The first two games in the series, XZR and XZR II were both released in Japan in 1988, with versions available for the NEC PC-8801, NEC PC-9801, MSX2 and the X1 turbo (for the first game only). In 1991, a remake of XZR II simply titled Exile was released for the PC Engine and Mega Drive. These versions were both released in North America the following year, with Working Designs handling the localization for the TurboGrafx-CD version, while Renovation Products published the Genesis version.