Hatchery
Two rally points are able to be set on a Hatchery; one for Drones and another for warrior units.
Hive
Lair
Infested Command Center
Spawning Pool
It allows the spawning of Zerglings and offers upgrades such as increased movement.
Extractor
Evolution Chamber
Contains research upgrades for burrow (unlocks burrow), slime (Overlord), generate Creep (Overlord – this ability also increases Zerg buildings' Creep generation speed), and allows the Queen to produce Shriekers, increasing the range of the Sunken Cluster and Swarm Cluch abilities.
Hydralisk Den
Unlocks the Hydralisk and researches attack and armor upgrades for them. It can mutate into a Deep Warren, enabling Lurkers to be developed.
Deep Warren
It is evolved from the Hydralisk Den and is required for the development of Lurkers, also providing upgrades for them.
Spire
Greater Spire
Ultralisk Cavern
Infestation Pit
Allows production of Infesters.
Infested Barracks
Infested Supply Depot
Nest
It allows Zerglings to morph into Banelings and contains Baneling upgrades (increased weapons and armor).
Roach Warren
It enables the spawning of Roaches, and contains Roach upgrades (increased attack and armor).
Nydus Warren
- Expect the Queen to be able to build structures like the Sunken Cluster.