StarCraft Protoss structures guide: Nexus, Assimilator, Pylon, Gateway, Forge, Cybernetics Core, Shield Battery, Photon Cannon, Robotics Facility, and Robotics Support Bay.
Nexus
The primary command structure for Protoss forces, the Nexus serves to produce Probes for base construction and collects resources from delivering Probes. Due to the structure's importance, it's strongly recommended that you defend all of your Nexuses with as much vigilance as possible.
- Cost: 400 Minerals
- Hit Points: 750
- Plasma Shields: 750
- Produces: Probe (Cost: 50 Minerals)
Assimilator
Assimilators are built atop Vespene Gas geysers to allow Probes to harvest the gas from the geyser. Once the building is constructed, the gas can then be transferred by a Probe to a nearby Nexus and processed.
- Cost: 100 Minerals
- Prerequisite: Nexus
- Hit Points: 450
- Plasma Shields: 450
Pylon
Pylons serve two main purposes. First off, in order to expand your base, you have to build buildings within the powered radius of a Pylon. If, for any reason, a building loses its Pylon connection, it becomes unpowered and incapable of functioning. Pylons also add 8 to the supply count. In order to expand your forces, more Pylons must therefore be constructed.
- Cost: 100 Minerals
- Prerequisite: Nexus
- Hit Points: 300
- Plasma Shields: 300
Gateway
Infantry units are trained and produced at the Gateway. Due to the slow speed of Protoss infantry production, it's always recommended that you have more than one Gateway to greatly speed up unit creation.
- Cost: 150 Minerals
- Prerequisite: Nexus
- Hit Points: 500
- Plasma Shields: 500
- Produces: Zealot (Cost: 100 Minerals), Dragoon (Cost: 125 Minerals/50 V.Gas), High Templar (Cost: 50 Minerals/150 V.Gas)
Forge
The ground unit upgrades can be researched at the Forge. It's strongly recommended that you upgrade Plasma Shields because that effects every unit. Suggest building more than one Forge to speed up research.
- Cost: 150 Minerals
- Prerequisite: Nexus
- Hit Points: 550
- Plasma Shields: 550
- Upgrades: Ground Weapons (Levels 1-3), Ground Armor (Levels 1-3), Plasma Shields (Levels 1-3)
Cybernetics Core
All air unit upgrades can be researched at the Cybernetics Core. Should you find it necessary to construct two Cybernetics Cores to speed up research, don't hesitate to do so. The Dragoon's essential Singularity Charge can also be researched here.
- Cost: 200 Minerals
- Prerequisite: Gateway
- Hit Points: 500
- Plasma Shields: 500
- Upgrades: Air Weapons (Levels 1-3), Air Armor (Levels 1-3), Singularity Charge (Cost: 150 Minerals/150 V.Gas)
Shield Battery
Shield Batteries can be an incredible asset both defensively and offensively. The purpose of the structure is to recharge the shields of any selected unit that you lead to it. When built along the perimeter of your base, you can use it on your defending units to extend their lifeforce. On the other hand, Shield Batteries can be effective when assaulting an enemy base, especially when they're built very close to the enemy's front lines.
- Cost: 100 Minerals
- Prerequisite: Gateway
- Hit Points: 200
- Plasma Shields: 200
- Energy: 200
Photon Cannon
Photon Cannons are incredibly fragile. However, they can deliver quite a punch against both air and ground targets. Their detector status allows them to see cloaked units and reveal them. Although fairly expensive, Photon Cannons are an invaluable defensive measure to any base.
- Cost: 200 Minerals
- Prerequisite: Forge
- Hit Points: 100
- Plasma Shields: 100
- Ground Attack: 20
- Air Attack: 20
Robotics Facility
The Robotics Facility serves to produce the robotic units in the Protoss arsenal. In times of need, considering constructing more than one Robotics Facility to speed up unit production.
- Cost: 200 Minerals/200 V.Gas
- Prerequisite: Cybernetics Core
- Hit Points: 500
- Plasma Shields: 500
- Produces: Shuttle (Cost: 200 Minerals), Reaver (Cost: 200 Minerals/100 V.Gas), Observer (Cost: 25 Minerals/75 V.Gas)
Robotics Support Bay
The Robotics Support Bay is a structure for the Protoss that provides upgrades for their robotic units.
- Cost: 150 Minerals/100 V.Gas
- Prerequisite: Robotics Facility
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