The Lurker is the StarCraft Zerg unit that can burrow and launch long-range ground attacks.
Lurkers are specialized Zerg ambush units created by morphing Hydralisks. Once burrowed, they are hidden from ordinary enemies and attack by sending rows of spines through the ground. Their attacks can damage multiple ground units along a line, making them effective against tightly packed armies and defensive positions.
Because Lurkers cannot normally attack while moving above ground in the original game, positioning is central to their use. Zerg players place them near ramps, bases, or likely attack routes, then rely on stealth and area damage to punish enemy movement.
Lurkers are often confused with Hydralisks because Hydralisks are their morphing source. Hydralisks are mobile ranged attackers, while Lurkers are burrowing specialists. They are also distinct from Roaches and Ultralisks, which have different roles and do not share the Lurker’s characteristic line-based burrowed attack.