
The mammoth, pyramidal visage of the Nexus looms over each and every Protoss settlement. The Nexus serves as a psychic anchor, allowing the Protoss to access their psionic energy matrix from across the galaxy. The Nexus also manufactures the small robot Probes that gather precious resources and lay down the warp beacons required to teleport in other Protoss buildings.
Cost: 400 Minerals
Pylon
Carved from the sacred Khaydarin Crystals found only on the Protoss Homeworld, Pylons act as focal points for the Psionic Matrix emitted by the Nexus. The floating Pylons can power any Protoss buildings within a large radius around them, and establishing a network of Pylons is essential to properly expanding a new Protoss colony.
Cost: 100 Minerals
Gateway
The swirling rift at the center of the massive Gateway is where the highly trained Protoss ground troops can be warped in from their Homeworld of Aiur.
Cost: 150 Minerals
Forge
Even though their technology is incredibly advanced when compared to that of other species, the Protoss constantly strive to enhance and refine their weapons and armor. Work at the great Forge rarely ceases, as this edifice is where much of this research takes place.
Cost: 150 Minerals
Assimilator
Protoss buildings and equipment are mostly produced on Aiur and warped to wherever they are needed. Raw materials, however, are still required both for shipment to the Homeworld and the creation of the warp rifts used to bring in new items. Vespene gas is as prized by the Protoss as it is by the Terrans. The Assimilator processes and packages the gas produced at any geyser it is constructed over.
Cost: 100 Minerals
Cybernetics Core
The Cybernetics Core is a secondary Protoss building which houses the construction materials and automated factories essential to the production of the powerful Protoss Dragoons. Located deep within the Core are the mysterious essence translators that bond the spirits of fallen Protoss to the cold metal exoskeletons of the Dragoons.
Cost: 150 Minerals
Citadel of Adun
The ultimate goal of all Protoss warriors is to achieve the highest level of Khala. To this end they spend much of their time in deep meditation and sparring with each other in the floating Citadels. Named for one of the greatest masters of the Khala, the Citadels of Adun are centers of learning and research for acolyte warriors.
Cost: 150 Minerals, 100 Vespene Gas
Robotics Facility
The Protoss rely on automated war machines to bolster their numbers and avoid the loss of Protoss life. While the Robotics Facility manufactures these vehicles, other buildings are required to expand its capabilities.
Cost: 200 Minerals, 200 Vespene Gas
Robotics Support Bay
Cost: 150 Minerals, 100 Vespene Gas
Observatory
History is of vital importance to the Protoss, as they believe that great events echo across space-time and serve as lessons for those wise enough to study them. Even during the Aeon of Strife, Protoss scribes recorded the wars and their heroes for future reference. The Observatory is a modern refinement of the ancient scribe library, and it is here that the data gathered by the robot Observers is recorded and catalogued for study by future generations of Protoss.
Cost: 50 Minerals, 100 Vespene Gas
Templar Archives
The Templar Archives are dark, mysterious buildings that serve as training centers for the legions of the High Templar. These honored warriors, charged with wielding the awesome psionic powers of their race, use the Archives to directly commune with their ancient ancestors and thereby gain knowledge inaccessible to ordinary warriors.
Cost: 150 Minerals, 200 Vespene Gas
Stargate
The mighty warships of the Protoss fleet require a much stronger warp link than the Gateway provides. The immense Stargate is capable of calling ships from high orbit around Aiur to distant planet surfaces.
Cost: 150 Minerals, 150 Vespene Gas
Fleet Beacon
Easily recognized, the Fleet Beacon is built around a huge sphere painstakingly carved from the largest and purest of Khaydarin crystals. The Beacon focuses Psi through this sphere to strengthen and magnify the warp rift created by the Stargate, allowing it to teleport the largest of the Protoss warships.
Cost: 300 Minerals, 200 Vespene Gas
Arbiter Tribunal
The mighty Arbiter warships, surrounded as they are in a permanent distortion field, are extremely difficult to safely telport. The Tribunal serves as a warp anchor of sorts, strengthening local space-time so that the Arbiters may be brought through the Stargates.
Cost: 200 Minerals, 150 Vespene Gas
Shield Battery
The Shield Battery has a Khaydarin core that absorbs local Psi energy and contains it until it is needed by nearby Protoss warriors. By touching one of the Battery's many energy spokes, any friendly Protoss warrior or vehicle can rapidly recharge its own shield levels. The Battery does have a limited capacity, but will recharge itself over time. Careful deployment of multiple Batteries can spell the difference between victory and defeat in any campaign.
Cost: 100 Minerals
Photon Cannon
The Protoss revel in the glory of personal combat, but they also recognize the need for automated defenses to watch over their colonies. The Photon Cannon fires an encapsulated antimatter sphere similar to that generated by the Dragoon. It is an effective weapon against both air and ground targets. The Cannons are also enhanced with special sensor technology borrowed from the tiny Observer, enabling them to detect cloaked and hidden units. As with all Protoss buildings, care should be taken to provide ample Pylon support for Cannons. Should their link to the Psionic Matrix be broken, they will shut down--thus leaving the way open to the enemies of Aiur.
Cost: 200 Minerals
Produces: Probes
Researches: None
Requires: None

