There’s no doubt that the Grand Theft Auto series is the biggest video game franchise in the world. For proof, just look at the pre-order numbers for Grand Theft Auto V versus other upcoming titles from established game series.
Grand Theft Auto V on the PlayStation 3 and Xbox 360 has been pre-ordered 2,618,743 (~2.6 million) times. We compared the number against pre-orders for hotly anticipated first-person shooters Battlefield 4 and Call of Duty: Ghosts on not just the PlayStation 3 and Xbox 360, but also the PlayStation 4 and Xbox One – the number for these eight titles adds up to just approximately 2.0 million units.
It’s not too big a surprise, really. GTA V comes more than five years after the previous game in the series, whereas Call of Duty is an annual thing, and Battlefield series gets a new title every two or three years. The former is a huge update; games in the latter two series are usually incremental updates because of the less development time they receive.
The data is sourced from VGChartz.com. They don’t tell people who its sources are, but their data has been reasonably accurate in the past.