In the past 20 years, Asian horror has emerged as a major force in the genre. While American horror stagnated, churning out countless remakes (many of which are based on these Asian films), A-horror movies have been a source of innovation. Korean horror, for example, practically invented a new sub-genre of revenge-themed psychological thrillers, pioneered by Chan-wook Park. On top of that, something about the cultural difference makes these films extra-scary to Western audiences. Even a run-of-the-mill Japanese horror film can scare the pants off of a Western viewer who has never seen the style.
The criteria for voting on this list is fear. Which film evokes the most primal terror? These are the films which make you turn on all the lights in your house and get nervous when you go to the bathroom late at night. We're talking can't sleep, scarred for life, nightmare fuel. The winner will earn the title "scariest Asian horror film."