For the album by French band Minimum Serious, see (R)evolution. For other albums, see Revolution (disambiguation)(r)Evolution is the ninth studio album by the band HammerFall. It was released on August 27, 2014 in Sweden, August 29 in mainland Europe, September 1 in the UK and September 2 in North America. It is their second album produced by James Michael and the HammerFall guitarists Oscar Dronjak and Pontus Norgren.