Produces: None
Researches: None
Requires: Nexus

Produces: Zealot, Dragoon, High Templar, Dark Templar
Researches: None
Requires: Nexus

Produces: None
Researches: Ground Weapons- This upgrade enhances the weapons employed by the Probe, Zealot, Dragoon, High Templar, and Dark Templar (100 Minerals, 100 Vespene Gas, +50 for Level 2 and Level 3; +1 to attack for each level)
Shields- This upgrade intensifies the shields of Protoss units. (200 Minerals, 200 Vespene Gas, +100 for Level 2 and Level 3; +1 to Defense for each level)
Ground Armor- This upgrade strengthens the armor worn by the Probe, Zealot, Dragoon, High Templar, Dark Templar, and Reaver. (100 Minerals, 100 Vespene Gas, +75 for Level 2 and Level 3; +1 to Defense for each level.)
Requires: Gateway

Produces: Vespene Gas
Researches: None
Requires: Nexus

Produces: None
Researches: Singularity Charge- By employing technology that restructures antiparticle amplitudes, the Dragoon Phase Disruptor range is extended. (150 Minerals, 150 Vespene Gas; +1 to Attack for Dragoons only)
Air Weapons- This upgrade intensifies the weapons mounted on the Scout, Arbiter and Carrier. (100 Minerals, 100 Vespene Gas, +75 for Level 2 and Level 3; +1 Attack for all Air Units.)
Air Armor- This upgrade strengthens the armor of all Protoss aerial units. (150 Minerals, 150 Vespene Gas, +75 for Level 2 and Level 3; +1 to Defense for Air Units.)
Requires: Gateway

Produces: None
Researches: Leg Enhancements- Zealot power suits can be enhanced with cybernetic boosters that enable these warriors to close on their victims with frightening speed. (100 Minerals, 100 Vespene Gas; +2 Speed for Zealots.)
Requires: Cybernetics Core

Produces: Shuttle, Reaver, Observer
Researches: None
Requires: Cybernetics Core

Produces: None
Researches: Scarab Damage- By synchronizing their electro-magnetic fields, Scarabs are capable of delivering tremendous amounts of concussive damage. (200 Minerals, 200 Vespene Gas; +1 to Attack)
Reaver Capacity- By installing a neoteric micro-manufacturing plant, the Reaver can increase the number of Scarabs that are stored within its hull. (200 Minerals, 200 Vespene Gas; +2 to Attack)
Gravatic Drive- By combining anti-gravity theory with current repulser technology, these engines provide increased speed for the Shuttle. (200 Minerals, 200 Vespene Gas; +3 to Speed)
Requires: Robotics Facility

