Year Name Developer Machines
1987 Police Quest - In Pursuit of the Death Angel '
Adventure / Text, Not Classified, | 1P, ???, 		Sierra apple2e ibm5170 st a500 apple2gs
1988 Police Quest II - The Vengeance '
Adventure / Text, Not Classified, | 1P, ???, 		Sierra On-Line, Inc. ibm5170 a500 pc9821
1991 Police Quest 3 - The Kindred '
Not Classified, | ???, 		Sierra On-Line, Inc. ibm5170 a500
1993 Police Quest 4 - Open Season '
Not Classified, | ???, 		Sierra On-Line, Inc. ibm5170