In September 2012, Stefan Kaufmann left the band for health reasons.  He continues to work in the surroundings of the band and produces for other bands in his own ROXX studio. In early January 2013, Russian guitarist Andrey Smirnov was recruited as the new member.  A week later, Igor Gianola left the band "due to conflicts between band appointments and his private life and business." Following his departure, former Amberian Dawn guitarist Kasperi Heikkinen joined the band.  The next album, Steelhammer , was released on 20 May.