Shortly after signing Hipnotic, publisher Activision claimed that Hipnotic had been at the core of the Duke Nukem 3D development team. Duke Nukem 3D developer 3D Realms vigorously denied this, stating that only five members of Hipnotic Interactive were former staff of 3D Realms, and of these five only three had a significant role in making Duke Nukem 3D.[1]