It was the first game in the Grand Theft Auto series.
Grand Theft Auto, now primarily referred to or known as Grand Theft Auto 1 or GTA 1 in order to differentiate between the original game and the series' individual titles, is the first game in the Grand Theft Auto series and a sandbox-crime game that was developed by Rockstar North and was published by Rockstar Games, released on PlayStation 1, PC and later on Game Boy Color, on October 1997. ' ―Description in on Rockstar Games' Website The groundbreaking non-linear urban crime game shook up a complacent game industry with its irreverent gameplay, humor and style - and a phenomenon was born.
'In 1997, a band of developers that would come to be known as Rockstar North and Rockstar Games released the original Grand Theft Auto on an unsuspecting public.