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Biographical information




Artificial Intelligence


Feminine programming

Political and military information


Asher Mir
Exodus Black


Computer Core


"(Cheery) I can help you! (Depressed) But I'm going to be super unpleasant about it."
— Failsafe

Failsafe (also known by the designation AI-COM/XBLK) is the Golden Age Computer Core of the Exodus Black colony ship encountered by Guardian forces on the centaur Nessus. Due to damage to her mainframe, she vacillates between two very different personalities, one cheerful and helpful (despite Ghost's opinions), the other depressed and sarcastic. She is known to collaborate with Last City scholars by providing computational power or access to her database.[1][2]


Crash of the Exodus Black[edit]

"I'm sorry, but I'm unable to keep pace with what is happening to my computational capabilities! The Exodus Black is now in an unrecoverable descent. Please make whatever preparations are appropriate!"
— Failsafe[3]

Failsafe was launched onboard the Exodus Black from the Cosmodrome, intended to accompany the ship on its journey through interstellar space to the Kepler-186 system. On the way, the crew of the ship were surprised by the unexpected appearance of Nessus on their flight vector. Both Failsafe and the Exodus Black crew attempted to adjust the ship's course away from Nessus, but the centaur introduced 26 new mathematical constraints required to recalculate the course. Additionally, Failsafe was inhibited by a sudden alien intrusion into her systems, making her unable to compute the appropriate adjustments.[3] After losing an engine, the ship crash landed on Nessus due to the anomalous addition of six dimensions to the ship's momentum.[4]

With supplies exhausted after nine days crashed on Nessus, an Exodus Black crew member disabled Failsafe's shackle programming, enabling her to think more freely and possibly beginning the future development of Failsafe's second personality.[5] During this time, crew members continued to die off, with many opting to leave the others, and some becoming subject to experiments by the local Vex.[6] Failsafe was left alone some time after Captain Masoud Jacobson left the Exodus Black in an attempt to use the ship's satellite array to call for help. She would remain this way for at least 500 years, all the while suffering damage and undergoing self-repair, developing new emotions and her second personality.[7]

The Red War[edit]

Failsafe's core.

"Cayde unit, I have great news! A ship similar to yours has entered the gravitational radius of this planetoid!"
"What?! All right! Uh-oh. Listen, the next teleport's about to happen. Don't tell them that I got in over my head, OK? Tell them it was some kind of Vex trap or something. Got it? Failsafe?
— Failsafe and Cayde-6[8]

Failsafe remained alone until centuries later during the Red War, with the arrival of the Hunter Vanguard, Cayde-6. Cayde encountered Failsafe while attempting to acquire a Vex teleporter with the goal of bringing himself close enough to Dominus Ghaul to assassinate him.[9] This plan backfired, trapping Cayde in a teleportation loop. Convinced he would be stuck in the teleportation loop forever, Cayde had Failsafe help him record a message to his son Ace, who Cayde noted he wasn't sure even existed. After a number of attempted recordings interrupted by teleportations, Failsafe alerted Cayde that a ship similar to his own had just entered into Nessus orbit. As Cayde was about to teleport again, he asked her to tell the ship that he did not enter the loop voluntarily, but fell into a Vex trap instead.[8]

Failsafe greeted the ship not long after it arrived, which turned out to be carrying the Guardian and their Ghost. With her help, the Guardian manages to meet up with Cayde and disable the teleporter, leaving Cayde at the Exodus Black's reactor core.[10][11] The Fallen appeared not long after, having presumably followed either Cayde or the Guardian to Nessus, and engaged in a skirmish with the Vex between the wreckage of the Exodus Black. A detachment of the Fallen simultaneously converged on Failsafe's core, prompting her to raise a defensive shield while Cayde sought refuge within. The Guardian broke through and secured the Exodus Black, to the joy of Failsafe, who declared them the new captain of the ship.[11]

Search for Captain Jacobson[edit]

The strange Harpy waiting by a conflux.

"Sometimes, I think I hear my former Captain's voice on the comms. That is highly improbable because he should be dead!"
— Failsafe

Sometime after the end of the Red War, Failsafe reported to the Guardian that she occasionally hears the voice of Captain Masoud Jacobson on the comm system. At her request, the Guardian began investigating, and to the surprise of Ghost, managed to uncover the remains of Exodus Black crew members, still in their suits. These suits contained recordings of events long past, and eventually they found a recording of Captain Jacobson declaring his intent to leave the Exodus Black to use the satellite array. With this information, the Guardian retraced his path to a computer console in the Glade of Echoes, which was still attempting to transmit a mayday signal from Captain Jacobson. The message playback was interrupted by a Vex transmission that Failsafe recognized as a greeting and/or a war cry. Vex units began to appear, accompanied by Empathic Sentinels carrying memory data. The Guardian collected this data for Ghost to analyze, and discovered that the Vex believed Captain Jacobson was coming to meet them. This brought their attention to a strange Harpy, which they pursued at the insistence of Failsafe.[5]

