Surprise! Stephen Totilo8/28/14 1:28pmFiled to: harmonixFiled to: harmonixharmonixharmonix music systemspcmaca city sleepskotaku core9SaveEditEmbiggenSend to EditorsPromoteShare to KinjaToggle Conversation toolsGo to permalinkSurprise! The people who made Rock Band are making a musical side-scrolling shmup. It's called A City Sleeps and will be out on PC and Mac in October. Lots of details on its Steam page and at IGN.