The Great Expanse debuted at No. 1 on the ARIA Albums Charts, making it the group's sixth number one and setting a new ARIA record for most #1 Albums by an Australian band or group.[1] The album was also issued on CD and vinyl.[2]
Second single "Leave Me Lonely" is about the "eternal struggle of being cornered by a close-talker".[4]MC Pressure told The Music that while "Leave Me Lonely" is the "fastest song on the record", "there are a few other party banger style songs that it fits in nicely with. The album as a whole, however, varies from dark and moody to fun and upbeat throughout."[5]