StarCraft II: Wings of Liberty/Zerg buildings

Returning Zerg Structures

 * Hatchery
 * Infested Command Center
 * Spawning Pool
 * Extractor
 * Evolution Chamber
 * Hydralisk Den
 * Spire
 * Greater Spire
 * Ultralisk Cavern
 * Hive
 * Lair

New Zerg Structures

 * Infested Barracks
 * Infested Supply Depot
 * Nest
 * Roach Den
 * Nydus Warren