Police Quest Collection comprises the first four games of the Police Quest series, released between 1987-1993. The series is notable for containing a complex, realistic and gritty set of storylines, which are based as true-to-life as is possible. This is not too surprising, as the first three games were devised by a former police officer, whilst the fourth was developed by a former chief of police. Police Quest is considered to be so realistic that, in the early 1990s, it was said serving police officers in real life used the game as a training tool.