The ability to take cover in Grand Theft Auto, known henceforth as the "cover system", has long been a feature since the first game, primarily intended to protect the player from gunfire and injury. Development of the feature was initially slow as functionality of the cover system had only been improved gradually in Grand Theft Auto: Vice City and Grand Theft Auto: San Andreas. Grand Theft Auto IV and Grand Theft Auto V, however, feature a significantly overhauled cover system, serving as a crucial gameplay element.