 | Orthodoxyn - Orthodoxyn Metal |  01.01.2025 |
 | Oruga - Blackened Souls Metal | 19.05.2014 |
 | Oryx - Lamenting A Dead World Metal | 30.04.2021 |
 | Oryx - Primordial Sky Metal | 18.10.2024 |
 | Oshiego - Crossing The Bridge Of Siraat Metal |  07.04.2015 |
 | Oshiego - Jaljalut Metal | 14.01.2022 |
 | Oshiego - The Book Of Wonders Metal | 29.03.2019 |
 | Osiah - Chronos [EP] Metal | 03.02.2023 |
 | Osiah - Kairos Metal | 08.12.2023 |
 | Osiah - Loss Metal | 07.05.2021 |
 | Osiris - Meanders A Soul... Metal | 26.04.2021 |
 | Ossaert - Offerdier Metal | 07.04.2023 |
 | Ossian - A Reményhozó Metal | 05.04.2019 |
 | Ossian - A Teljesség Metal | 30.04.2021 |
 | Ossian - Lelekero Metal | 13.04.2015 |