Austin's adoptive grandmother is Dr. Penske, who took him in after his parents died. He is described as having hair that is a "mole rat's nest" by Horatio. The boy is friendly with many of the vault's residents, including Maria Summerset, who gives him extra helpings at the cafeteria. He is also the best friend of Erin Combes, with whom he goes to school. They spend a lot of time together, though he rarely visits when her parents are home, due to their constant fighting.
Interactions with the player character
|This character is essential. Essential characters cannot be killed.|
|This character is involved in quests.|
- Hole in the Wall: Austin is bitten by a diseased mole rat and the Sole Survivor can help by finding a cure. He will die if the cure is not given to him.
- Vault 81 Tour: On the player character's first interaction with Austin, he will offer to take the player character on a tour of the vault for a price of five caps or for free if the player character successfully passes a Charisma check.
His last name is revealed only after completing the tour.
- "Gran says I'm a bottomless pit when it comes to food."
- "Someday, I'm going to check out the Commonwealth. If my gran lets me."
- "I can't wait until I don't have to do school anymore."
Austin Engill appears only in Fallout 4.