The word "cult" refers to a group of people who have intense devotion and follow the beliefs, practices, or a charismatic leader. It often implies that the group's practices or beliefs are unconventional or extreme. Full definition
In addition, the theater regularly shows special screenings of cult classics in addition to newer releases. (theeverygirl.com)
The kind of company which found some small success with a niche title that maybe developed some kind of cult following, but was then forgotten. (hardcoregaming101.net)
Since it rose to popularity in cult form, rumours of a sequel had always been on the cards. (flickeringmyth.com)