There are at least six artists called Abyssus:
1. Death Metal band from Athens, Greece formed in 2011. They have self-released a debut EP Monarch to the Kingdom of the Dead in 2012, a limited split tape cassette with Nocturnal Vomit on Chaos And Hell Productions, 2013, and a limited split CD with Morbider on Ablaze Productions in 2014. They've also made consecutive appearances on Greek Death/Grind Scene compilation CDs in 2012 and 2013.
Official facebook page: http://www.facebook.com/pages/Abyssus/144338552349700 Read more on Last.fm