Space Quest III
| Space Quest III: The Pirates of Pestulon | |
|---|---|
| Cover art by John Shaw | |
| Developer(s) | Sierra On-Line | 
| Publisher(s) | Sierra On-Line | 
| Designer(s) | Mark Crowe Scott Murphy | 
| Programmer(s) | Scott Murphy Doug Oldfield Ken Koch Chris Smith | 
| Writer(s) | Mark Crowe Scott Murphy | 
| Composer(s) | Bob Siebenberg | 
| Series | Space Quest | 
| Engine | SCI0 | 
| Platform(s) | DOS, Macintosh, Amiga, Atari ST | 
| Release | March 24, 1989 | 
| Genre(s) | Adventure | 
| Mode(s) | Single-player | 
Space Quest III: The Pirates of Pestulon is a 1989 graphic adventure game by Sierra On-Line, and the third game in the Space Quest series. Players assume the role of Roger Wilco, a lowly space janitor, who becomes involved in rescuing a pair of computer programmers from a sinister video game company. The game received positive reviews from critics, and contributed further to the series' commercial success for Sierra. A sequel, Space Quest IV, was released in 1991.