[[Image:Gw_wh40k_orks_ork_dreadnought.gif|thumb|right|A hulking Deff Dread]][[Ork]] '''Deff Dreads''' (Death Dreadnoughts) are [[Ork]]ish walking war machines, belching smoke as they charge across the battlefield. Because, in a similar way to [[Space Marine Dreadnought]]s, a Deff Dread's pilot must be permanently wired into the machine, 'Dreads' require the skills of both a [[Mekboy]] and a [[Painboy]] to construct. Orks often volunteer to be wired into Dreads because it will in effect turn him into a massive, powerful and destructive machine.