Sierra discontinued the Police Quest series after the release of Open Season, but kept a "police simulator" brand in association with SWAT, the U.S. police force specialized in high risk arrests, hostage situations, VIP protection and other situations too hot to handle by the regular force.

SWAT is more a brand name than a series per se, as they started as interactive movies and progressed into a tactical FPS, with a squad-oriented RTS in between.

Related Links: * SWAT Series - Wikipedia