The title is set to launch first on those two platforms. It is the next chapter in a series nearly 30 years old, in which players explore open worlds and break the law, and the wait has created an extraordinary level of anticipation.
The rush to order early may be partly down to the file size. At 212GB, many buyers are pre-ordering so they can pre-load the game and play it at launch rather than wait for the download.
The original game was relatively basic, with a top-down 2D view and more arcade-like graphics. Even so, it forged the blueprint for the signature satire still seen in much later, more advanced entries.
Jones said the team envisioned a game in which a player could be both a criminal and a police officer.
He said the idea of being able not only to drive but to switch and steal cars, while running about on foot, meant"all of a sudden you had this interesting mix of gaming coming together".
Partly out of necessity, because of a comparatively low budget and the cost of real-world licenses, the team came up with cheeky brand names and fake radio stations that players could listen to while driving and causing mayhem.
Later titles in the series have a cinematic feel but also reflect the distinct identity it has forged for itself, the BBC reported. The series evolved into a cultural reference point that people recognised, understood and even referenced outside gaming.
Its themes of criminality and violence sparked controversy, leading to debates in the UK Parliament and calls to ban the game.
Baglow said watching"the rest of the world fall in love with the game over the last 29 years has just been joyful".