Space Quest IV

Space Quest IV: Roger Wilco and the Time Rippers is a graphic adventure game developed and published by Sierra On-Line. It is the fourth entry in the Space Quest series. The game was released on floppy disks in March 1991 for MS-DOS and Classic Mac OS, and on CD-ROM in December 1992 with speech support. Amiga and PC-98 versions were also published in 1992. The player assumes the role of Roger Wilco, who is thrust into a new adventure across time and space where he must thwart the plans of an old foe that is seeking revenge against him.