Dementia Senex are from Italy and play complex Death Metal with elements of Doom and Sludge mixed in.
Heartworm comes from a dense, murky place where atmosphere and mood are just as important as heaviness and brutality.
The band themselves state their sound as a cross between Gorguts and Cult of Luna, and I’d agree that this is a fair assessment. They combine intricate riffing and complex blasting with wall-of-sound atmospherics and pacing.
The vocals are mainly halfway between a shout and a growl, while third track Heartworm mixes this up a bit with the vocalist trying a few different styles.
This EP only has 3 songs but there is 17 minutes of music here, and quality music too. I also love the EP cover.
I am genuinely excited to hear a full-length from them eventually. The phrase “one to watch” was invented for bands like this.
Wonderbox Metal 
Nice effort. It lacks originality maybe, but sounds interesting at least. Kairos is my fav.