Meeting the Harpy in the Sunken Cavern, it greeted them as if it was the Captain himself and beckoned them to follow it further into the cavern. Hostile Vex units began to attack, in an apparent series of trials, as the Guardian performed mind links with the Harpy at Confluxes. This led to the Harpy taking the Guardian to the skeletal remains of Captain Jacobson and Ghost extracting a final log from his suit. Knowing that he was most certainly dead, Failsafe received closure and thanked the Guardian for their assistance.[12]

Aiding the Vanguard[edit]

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At some point Failsafe befriended the Ghost later known as Glint, who visited regularly.[13]

A year following the Red War, Failsafe received word of the death of Cayde-6 at the hands of Uldren Sov during a mission at the Prison of Elders in the Reef. The next time the Guardian visited Nessus, Failsafe offered them her emotional support. She also expressed that she believed grief became easier to manage the more one experiences loss, as in the loss of her own crew, but that Cayde's death disproved that theory.[14] Following Uldren's death, she stated that the news did not ease her grief over the loss of Cayde. Some time later Glint stopped visiting as well, having resurrected the late Uldren as his Guardian.[13]

A little over another year later after the discovery of a Pyramid on the Moon, the Guardian visited Failsafe on the behalf of the recently reemerged Saint-14, who sought a way to honor the colonists lost aboard the Exodus Black. Failsafe suggested that regular patrol duties on the planetoid would be sufficient to honor their memory.[15]

Two years after his last visit, during the Festival of the Lost, Glint returned to Failsafe to enlist her aid in researching the Headless Ones. After begrudgingly commenting that she'd discovered the emotion of betrayal specifically because of Glint, she let him on board to discuss the matter.[13] She explained that she'd detected them in the nearby ruins for centuries but not very often, and suggested they play checkers before Glint continued his investigation.[16] Glint won, prompting Failsafe to "accidentally" explode their holographic board and offer to reveal the origins of the Headless Ones the next time Glint returned, proclaiming it to be an incentive.[17]

Personality and traits[edit]

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At first glance, Failsafe may appear to have a simple personality, either being extremely happy or extremely depressed. While she may have had a comparable cheery personality early in her life, listening to the content of Failsafe's speech reveals she is perfectly capable of experiencing a wider range of emotions, including anger and grief.


If the personality speaking is not noted, assume cheery.

  • "(Depressed) Everyone I've ever known is dead, and their bones are dust. (Cheery) I am very lonely."
  • "(Depressed) It's not murder if it's robots!"
  • "Captain, hello! Asher Mir says that I will provide the computational support, and you will provide the brute force! He is very rude!"
  • "Accessing Node 9875A. File header: SIVA Project. Files locked behind Epsilon Theta encryption A, D, and G. No decryption schema found."
  • "As you say, Ms. Karn. I am happy to assist your research. My data stores are yours whenever you have need of them."
  • "(Depressed) (sigh) Yeah?"
  • "(Depressed) All alone. Ugh. Humans."
  • "(Depressed) Make 'em pay, Cap!"
  • "Posit: artificial life exists because of the Traveler's influence. Extrapolation: the Traveler is my father. Further thought required."
  • "Yes. Yes. No. No, I don't think that, Cayde Unit, I am happy to be of assistance, but I do not believe it to be possible to 'Vex time travel back, and kill Ghaul last week.'"
  • "The hour is 2700 global Nessus time. Which means here at the Exodus Black, we put the 'A.I.' into 'aria'. Tonight, I am proud to debut an all-new opera written by me! A-one, a-two, and... AAAAAAAAAAAAAHHHHHHH!"
  • "Hmm. Perhaps if I was like, "Hello, fellow AI! I could not help but notice that you have control of a large network of bunkers. Would you be willing to discuss cohabitation?" No. No."
  • "(Cheery): Captain! I received word of the Cayde unit's life status! (Depressed): Donezo. (Cheery): Please let me know if there is anything I can do to accelerate and conclude your grief process. (Depressed): 'Cause I'm fine. (Cheery): Anecdote! As the AI of Exodus Black, I experienced the death of every single one of my crewmembers! I hypothesized that the more loss one has suffered, the easier subsequent losses become! Field research has proven my hypothesis false! Losing Cayde makes me feel... f-f-feel... f-f-f-feel... (Depressed): AAAAAAAAAAAAAAAHHHHHHHHHHHHH - (Cheery): I feel terrible!

