Massive Conspiracy Against All Life is the fourth full-length album by San Francisco-based one-man black metal band Leviathan.

Supposedly Wrest tried to release the album under the Lurker of Chalice moniker via Blake Judd's Battle Kommand Records, and it was originally going to be titled Perverse Calculus.

This also affected and delayed the Nachtmystium / Leviathan split album which was to be released on Southern Lord Records in 2007.

The album was inspired by the death of Wrest's girlfriend – the song "VI-XI-VI" refers to June 11, 2006, in Roman numerals, the date of her suicide.

(The CD-Text information of the released CD still refers to these alternate titles, and Wrest's Lurker of Chalice moniker instead of Leviathan.)