Space Quest IV: Roger Wilco and the Time Rippers (CD)

Space Quest IV: Roger Wilco and the Time Rippers is a point-and-click adventure for a single player. The protagonist is Roger Wilco, a space janitor who becomes an unlikely hero when he is targeted by his old nemesis, Sludge Vohaul. Rescued from execution by a time-traveling stranger, Roger is thrust into a dark future where Vohaul rules a dystopian version of his home planet with cybernetic forces.

To navigate the threat and restore his timeline, Roger must travel across various eras from the series' history. This journey involves solving inventory puzzles, interpreting environmental details, and surviving timed sequences where failure is frequent and often fatal, making the overall experience challenging. The narrative is presented through animated cutscenes, with later CD-ROM releases adding voice acting for the characters.

This installment introduced a significant interface change by adopting Sierra's icon-based SCI system, replacing the earlier text parser. Interaction is managed through a set of visual icons that allow the player to command Roger to walk, look, use items, take objects, talk, or employ other senses like touch, smell, and taste on his surroundings.