Classically minded death metal with  blasts of grim, grinding riffage,  eerie minor-key melodies, and  doom-laden crush, shifting into blasting assaults of high-speed violence.  This is seriously dark and decrepit stuff, lightless and suffocating, drenched in reverbed and sepulcharal atmospheres and draped in malevolence and black rot. One of my favorite demos of 2021, self-released and lmtd to just 70 copies, don't sleep on this one. FFO Cruciamentum, Grave Miasma.
Listen: https://decayingcrypt.bandcamp.com/releases