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Training rooms – Rooms for your dwellers to work out so they increase stats. Also ambiently increases your dwellers’ happiness slightly. Radio studio – Dwellers working here attempt to entice passing survivors into joining your vault, unlocked at 20 dwellers.
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Science lab – Produces RadAway packs for radiation treatment, unlocked at 16 dwellers.Medbay – Produces Stimpacks for health maintenance, unlocked at 14 dwellers.Nuka-Cola bottling plant – Supplies both food and water needs in one room, unlocked at 100 dwellers.Start with the former, unlock the latter at 80 dwellers. Water treatment plant / Water purification plant – Creates and stores potable water.Start with the former, unlock the latter at 70 dwellers. Diner / Garden – Produces and stores food.Start with the former, unlock the latter at 60 dwellers.