Space Quest IV

Space Quest IV:
Roger Wilco and the Time Rippers
Cover art by Terry Robinson
DeveloperSierra On-Line
PublisherSierra On-Line
DirectorBill Davis (creative)
DesignersScott Murphy
Mark Crowe
ProgrammersScott Murphy
Doug Oldfield
ArtistMark Crowe
ComposersMark Seibert
Ken Allen
SeriesSpace Quest
EngineSCI
PlatformsDOS, Windows, Macintosh, Amiga, PC-9801
ReleaseMarch 1991
GenreAdventure
ModeSingle-player

Space Quest IV: Roger Wilco and the Time Rippers is a 1991 graphic adventure game by Sierra On-Line, and the fourth entry in the Space Quest series. The game was released originally on floppy disks in March 1991, and later released on CD-ROM in December 1992 with full speech support; an Atari ST version was announced via Sierra Online's magazine, Sierra News Magazine, but was later canceled. The game sees players assume 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.

The game was developed with 256-color hand painted graphics, motion capture animation, and a switch from the text parser system to a newer point-and-click interface. The overall cost of the game was far greater than previous titles, but proved a commercial success, receiving positive reviews from critics for its humour, voice cast, and presentation. A sequel, Space Quest V, was released in 1993.