The group released their inaugural album, World Downfall, in 1989. It is seen as one of the classics of early grindcore. An album containing two rehearsal sessions of the band from 1987 was released in 2003.
In early 2005 it was rumored that Terrorizer were to reform with their original line-up; however, of the original line up, only Jesse Pintado and Pete Sandoval agreed to be on the long-awaited second studio album, Darker Days Ahead, released in August 2006, on Century Media Records. They recruited Tony Norman of Morbid Angel for guitars and bass and veteran grind/punk/metal vocalist Anthony Rezhawk. Pintado had been recording and playing shows with Rezhawk's band Resistant Culture and asked him to join Terrorizer. In the week of its release Pintado died due to complications arising from liver failure.
In 2009, Terrorizer released a new demo track, "Hordes of Zombies", on their MySpace page. In June 2011, Terrorizer signed to Season of Mist, and will release their new album, Hordes of Zombies, on February 28, 2012. Resistant Culture guitarist Katina Culture replaced Pintado and David Vincent rejoined on bass.