Simply put, Satan's Basement is an experimental metal project. Early on the sound resembled noise music, but evolved into a death metal project. The first album Sludge Filled Wasteland is the first album to show the evolution of Satan's Basement from a joke project, into an extreme experimental metal project. By the second album Cerebral Apocalypse it had become difficult to fit Satan's Basement into a specific genre. Each song had a different style to it, and hadn't stuck to one specific vocal style, in some songs even combining different styles. Influences stem greatly from sludge doom, death metal, grindcore, crust punk, drone, and black metal.

Lyrically, most recent songs are generally about human ignorance, and gore. Most of the first songs were about defecation, then became heavily anti-Christian up until about halfway through the first album. Towards the end of the first album the lyrics were mostly about mutilation and death, then by the coming of the second album the lyrics became a lot deeper and poetic in some songs, and had a great deal more feeling and time put into them.