“Build a brighter future underground with the all-new Vault-Tec Workshop. Create a massive Vault and attract new Dwellers using pre-war industrial kits complete with retro-nostalgic furniture, lighting, and art. And like every good Overseer, run Vault-Tec approved experiments on your Dwellers to learn what makes an ideal citizen. Vault-Tec has given you the tools, the rest is up to you!”— Official description
Vault-Tec Workshop is the fifth add-on, and third workshop add-on for Fallout 4. It triggers automatically once level 20 is reached and the player character is outside the Institute. It will also trigger upon traveling to Quincy Quarries, which is south of Jamaica Plain.
Several objects added are clean versions of the dirty equivalents in the base game.
Most prefabricated tiles already have wiring built in and the vault power conduits can transfer power from and to adjoining structures.
Vault prefab structures cannot be built outside Vault 88 until the quest Lady Luck is complete.
Behind the scenes
Vault dwellers in the add-on repeat idle dialogue lines that previously appeared in Fallout Shelter such as, "Who do you think would win in a fight, a lumberjack with tentacle arms or a shark riding a unicycle?"
Lead artist Ryan Sears and lead developer Kurt Kuhlmann describe the constructible vault door as a scaled-down 1x3 tiled-version of those seen in Fallout.
A bug can occur in the DLC wherein a supply line appears between Vault 88 and another random settlement. The trigger for this is unknown, but it can occur at any point after the initial quest is given, even before gaining access to the Vault 88 workshop.