Compared to other zerg strains, lurkers are arachnid in appearance. Evolved from the hydralisk, these creatures are powerful anti-ground ambushers. They serve as defense warriors for hive clusters and outlying zerg colonies. Lurkers emit waves of super-dense spines against their enemies, having a full width of damage of ten meters. However, lurkers must actually burrow underground to release these subterranean attacks. Any warriors on the surface who are caught by these spines are instantly impaled. These spines themselves are capable of tearing into flesh, steel, and even reinforced armor plating. The spines can even be directed downward into open spaces, provided the lurker is underground. As such, even a handful of lurkers can turn an inoccuous chokepoint into a nightmare. The only weakness of the lurker is that it is virtually defenseless while above ground. Within the Leviathan Brood, the innate connection between hydralisks and lurkers is unparalleled among the Swarm. As such, their metamorphosis yields a considerable number of additional seismic spikes.
The lurker had been developed from the hydralisk strain by the Brood War. The strain was first observed under the leadership of Kerrigan (although technically, it was their handiwork that was the first indication).
This article or section contains information about StarCraft: Ghost, which has been declared non-canon. Elements may be taken as 'flavor lore' however. The content may be significantly out of date. Please do not add speculation to this article, and remember to cite a published source for details.
The lurker was to appear in StarCraft: Ghost. Its form underwent an extensive redesign from its Brood War incarnation during development.