[12] After several Ziltoid Radio episodes aired, Townsend said he found the project hard to schedule and work with amidst touring and writing,[13][14] because he doesn't want to just "phone it in", and "it takes a lot of effort" to keep the content with tongue-in-cheek humour entertaining.

[15][16] A total of seven Ziltoid Radio episodes aired between August 2013 and January 2014, and since then there has been no discussion or activity considering the series or its affiliation with the Z² project.

[20] In February 2014, Townsend announced the recording process of Z² started on May 2, 2014, in Los Angeles,[19][21] and also revealed that the project will include the Ziltoid TV program and a live show, with a "big graphic novel comic" and a documentary.

[23] The Z² show took place at the Royal Albert Hall on April 13, 2015, after which Townsend stated his intent to take at least a year-long hiatus from recording and touring.

[29] The Japanese limited edition of the album features a "Loud Park" concert on a bonus DVD, recorded in Saitama, Japan, in October 2013.