Neo-Cymeks or neos refer to new, disembodied cymek soldiers not of the original 20 Titans, recruited from trustee humans living on Omnius-controlled worlds (aka Synchronized Worlds). They were used by Omnius in battle, since they more fully understood human strategy and thought processes.
Later, Agamemnon recruited Neo-Cymeks loyal to the Titans for the purpose of increasing their numbers and over-powering the machines from the 'liberated' population of Bela Tegeuse and Richese, forming their new 'empire'.
Those new neocymeks had a self-destruct system that would be activated when the original Titans perished. They demanded a reset every 2 years by them. This plan not only prevented rebellion, but also urged them to protect their leaders fanatically, to keep them alive.