Vault 81?

[Rogue]

Can someone give me a detailed list of finding the secret vault 81 where Curie is?

[Aidanimalz]

I have not completed the vault 81 questline but you have to find the cure to the kids mole rat bite in a lab deep within the ruins of the vault. In that lab you will find the cure and curie

[Vain]

Vault 81 isn't a secret. As you cross the first bridge with the barge underneath it with raiders heading towards diamond city. Turn right and when you get to some ruined houses turn left. Then when you get to the cafe turn right and follow the road.

Or if you are just talking about the secret part of the vault then you have to complete the cat quest and then leave and come back. You can only get in by starting the quest with austin being sick.

[wrighty565]

give blood, eat the fruit, give de luca the jet then rescue the cat and when you come back go to the doctors again

[arnzod]

Vault 81 is south of Oberland Pass. Follow the railroad track south out of town and you will see the vault symbol appear on your hud to your left as you approach it. If you don't know where Oberland Pass is, walk east from Sanctuary until you encounter railroad tracks, follow them south and you will hit it.

[Vain]

Originally posted by wrighty565:

give blood, eat the fruit, give de luca the jet then rescue the cat and when you come back go to the doctors again

You only have to rescue the cat.

[watchdog79]

http://fallout.wikia.com/wiki/Vault_81