Vex

The Vex are an ancient species linked together by Minds.

Biography and Morphology
The Vex appeared on Venus from an unknown location by way of warp gates that allows them to instantly warp through worlds and time. All attempts to communicate with the Vex have failed, due to their single purpose to expand their species throughout the galaxy, commanded by Axis Minds that single-handedly control whole armies. Their bodies are made of an unknown metal alloy resembling hammered brass,  yet they are not entirely mechanical. Some organic materials are present as well;  if they are decapitated, they will remain active and become more aggressive. Their routines and ceremonies remain mysterious and illogical to humans. They are hostile, unrelenting, and deadly. The Vex despise the Cabal as much as humanity and are constantly fighting them on Mars, keeping Cabal operations from expanding further into the system.

Bungie has described the Vex as having a "fascinating" fiction behind them, "which, in turn, creates one of the coolest deaths in the game."

Geography
The Vex have total control of Mercury and inhabit a massive stronghold on Venus humans call the Citadel. They also have a presence on Mars, and are the sole residents of the Black Garden.

Goblin
Goblins are foot soldiers and cannon fodder that defeat their enemies by overwhelming them in huge numbers.

Hobgoblin
Hobgoblins resemble Goblins, but are larger and can be distinguished by their distinctive tails, as well as differently shaped heads.

Minotaur
Minotaurs are even larger than Hobgoblins, with broad shoulders and three glowing eyes.

Cyclops
Cyclops are large, T-shaped, one-eyed Vex. The Cyclops are known for being one of the strongest if not the strongest non-boss Vex unit. The function of this unit is to block important areas essentially making it a turret emplacement, however this can be used against the Cyclops.

Hydra
Hydras resemble "robotic centipedes", and float through the air to attack from turrets attached to each segment of their wriggling bodies.

Harpy
Harpies are smaller Vex that dart in and out of battle, firing from mouths filled with filaments.

Praetorian
Praetorians are a stronger, more devastating variation of Minotaurs who defend the entrance of the Vault of Glass. It would be foolish for a Guardian to encounter these enemies alone.

Vex Programmings
Currently, nine programmings within the Vex army exist. These include:

Aphix Invasive
The Aphix Invasive is a programming revealed in the official strategy guide. An Axis Minotaur belonging to this programming spawns in the Nexus strike if Guardians camp in the entry to the Nexus.

Descendants
The Descendants is an ancient programming located on Venus, who have been seen multiple times by survivors of the Vault of Glass. They are portrayed in white and gold with exotic attachments to their heads.

Hezen Corrective
The Hezen Corrective is a programming located on Venus, with the primary objective of seeking out and destroying the House of Winter, a faction of the Fallen army. They are portrayed in plain bronze.

Hezen Protective
The Hezen Protective is a programming located on Venus, with the primary objective of defending the Vault of Glass and the Endless Steps. They are portrayed in gold with white stripes.

Precursors
The Precursors is an ancient programming located in Venus, who have been seen in the darkest, deepest portions of the Vault of Glass. They are portrayed in black with characteristics similar to feudal China's military.

Sol Divisive
The Sol Divisive is a programming located in the Black Garden, most of which are frozen in rapture. Very few members of the group are active, but the ones that are, are shown as very religious, due to the word "disciple" appearing in their names. They are portrayed in green with moss hanging from their bodies.

Sol Primeval
The Sol Primeval is a programming located inside of Venus. They are found within the Vault of Glass, where they fight along side the final boss, Atheon, Time's Conflux.

Sol Progeny
The Sol Progeny is a programming located in the Black Garden. This group consists of three massive Vex, who are designated as the protectors of the Black Heart. They are portrayed as giant Minotaurs, with each bearing a different shaped head.

Virgo Prohibition
The Virgo Prohibition is a programming located on Venus and Mars, who are major enemies of the Cabal in the Meridian Bay area, as well as the protectors of the Vault of Glass' door. They are portrayed in blue and black.

Vex Bosses
Nonaligned:
 * Atheon, Time's Conflux
 * Corrective Mind
 * Divisive Mind
 * Prohibitive Mind
 * Sekrion, Nexus Mind
 * Zydron, Gate Lord

Sol Progeny:
 * Eschaton Mind
 * Imminent Mind
 * Primeval Mind

Battle Tactics and Technology
For the Vex, their battles are all about overwhelming numbers and massive armies. Little else is known about their battle tactics, but players should remember that the Vex weak spot is not the head (like with most enemies and for players) but rather the center of their torso, where their glowing power core is vulnerable.

Trivia

 * The Vex are designed to resemble a "classic science-fiction machine race" mixed with the "inscrutable motives of a timeworn Lovecraftian nightmare monster." The result is not a typical science-fiction android race, but rather a "mixture of robots and creatures" that fight their enemies with "endless waves of metal armies".