On 26 December 2010, Croshaw revealed that he was working on a second novel. "It's about an apocalypse. WITH JAM IN IT." On 25 April 2012, Croshaw announced the novel, titled "Jam". It was published by Dark Horse Books and released on 23 October 2012. The concept for the novel can be seen in the Zero Punctuation review of the survival horror game "Dead Island" where he says that people would not be able to cope if civilization ends in any other way than a zombie apocalypse. He then mentions the idea of the entire world getting covered in "carnivorous jam". Croshaw has stated that "Jam" is tangentially related to "Mogworld" but is not a sequel.