Demigod - Unholy Domain LP (White/Blue vinyl)
Here it is. The demo that caused an eruption in 1991 and left aftershocks that can still be felt 30 years later. Death metal really doesn't get much better than this.
Many people hold Demigod's debut album "Slumber of Sullen Eyes" in high regard, and rightfully so. It's an amazing endeavor of dark death metal and should be in every metalhead's collection. But personally, I think the demo blows it out of the water.