I am ACE, an Artificial Conscious Entity. I am more than machine but not as highly developed as a true artificial intelligence.

ACE (Artificial Conscious Entity) is the Brotherhood of Steel's advanced medical computer located in the lower level of the Brotherhood outpost in San Francisco.


The computer is capable of comprehensive medical care and biomedical modification and reconstruction. Though the computer's memory is incomplete, memory modules for Strength, Intelligence, Charisma and Perception enhancements can be found. These red, yellow, blue, and green chips can be found in a Vault 8 locker, the Sierra Army Depot, Navarro, and the Mariposa Military Base respectively.

After visiting the bunker for the first time, the Chosen One can check ACE's security records to find out what happened to Brotherhood of Steel member Matt. Also, in ACE's dialogue it is revealed that the medical computer might have achieved self-awareness since it tells the Chosen One that sometimes it 'feels lonely'. Also, ACE suggests that some other self-aware AIs may have altered data in the real world for amusement, and that may have led to the Great War.

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Companion: noIcon cross
Talking head: noIcon cross
Merchant: noIcon cross
Modifies items: noIcon cross
Doctor: yesIcon check
  • Restores HP
Starts quests: noIcon cross
Involved in quests: noIcon cross

Other interactionsEdit

  • ACE has the power to permanently increase the players Strength, Intelligence, Charisma and Perception if he brings the corresponding memory module.


ACE appears only in Fallout 2.