Collider film critic Jeremy Urquhart has published a ranked list of the 15 scariest science fiction films of all time, arguing that horror and sci-fi blend particularly well because sci-fi's futuristic or speculative settings can be used to unsettle audiences as effectively as they provoke thought. The list runs from good to great, highlighting films that use dread, atmosphere and unease rather than relying purely on gore or cheap scares.

Films featured include John Krasinski's 2018 hit A Quiet Place, praised for its tense, largely gore-free post-apocalyptic horror despite its PG-13 rating, and Phil Tippett's stop-motion passion project Mad God (2021), a grotesque blend of dark fantasy, sci-fi and horror decades in the making. The full ranking of 15 films was not entirely available, but the list continues upward from these lower-ranked entries towards the writer's top picks for the genre.