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Sonya is a modified eyebot owned by Mel. She is used for tunneling in the Commonwealth in 2287.


Bobbi No-Nose brought in several workers to dig through the ground to the Diamond City strongroom, as part of the operation. She was looking for a faster way to dig through the ground after her workers were driven out by mirelurks. Luckily, she had managed to get in contact with a mechanic named Mel, who is skilled in robots. He was working on a tunneling robot named Sonya that could quickly dig through loose ground with a powerful electromagnetic pulse.

Imprisoned for a small-time misdemeanor revolving around the robotic waiter Wellingham, Bobbi hired the Sole Survivor to bust Mel out of jail. He brought Sonya along to the Dig to take over from the workers. Her EMP blasts were put into good use for boring through the Boston underground.

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Essential: yesIcon check
Companion: noIcon cross
Perk: noIcon cross
Merchant: noIcon cross
Repairman: noIcon cross
Doctor: noIcon cross
Rents bed/room: noIcon cross
Starts quests: noIcon cross
Involved in quests: yesIcon check
The Big Dig


  • The Big Dig: After recruiting Mel, he joins the dig alongside Sonya. She is essential for the mission as she is used to blow down the walls which lead to the group's main goal.


Apparel Weapon Other items On death
Military-grade circuit board


  • Sonya Mark 2 may be encountered together with Mel as a random encounter in the wasteland after the quest has been completed. She may already be dead when the player reaches her.
  • Due to the force exerted by Sonya in the Strongroom basement, she will be deactivated.
  • Sonya can be hacked and commanded to follow the player with the appropriate perk.


Sonya appears only in Fallout 4.


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