Exo

Exo
Overview
Homeworld:	Enceladus Earth
Focal world(s):	Earth
Goals:	Revive the Traveler Reclaim the Solar System Rebuild civilization
At war with:	Cabal Fallen Hive Taken Vex
Distinctions:	Self-aware war machines
Average lifespan:	Indefinite
Notable group(s):	Clovis Bray Guardians Iron Lords Ishtar Collective
Notable individual(s):	Cayde-6 Saint-14 Felwinter Ada-1

"Ask yourself: what threatened your Golden Age ancestors so much that they constructed the Exos to defend themselves?"

— —Grimoire card blurb

Exos are self-aware war machines built by humanity in the Golden Age.

Overview

The Exos were the brainchildren of Clovis Bray, though the motive for their creation remains a mystery. During the Collapse, the Exos' memories were shattered and nigh-all knowledge of their origins lost as well. In the Dark Age that followed, the Exos helped build the Last City alongside their organic brethren, with many going on to become Guardians.

History

The Exos were built during humanity's Golden Age [7] for a long forgotten struggle [9], possibly against the Vex [10], with the purpose of protecting their creators [11]. Rasputin was once involved in their command, a fact that some Exos dimly remember [12][13]. The conflict itself has long been forgotten and the Exo remain ciphers, even to themselves, for their purpose has been forgotten as well [9]. But there is one clue to their origins; many Exos experience a dream they call Deep Stone Crypt, or the "place where they were born" [14]. It is described as "the infamous subroutine which seeded the first Exo consciousness" [15]. Cayde-6's memories stretch further, where he recalls being a human before traveling to Enceladus, an icy moon of Saturn, to become an Exo, as he "came there in flesh and bone. Gave everything to the ice. Started over. Rebooted" [5].

The Exo is a robotic body with an uploaded human consciousness. The technology to encode the latter into the former was developed by Clovis Bray. This existence is not naturally sustainable; early Exos suffered from a condition known as Dissociative Exomind Rejection (DER), a serious and ultimately fatal cognitive disorder caused by the human mind rejecting its new body.

Clovis Bray discovered that DER could be staved off by two particular methods. The first was the "reboot", erasing the mind's memories post-transfer so that it would not remember its old body and so better accept the new one. While effective, it was not a cure, and the reboot procedure would often be repeated several times over the Exo's life. It would also be used for functional purposes, such as restoring Exos whose minds had become "compromised". Successive reboots cumulatively eroded an Exo's mind and their ability to retain any memories at all [3][4]. Clovis Bray estimated that the maximum number of times an Exo could be rebooted was around 20. Not all reboots completely remove past memories, though, especially for Guardians [5] and some can gain access to these buried memories by purposefully dying or killing themselves [6]. Every Exo has a number appended to their name that signifies the number of reboots they have experienced [4].

The second method Clovis Bray used to prevent DER was to introduce familiar organic conceits into the Exo's mechanical body, such as the drive to eat or reproduce. While these "humanisms" were not functionally necessary, they nevertheless reduced the chances of DER developing.

Exos appear unyielding and tireless [7]. Mechanically, they are so advanced that only a Ghost can comprehend their inner workings. In many ways, Exos like to think of themselves as human, or having human minds in machine bodies [8].

Known Exos

• Ada-1 - Golden Age survivor and the head of the Black Armory.
• Anahera-3 - A Hunter who thought they might fall in love with their gun if it got smarter.
• Banshee-44 - The Tower Gunsmith.
• Cayde-6 - The former Hunter Vanguard.
• Cron-8 - A renowned SRL racer.
• Eriana-3 - A female Exo who was a part of Eris Morn's ill-fated fireteam organized to kill Crota, Son of Oryx.
• Exo Stranger - A mysterious female Exo known for observing Guardians. She is not a Guardian herself and lacks a Ghost.
• Felwinter - A former Warlord who became an Iron Lord. Felwinter Peak is named after him.
• Lakshmi-2 - A female Exo who represents the interests of the Future War Cult in the Tower.
• Lilavati-12 - A brash Exo who refused to "follow the orders of a craven and a sycophant."
• Redrix-3 - A Guardian who fought in the Crucible.
• Saint-14 - A deceased Guardian known for his valiant feats who was beloved by virtually everyone he met.
• Shiro-4 - A Vanguard Scout, adviser, and friend to both Cayde-6 and Lord Saladin Forge who resides in Felwinter Peak.
• Taeko-3 - A member of the Praxic Warlocks who helped make the Zen Meteor. She later sacrificed her life to help destroy Savathûn's Song.
• Tango-9 - A Vanguard Marksman.
• Tinasha-3 - A Warlock who took the name Ashraven and joined the Iron Wolves. Known for her prowess in the Iron Banner.
• Caliban-8 - A Hunter who became the second Hunter Vanguard, succeeding Tallulah Fairwind after her death during the Great Ahamkara Hunt.
• Gaunt - An Exo gunsmith known for the fusion rifle known as 77 Wizard.

Trivia

• During their presentation at the 2013 Game Developers Conference, Joseph Staten and Christopher Barrett revealed the Exos as a playable race and described them as being "sinister, powerful, and tireless war machines".
• Exos were stated to be emotionless in a preview. Game interactions appear to contradict this.
• Exos are able to eat and drink despite being machines - and not having stomachs.

Gallery

• 

  Cayde-6, Exo Hunter.

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  Banshee-44, Exo gunsmith.

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  An Exo Warlock on The City.

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  Facial customization of an Exo.

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  Rasputin as an Exo in pre-Alpha

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List of appearances

• Destiny (First appearance)
  • The Dark Below
  • House of Wolves
  • The Taken King
  • Rise of Iron
  • The Dawning
• Destiny 2
  • Curse of Osiris
  • Warmind
  • Forsaken
  • Black Armory