In December 2019, an EP titled Crossing the Blades was released as an early hint for a new album.[3] Two more singles were released in advance, closer to the album's release date: "Diamonds & Pearls" on 13 August 2021[4] and "The Shellback" on 24 September 2021.[5]
Rock Hard magazine praised Blood on Blood, saying that the album "should really stir up the German album charts soon. Every bet!".[7] That promise is fulfilled with the album reaching number 8 on the German album charts.[8]
Metal Hammer has noted highlight tracks from the album including "the solid rock ballad 'One Night One Day' as well as the ten-minute bouncer 'The Iron Times 1618-1648', in which Rolf [Kasparek] epically addresses the Thirty Years' War."[9]