[2] Wakeford had been the sole constant member of the group since its inception, although numerous musicians have contributed and collaborated with him under the Sol Invictus name over the years.

[7] According to AllMusic biographer Paul Simpson, "Sol Invictus is one of the most prolific and influential bands associated with neo-folk or apocalyptic folk".

[4] Sol Invictus' debut album, Against the Modern World (1988), displayed a post-punk sound which incorporated elements of what was later termed martial industrial.

"[5] The band had considerable interest in heathen and Mithraist themes, often with an explicit antipathy to Christianity, reflecting the involvement of Wakeford and other members in neopagan groups.

[4][6] Their later albums are marked by more personal lyrical themes,[4] and expand their sound with cello, violin, orchestral drums, flute, and harp.