| Xasthur | Xasthur - A Gate Through Bloodstained Mirrors | | Vinyl |
| Xasthur | Xasthur - All Reflections Drained | 2009 | Tape |
| Xasthur | Xasthur - Nocturnal Poisoning | | Vinyl |
| Xasthur | Xasthur - Subliminal Genocide | | Vinyl |
| Xasthur | Xasthur - Telepathic with the Deceased | | Vinyl |
| Xasthur | Xasthur - The Funeral of Being | | Vinyl |
| Xasthur | Xasthur - To Violate the Oblivious | | Vinyl |
| Xasthur | Xasthur - Xasthur | | Vinyl |
| Xenophobia | Xenophobia - Xenophobia | | Vinyl |
| Xentrix | Xentrix - Ghost Busters | 1990 | Tape |
| Xerbittert | Xerbittert - Hymn To Oppressive Void | 2010 | Tape |
| Xerión | Xerión - O Trono de Breogán [demo] | | Tape |
| Xibalba | Xibalba - Ah Dzam Poop Ek | | Vinyl |
| Xibalba | Xibalba - Ancients | 2008 | Vinyl |
| Xibalba | Xibalba - Luctus Maestitia | 1992 | Tape |
| Xysma | Xysma - Above The Mind Of Morbidity | | Vinyl |
| Xysma | Xysma - Above The Mind Of Morbidity (1st press/tour edition) | | Vinyl |
| Xysma | Xysma - Fata morgana | | Vinyl |
| Xyster | Xyster - Black Bible | | Vinyl |
