SWAT 3: Close Quarters Battle is a 1999 tactical first-person shooter video game developed by Sierra Northwest and published by Sierra Entertainment exclusively for Microsoft Windows. It is the seventh installment of the Police Quest series and the third installment in the SWAT subseries. SWAT 3 follows the Los Angeles Police Department (LAPD) Metropolitan Division SWAT team as they combat a wave of violent crime and terrorism in Los Angeles in the lead-up to a nuclear disarmament treaty signing.

SWAT 4 is a 2005 tactical first-person shooter video game developed by Irrational Games and published by Sierra Entertainment exclusively for Microsoft Windows. It is the ninth installment in the Police Quest series and the fourth installment in the SWAT subseries. In SWAT 4, the player commands a police SWAT team in the city of Fairview, New York. Unlike its predecessor, SWAT 3: Close Quarters Battle, SWAT 4 does not have an overarching plot. Instead, gameplay takes place over a series of unconnected deployments of the player's SWAT team, as they are sent to apprehend criminals, terrorists, gangs, and cults in and around Fairview.