Nick Grange will move to the American games developer as European PR director at the end of this month after almost six years at Microsoft.
Grange is credited with launching Microsoft’s bestselling Xbox console back in 2001. He was also responsible for introducing successful games franchises such as Halo to the media.
US-based Activision recently broke records with the release of Guitar Hero III, which allows players to pretend to be rock stars.
Grange joins as Activision launches a new James Bond series, Tony Hawk games and further Guitar Hero titles.