The Code Purgers of Chift were a force in the Last Great Time War. It was a service they offered the Galaxy making them rich. They are experts of cleaning up code, from Battlecomputers, Organic Banking software or Wetworks facility, going through code that was thousands of years old clearing out subroutines and cumulated errors. The War Master said that it raised software engineering beyond archaeology and poetry. The Master thought that they could build weapons. (AUDIO: The Walls of Absence)