Catacombs was a doom metal solo project of Xathagorra Mlandroth (born John Del Russi). The band's music was deeply inspired by Lovecraftian horror and the Cthulhu Mythos, often directly referencing it lyrically. The project followed Xathagorra's other endeavor Hierophant but was concluded when Xathagorra began releasing all his subsequent music under the name Xathagorra through his record label Xathagorra Industries. Xathagorra Industries re-released Catacombs albums in physical format as well as through Xathagorra's bandcamp page.