Produces: None
Researches: Gravatic Booster- By combining anti-gravity theory with current micro-thruster technology, these engines provide increased speed for the Protoss Observer. (150 Minerals, 150 Vespene Gas; +4 to Speed for Observer)
Sensor Array- Observers can be outfitted with enhanced scanners that enable this aerial automation to better gather battlefield intelligence. (150 Minerals, 150 Vespene Gas; +3 to Wisdom for Observer)
Requires: Robotics Facility

Produces: None
Researches: Khaydarin Amulet- By equipping themselves with amulets carved from Khaydarin crystal, the High Templar are able to channel the energies of the Khala with greater efficiency. (150 Minerals, 150 Vespene Gas; +50 Templar energy)
Psionic Storm- By opening their minds and unleashing raw psychic energy, the High Templar can assault multiple enemies at once. (200 Minerals, 200 Vespene Gas; Costs 75 Energy, +15 to Attack when used)
Hallucination- By learning this mental discipline, The High Templar can implant images within the minds of their enemies. While these phantasms have no substance, they are perfect replicas of the original. (150 Minerals, 150 Vespene Gas; Costs 100 Energy, +8 to Speed when used)
Mind Control- The Dark Templar, over many years have learned the skill of controlling one's mind. This ability lasts on the target for the rest of their existence. If it works, it adds to your forces therefore giving you an advantage. (250 Minerals, 250 Vespene Gas; Costs 150 Energy, Brainwashes an enemy into joining your side)
Maelstrom- This attack using mind waves and pure psionic power, utilizes quiet but deadly noises that confuse the enemy, and if they enemy is caught in the area long enough, it could cause internal bleeding of the brain, therefore killing them. (100 Minerals, 100 Vespene Gas; Costs 100 energy.)
Argus Talisman- This talisman carved from the Khaydarin crystals, but made to channel the Dark energies of the Khala, instead of the light, gives all Dark Templar more energy to fight their enemies. (100 Minerals, 100 Vespene Gas; +50 Dark Templar energy.)
Requires: Citadel of Adun

Produces: Scout, Carrier, Arbiter, Corsair
Researches: None
Requires: Cybernetics Core
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Produces: None
Researches: Apial Sensors- Located in the nose section of the Protoss Scout, these special sensors provide longer sight range. (100 Minerals, 100 Vespene Gas; +2 to Speed for all Scouts.)
Gravitic Thrusters- By combining anti-gravity theory with current micro-thruster technology, these engines provide increased speed for the Protoss Scout. (200 Minerals, 200 Vespene Gas; +3 to Speed for all Scouts.)
Carrier Capacity- This upgrade refits the Carrier with additional fighter bays. (100 Minerals, 100 Vespene Gas; +2 to Attack for all Carriers.)
Disruption Web- Corsair pilots can focus their psychic energy through the Neutron Emitters on their vessels, creating a field of Psionic static that disrupts the neural impulses found within most on-board computer systems causing range and melee attacks within the web to be highly inaccurate. (200 Minerals, 200 Vespene Gas; Costs 125 Energy)
Argus Jewel- Made from the same crystals as the Argus Amulet, the Argus Jewel is fitted in the cockpit of the Corsair, giving it more energy to use on it's enemies. (100 Minerals, 100 Vespene Gas; +50 energy for all Corsairs.)
Requires: Robotics Support Bay

Produces: None
Researches: Khaydarin Core- By infusing pure Khaydarin crystals into the heart of the ship's reactor, the Arbiter gains increased energy storage capacity. (150 Minerals, 150 Vespene Gas; +50 energy for all Arbiters.)
Recall- The development of space folding technology allows the Arbiter to act as an anchor point and instantly transport units to its location. (150 Minerals, 150 Vespene Gas; Costs 150 energy)
Stasis- By manipulating space-time fields, the Arbiter can place units in a state of Stasis. While the affected unit cannot move, it is also unaffected in any way by other units. (150 Minerals, 150 Vespene Gas; Costs 100 energy)
Requires: Stargate, Templar Archives

Produces: None
Researches: None
Requires: Gateway

Produces: None
Researches: None
Requires: Forge