Lego Monster Fighters was a Lego theme based on Universal Studios Monsters from the horror fiction genre. The Monster Fighters fight against the Lord Vampyre's monsters while collecting the moonstones. The story takes place in the Monster Realm and it's similar to The Monster Squad film. The theme was first introduced in May 2012. It was eventually discontinued by the end of December 2014. The theme also produced a range of associated media, including theme park attractions, several shorts, video game, app and publications.