Here is an overview of the downloadable content, via Funcom:

To perform two brand-new original songs, we welcome new talent: the soaring powerhouse that is Cristina Scabbia from Lacuna Coil, and the searing demon voice of Will Ramos from Lorna Shore. Players can select these songs from the new Song Selection feature that will arrive in a free update on the same day as “Dream of the Beast” releases.

On top of the two new songs, “Dream of the Beast” adds plenty more. Blast through demons in rhythmic bursts of death with The Red Right Hand, the new machine gun, and don one of three sizzling outfits that provide unique gameplay modifiers. With this downloadable content, players will be able to experience Metal: Hellsinger with a completely different beat and playstyle.

Metal: Hellsinger is available now for PlayStation 5, Xbox Series, PlayStation 4, Xbox One, and PC via Steam.