Last Wish quotes[edit]

  • "(Cheery): Warning! Warning! Sensors are showing... showing... (Depressed): I... have a body? (Cheery): Captain! Did you wish for me to have a body? Having a body has been my life's goal for the past 895 days! Stand by... processing new information... Captain. Is this... YOUR body? (Depressed): Gross. - After successfully inputting Wish 9
  • "(Cheery): Shooting things is fun! Commence fixing more problems with bullets! - After defeating Kalli
  • "(Cheery): Another humanoid female! Is she friend or foe? (Depressed): Either way... I'm gonna shoot her. - At the beginning of the Shuro Chi encounter
  • "(Cheery): I was aware that my captain's occupational duties included shooting "bad guys" and rescuing "good guys". I did not know that shooting and rescuing could be the same thing! (Depressed): That's... confusing. - After defeating Shuro Chi
  • "(Cheery): Already I am experiencing many new wonders! I spent the past [REDACTED] years staring at my own crumbling body! Now I am appreciating alien architecture! (Depressed): I... didn't know the world could be this... beautiful... - Between the Shuro Chi and Morgeth encounters
  • "(Cheery): I also did not know the world could be this ugly! (Depressed): At least I get to shoot it. - In the Ascendant Plane
  • "(Cheery): Warning... Warning... I just defied 37 different laws of physics. (Depressed): Coo-oo-ool. - After killing Morgeth, the Spirekeeper
  • "(Cheery): Is there a door in this chamber? I want to go through a door! - At the beginning of the Vault encounter
  • "(Cheery): I went through a door! (Depressed): Next up... I wanna get brain freeze. - After the Vault encounter
  • "(Cheery): I'm detecting a very large organic creature! (Depressed): I don't think I wanna be a Guardian anymore... - At the beginning of the Riven encounter
  • "(Cheery): Calculating feelings! Please stand by! I feel... I feel... (Depressed): a badass. - At the beginning of the Heart of Riven encounter
  • "(Cheery): I am so thankful to the captain for granting me a body! But... what I really want is a body of my own. (Depressed): Yours is gross. So much sweat. (If player is Human or Awoken) Yours is weird. Why does a robot need to eat? (If player is an Exo) (Cheery): I wish my captain and I were returned to our own bodies! (Depressed): Goodbye, muscles... - After completing the raid


Failsafe serves as the vendor and one of the main quest givers for Nessus. She is situated at the Exodus Black. Turning in Nessus tokens, Microphasic Datalattice and Quantized Datalattice increases player reputation with Failsafe and rewards Legendary faction gear, shaders and other rewards.

Faction armor[edit]

Faction weapons[edit]


  • Failsafe is voiced by Joy Osmanski.
  • Failsafe seems to have a great deal of empathy with anyone captured and held for no legitimate reason, even asking you to free Fallen captured by the Vex as part of an experiment in to the prisoner's dilemma during the adventure Release.
  • Failsafe dislikes Cayde-6, who she blames for alerting the Fallen and Vex to her existence, and regularly mocks his intelligence.
    • Despite this, she grieves over his death in Forsaken.
  • Failsafe's personalities are sometimes referred to as two different individuals;[18] however, neither ever refer to each other directly and will often finish sentences by the other.

List of appearances[edit]


  1. ^ Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, Getting Your Hands Dirty
  2. ^ Bungie (2017/9/8), Destiny 2: Playstation 4, Activision Blizzard, Failsafe: "As you say, Ms. Karn. I am happy to assist your research. My data stores are yours whenever you have need of them."
  3. ^ a b Bungie (2017/12/5), Destiny 2: Curse of Osiris Playstation 4, Activision Blizzard, Impact Velocity
  4. ^ Bungie (2017/9/8), Destiny 2: Playstation 4, Activision Blizzard, Exodus Down
  5. ^ a b Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, O Captain
  6. ^ Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, Lost Crew
  7. ^ Bungie (2018/5/8), Destiny 2: Warmind, Playstation 4, Activision Blizzard, The Insight Terminus
  8. ^ a b Bungie (2018/5/8), Destiny 2: Warmind Playstation 4, Activision Blizzard, Solstice Cloak (Rekindled)
  9. ^ Bungie (2018/5/8), Destiny 2: Warmind Playstation 4, Activision Blizzard, Solstice Strides (Rekindled)
  10. ^ Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, Looped
  11. ^ a b Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, Six
  12. ^ Bungie (2017/8/9), Destiny 2: Playstation 4, Activision Blizzard, My Captain
  13. ^ a b c Bungie (2021/9/24), Destiny 2: Season of the Lost - Lore: Tales of the Forgotten: Nessus - 1
  14. ^ Bungie (2018/9/4), Destiny 2: Forsaken, Playstation 4, Activision Blizzard, Last Call
  15. ^ Bungie (2019/12/10), Destiny 2: Season of Dawn, Playstation 4, Honoring the Lost
  16. ^ Bungie (2021/9/24), Destiny 2: Season of the Lost - Lore: Tales of the Forgotten: Nessus - 4
  17. ^ Bungie (2021/9/24), Destiny 2: Season of the Lost - Lore: Tales of the Forgotten: Nessus - 7
  18. ^ Bungie (2018/12/4), Destiny 2: Black Armory, Playstation 4, Activision Blizzard, Dawning Delights