Ghosts and slashers might be the first things that come to mind when you think of horror movies, but there’s a rich and creepy subgenre that breaks out perfectly to bring its own vibes and unique approach to scares: science-fiction horror.

From aliens and artificial intelligence out to kill to the utter terror that comes with facing the wholly foreign and unknown, sci-fi has made for some of the greatest and most ambitious horror flicks of the past few decades. There’s just something about the mysteries of the universe or the cutting-edge future we don’t quite understand that can make the hairs on the back of your neck stand up a little bit more.

So if you need a break from the goblins, zombies and ax murderers, we’ve assembled a list of absolute bangers that bring the sci-fi  and the scares all together.

Read more: The 15 absolute best A24 horror movies ranked

The best sci-fi horror movies

From classics like Alien to underrated gems, these are the best horror movies with a science-fiction element.