS.)

37 Best Space Horror Movies

“In space, no one can hear you scream.” Yeah, you knew we were gonna hit you with that Alien tagline in a guide to the best space horror movies of all time, and can you blame us? It’s the best one-liner fused to the best movie of this breed, perfectly encapsulating the far-flung cosmic terror that draws horror hounds and audiences to the subgenre.

So what defines space horror? The first rule is a biggie but ought to be obvious: Most of the movie cannot be set on this island Earth, so nothing about space vampires walkin’ on Ventura Boulevard, even if it’s got a killer opening riff or first act set off-world. Then with Alien setting the standard, the label of space horror calls forth a fleet of spacecraft from movie history, like the Nostromo or Covenant or Prometheus, the Event Horizon, and the Icarus II from Sunshine. Often, the way they confine and trap their passengers elevate these interstellar ships as characters in their own right.

And space horror can also go planetside. Within Alien, the sequel was quick to kick Ripley and her Colonial Marine pals off ship and onto a moon colony where the terror xenomorphed into new dimensions. And you can’t run in a straight line in Prometheus if you’re not outside with lots of room around. Predators had unsavory folk waking up in mid-air hurtling towards a hostile game planet, and not even Pitch Black‘s three suns could cool off Vin Diesel.

We ranked our space horror guide by Tomatometer score, with Certified Fresh films first, including Prospect, which maximized its low budget, High Life, a surprising joint effort from Robert Pattinson and director Claire Denis, and popular sci-fi sequel Alien: Romulus.