Horizon: Zero Dawn Wikia


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Machines are the technologically advanced, mechanized creatures which are the dominant species of the land. They typically bear strikingly similar designs to various forms of wildlife, such as avians, deer, and even dinosaurs.


The first machines were created by Faro Automated Solutions as domestic servants, the Focus, and @lfred. However, Faro soon began developing machines built for combat, two of which were the Scarab and Khopesh, heavily-armed robots that could supplant entire armies, hijack other robots, convert biomass into fuel, and replicate themselves, allowing them to operate indefinitely.

The Faro Plague

However, a "glitch" in the Faro machines caused them to ignore commands and begin attacking humans without authorization. The machines replicated faster than they could be destroyed, and began operating as a swarm. Soon, a full-fledged war between humanity and robots began, costing millions of lives and immense destruction. Despite humanity's best efforts, the swarm could not be contained and they devoured biomass wherever they went, eliminating entire cities and ecosystems. Ted Faro, the CEO of Faro Industries, met with a former employee named Elisabet Sobeck in hopes of containing the swarm, but Elisabet found that there was no way of stopping the machines from destroying all life on Earth. However, she proposed a project named Zero Dawn to Ted, stating that it was the only way of ensuring that life on Earth could continue after the machines killed everything.

Zero Dawn was the development of an advanced intelligence known as GAIA that would crack the machine swarm encryption codes, deactivate them, and then re-seed the Earth with plant, animal, and human life. GAIA was aided by 9 subroutines, one of which was HADES, a subroutine that was designed to take control of the terraforming and start it over again if it was unsatisfactory.

GAIA's Machines

The swarm eventually devoured all biomass on Earth, but GAIA managed to succeed in cracking the encryption codes and shut down the Faro machines, then created many different machines modeled off of former animal life to purify the Earth's toxic atmosphere and biosphere. Hundreds of years later, humans were released from the cradles they were created in and began forming primitive tribal societies, not knowing of the "old ones" who came before them. The machines they encountered were docile and generally harmless for many generations. However at one point, an unknown signal caused HADES to go rogue and begin his extinction protocol. HADES attempted to take control of GAIA completely, but GAIA self-destructed before he could do so. The destruction of GAIA led to an event known as the "derangement," leading the HEPHAESTUS subroutine to assume total control of the Cauldron manufacturing facilities, causing machines becoming increasingly aggressive towards humans, and the creation of new, more deadly combat machines.

Machines in the present day are often hunted for their parts and to cull them before they can threaten local populations. They can usually be found in large groups, although some operate in smaller packs. Machines will either run away from or attack humans that they come across, and will completely ignore wildlife. They will never attack each other unless overridden by Aloy or corrupted by the Eclipse and their machines.


The machines have weak spots which can be exposed by shooting off their armor. Some machines can also be hacked, thus changing their behavior and forcing them to aid Aloy with her objectives.[1] The machines vary in size from small, about dog-sized, to as tall as ten stories. Machines can also become corrupted, posing a even bigger threat.

The designs of the machines in-game are not fixed or constant for the entirety of the game. As Aloy hunts and kills more machines, they will eventually 'evolve' and adapt by better protecting themselves with additional armor plates. The number of kills it takes to 'evolve' varies with each machine. Once this 'evolution' of a machine takes place, the player will only ever encounter the more heavily-armored variant. This 'evolution' process only works for machines that are still in production, so the Corruptor and Deathbringer are unaffected.

Types Of Machines


  • The naming convention for the machines is either an active agent or compound noun (or both) excepting the Behemoth and the Metal Devil which draw from mythology.
  • Although the lore mentions that there were many fully automated robots that came before the Chariot Line, there are strangely no signs of these ancient machines, dormant or dead.


  1. Game Informer #82: Woman vs. Machine
Acquisition Class Broadhead - Charger - Glinthawk - Grazer - Lancehorn - Rockbreaker - Scrapper - Snapmaw - Strider - Trampler
Combat Class Ravager - Sawtooth - Stalker - Stormbird - Thunderjaw
Recon Class Longleg - Watcher (Redeye Watcher) - Tallneck
Transport Class Behemoth - Fire Bellowback - Freeze Bellowback - Shell-Walker
Chariot Class Corrupted Machines - Corruptor - Deathbringer - Metal Devil

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