This annual horror and horror film festival began as a three-day event and has grown since to a six-day schedule. Abertoir is Wales' only horror festival and is a member of the European Fantastic Film Festivals Federation. As well as screening new big-budget horror films, classic and independent films form a large and important part of the festival line-up. Each year a short film competition is held, which showcases horror and fantasy short films from around the world. In addition to film screenings, the festival regularly features concerts, theatre shows and masterclasses in its line up.