Ozium was formed in the spring of 2023 from the basement of vocalist and former bassist Declan Twomey's basement. With guitarist Luke and drummer J.C. Heredia, they started out covering classic Doom Metal from Black Sabbath, Electric Wizard, Sleep, and other iconic acts. They played basement shows throughout West Lafayette near Purdue University's campus.
In September of 2024, they recruited new bassist Amrit to have Twomey strictly focus on vocals and other soundscapes. Later that year, they released their debut single, "Hammered", on all streaming platforms. They are set to release their debut EP in March of 2025.
Over the history of the band, they have played with a diverse range of other bands. In September 2024, they played with Chicago's Something is Waiting as well as Kalamazoo's Noise-Rock Bronson Arm.