Every world in the Paradyce system was invaded by Necrons [[Necron]]s during the [[Pariah Crusade]].{{Fn|2b}}

[[Battle Group ]]s [[Battle Group Kallides|Kallides]] and [[Battle Group Orphaeus|Orphaeus]] both fought in this system, and were able to keep a major established presence here. Aegis fleets arrived in this system later on in the Pariah crusade.{{Fn|2b}}