Leading sales monitors the NPD Group, GfK Chart-Track and Enterbrain have released the Top Global Markets Report, the first in a new series of monthly reports detailing videogame software sales across the US, UK and Japan.
The first of the multi-continent reports lists Rockstar's Grand Theft Auto IV as 2008's bestseller to date with 6,293,000 units sold, despite the fact that the game only released in late April in the US and UK and has yet to hit the Japanese market.