The album was self-released through frontman Toby Driver's Ice Level Music via Bandcamp on January 4, 2012, following the group's departure from Hydra Head Records.

The lineup remained the same, except Kim Abrams played drums on the album.

[1] Gamma Knife was received critically better than the past few albums, as SputnikMusic gave it a 3.5/5 and said "for the first time in years, Kayo Dot feels musically relevant.

[4] It is notable for beginning the return to Driver's metal roots and harsh vocals used in Choirs of the Eye.

Lyrics written by Jason Byron and Toby Driver.