Cloverfield utilized a unique viral marketing campaign to promote the low budget monster movie with minimal information about the film. The teaser trailer provided cryptic footage without revealing the title to generate audience curiosity. An alternate reality game and websites were created that provided backstories and clues without directly relating to the film's plot, encouraging discussion and "word of mouth" promotion. As more details emerged over time through trailers and posters, interest in the film increased leading up to its release.