StarCraft/Zerg buildings

The Hatchery is the Zerg's primary building, it produce creep on which other Zerg structures can be built as well as larvae. Larvae can be morphed other units. Up to three larvae will spawn near the Hatchery. The Hatchery is required to build Lair, Extractor, Evolution chamber, Creep colony and Spawning pool.

Statistics: Cost: 300/0; Hit points: 1250; Armor type: Heavy; Armor: 1; Hotkey: H

Lair

The lair is the evolution of the hatchery. It require a hatchery and a spawning pool to be built. And is required to build a hive, a spire and queen's nest.

Statistics: Cost: 150/100; Hit points: 1800; Armor type: Heavy; Armor: 1

Available upgrades: Burrow; Ventral sacs; Pneumatized carapace; Antennae

Hive

The hive is the evolution of the lair. It require a lair and Queen's nest to be built. And is required to build nydus canal, defiler's mound and ultralisk cavern as well as to morph a spire into a greater spire.

Statistics: Cost: 200/150; Hit points: 2500; Armor type: Heavy; Armor: 1

Available upgrades: see Lair's upgrades

Extractor

The extractor allows drones to collect Vespene Gas, which is needed to build almost every unit. Like its counterparts, the Terran Refinery and the Protoss Assimilator, only one drone can be inside it at any given time. The extractor require a hatchery to be built.

Statistics: Cost: 50/0; Hit points: 750; Armor type: Heavy; Armor: 1; Hotkey: E

Spawning pool

The spawning pool is required to create zerglings. The spawning pool require a hatchery. And is required to build an hydralisk den as well as to mutate a hatchery into a lair and a creep colony into a sunken colony or a spore colony.

Statistics: Cost: 200/0 (was 150/0 before version 1.08); Hit points: 750; Armor type: Heavy; Armor: 1; Hotkey: S

Available Upgrades: Metabolic boost; Adrenal glands

Hydralisk den

The hydralisk den, as its name suggests, allows the production and support of hydralisks. It require a hatchery and a spawning pool to be built.

Statistics: Cost: 100/50; Hit points: 850; Armor type: Heavy; Armor: 1; Hotkey: D

Available upgrades: Muscular augments; Grooved spines; Lurker aspect

Evolution chamber

The Zerg ground units upgrades can be found here. The second levels of each upgrade can only be achieved with a lair, and the third levels can only be researched with a hive.

Statistics: Cost: 75/0; Hit points: 750; Armor type: Heavy; Armor: 1; Hotkey: V

Available upgrades: Melee attacks; Missile attacks; Carapace

Creep colony

This building extends the creep as to give more room for buildings. The creep colony can be mutated into a sunken colony or a spore colony for defense purposes. It require an hatchery to built.

Statistics: Cost: 75/0; Hit points: 400; Armor type: Heavy; Armor: 1; Hotkey: C

Sunken colony

Mutated from a creep colony. It is the strongest ground defense of any race, dealing 40 explosive damage to any nearbly enemy ground units. It require a creep colony and a spawning pool to be built.

Statistics: Cost: 50/0; Hit points: 300; Armor type: Heavy; Armor: 2; Damage type: Explosive; Damage: 40; Hotkey: U

Spore colony

Mutated from a creep colony. It is the sturdiest air defense of any species, with 400 hit points. Its damage of 15, however, make this building not as effective at its job as the sunken colony It require a creep colony and an evolution chamber to be built.

Statistics: Cost: 50/0; Hit points: 400; Armor type: Heavy; Armor: 1; Damage type: Normal; Damage: 15; Detection range: 10; Hotkey: S

Queen's Nest

This building allows for production of Queens. Also, Queen abilities and upgrades such as Ensnare, Spawn Broodlings, and greater energy capacity can be evolved here. Finally, it is the prerequisite for Hives.

Cost: 150/100
Hotkey: Q
Prerequisite: Lair
Available Upgrades

Ensnare (Queen ability): 100/100

Spawn Broodling (Queen ability): 100/100

Gamete Synthesis (increased Queen energy): 150/150

Spire

One of the more important Zerg structures, the Spire allows production of basic air units at the Hatchery. Also, air unit weapons and armor can be upgraded here. This structure can be upgraded into a Greater Spire. The third levels of both air unit upgrades require the upgraded form.

Cost: 200/150
Hotkey: S
Prerequisite: Lair
Available Upgrades

Upgrade Flyer Attacks: Level 1: 100/100, Level 2: 175/175, Level 3: 250/250

Upgrade Flyer Carapace: Level 1: 150/150, Level 2: 225/225, Level 3: 300/300

Greater Spire

The mutation of Mutalisks into Guardians and Devourers and the final levels of air upgrades require this structure.

Cost: 100/150 (in addition to the Spire's cost)
Hotkey: G
Prerequisite: Spire, Hive.

Defiler Mound

This is a high-level structure which allows for the production of Defilers. Also, Defiler abilities such as Consume, Plague, and greater energy capacity are evolved here.

Cost: 100/100
Hotkey: D
Prerequisite: Hive
Available Upgrades

Consume (Defiler ability): 100/100

Plague (Defiler ability): 150/150

Metasynaptic Node (greater Defiler energy): 150/150

Ultralisk Cavern

Another advanced building, the Ultralisk Cavern lets the player produce the giant Ultralisks. In the Brood War expansion, Ultralisk upgrades are also evolved here.

Cost: 150/200
Hotkey: U
Prerequisite: Hive
Available Upgrades

Anabolic Synthesis (Increased Ultralisk speed): 150/150

Chitnous Plating (Increased Ultralisk armor): 150/150

Nydus Canal

This is basically a tunnel that transports Zerg units instantly across the map. Once an entrance is built, an exit node must be placed (at no additional cost) on either friendly or enemy Creep for the Canal to start working.

Cost: 150/0
Hotkey: N
Prerequisite: Hive