How do these Radio Stations work exactly? I built one and assigned a Dweller with 10 Charisma to it. There was a timer of 2 hours or so and I expected after this time a new Dweller to appear in front of my Vault. But nothing. So I assigned another Dweller but the timer did not decrease. I upgraded the Radio Station - it said it would increase the chances. After the timer ended: Nothing.

So is it really that with 2 Dwellers locked away for 2 hours in a full upgraded Radio Station there only has a chance of attracting a new Dweller? This seems like a big waste, since I can produce as many new Dwellers as I have female Dwellers and it only takes a few minutes until a women gets pregnant. Is there any advantage in using the Radio Station instead?

  • 1
    It's also worth mentioning that having dwellers in your radio station will provide a happiness boost to your vault. Jun 18, 2015 at 14:45

5 Answers 5


In addition to what's already been mentioned, it is possible to be both pregnant and working in the radio studio. Other comparisons:

  • Pregnant women cannot defend against fire, radroaches, or raiders, so if you have 50% of your vault pregnant, you are very vulnerable.
  • Children consume resources while they are growing up without contributing to the vault. Having fourteen kids around will drain you dry. Dwellers attracted by the radio are ready to work as soon as they arrive.
  • In true Bethesda style, I don't think children can be killed, which means that a bad raider attack could leave you with a vault of just kids, fun.

The Radio Station gives you a full grown Dweller ready to work with only a few hours waiting between Dwellers, if the RNG is in your favor. With pregnancy, you have to wait for the female Dweller to get pregnant, deliver the baby and then the baby has to grow. This takes 6 hours (3 for pregnancy, 3 to grow in adults) compared the Radio Station (only 2 hours) but the former is 100% reliable while the latter may or may not work.

Edit: Adding more Dwellers to the Radio Station will make it operate faster, while upgrading the Radio Station and merging it will increase the chances of attracting a Dweller

  • It takes about 6 hours to get a baby and raise it. A few minutes for the female to get pregnant, 3 hours until the baby is born and 3 more hours until the child is grown up. As you said, it is 100% guaranteed and I currently can "make" 14 babies in parallel (as I have 14 females). And all those 14 females only need to get 5 minutes away rom their job to get pregnant. Is there a chance to attract one of those rare Dwellers with high stats with the radio station?
    – udondan
    Jun 16, 2015 at 16:30
  • 2
    According to the answer to How Do I deliver a Baby's answer, it takes 3 hours for a pregnancy and 3 hours to mature from kid to adult... add in the random amount of time it takes a couple to get busy ... it's still probably only about 6 hours.
    – aslum
    Jun 16, 2015 at 16:32
  • Also there's risk attached to a radio room of a 'critical failure' - after timer for radio room comes to an end there's a chance of bad stuff, e.g. room going on fire. Aug 26, 2015 at 12:43

The other answers are good here, but so far no one has mentioned another benefit of the radio station: It increases the happiness rating of all the dwellers in the vault.

  • 1
    I have not observed this in the slightest. Does anyone have any proof of this? I know the tip says so, but I see absolutely no difference in happiness with or without the radio.
    – DCShannon
    Oct 30, 2015 at 22:56
  • @DCShannon this is a very well documented effect of the radio room. A cursory Google search will give you all the proof you need.
    – Dallium
    Oct 30, 2015 at 23:29
  • My pregnant dwellers are always 100% happy.
    – Nakilon
    Dec 14, 2015 at 23:18

Note: It sounds like the functionality of the radio room has changed so that this answer no longer really applies. I won't be updating it since I don't play the game anymore.

A few people have pointed out some advantages I hadn't thought about, which I found interesting since I've found the radio station to be not only worthless, but harmful.


  • Pregnant women can't deal with incidents, so more of your workforce is available with a radio room. This is easy enough to manage by not having too many women pregnant at a time, and not filling a single room entirely with pregnant women.
  • Dwellers arrive at the vault ready to go, unlike children who must grow. Again, this is easily manageable by not having too many women pregnant at once.
  • Increases happiness. I haven't found this to be true in practice. If it is true, the effect is negligible. It's important to note that procreation raises dwellers' happiness to 100%, so pregnancy raises happiness as well. I've actually found it to be much more effective at increasing happiness than the radio room.
  • The radio room can bring in a dweller in a couple hours, whereas a child takes 6 hours. This is true, but you can produce more people faster and more reliably through pregnancy by having just a couple women pregnant at a time. You can also attempt to engage in eugenics and make extra awesome people.

So there are a number of minor advantages which are easily dismissed if you manage your pregnancies correctly. On the other hand, there's a large drawback: you can't turn it off. If you decide you have enough people and don't have a radio station, you can simply avoid putting anyone in the barracks. But, if you do have a radio station and don't want anymore people, you have limited options, and they all kind of suck:

  • Destroy the station. Build another one when you need it again.
  • Destroy additional living quarters. This requires you to have exactly the correct amount of living quarters for your population all the time. You can't randomly upgrade one for a challenge, or anything like that.
  • Let a line of loiterers build up at your door. This is super annoying.
  • Let some dwellers die (and remove them). Maybe that's your thing. Of course, the radio station will attract replacements, so you'll have to kill them too.
  • Leave the radio unstaffed. The room still draws power, and can still have incidents in it, which is a bigger hassle when there's no one in the room to deal with it.

Taking this into account, I find an empty hole in the ground to be more advantageous than a radio station.

  • Radio rooms don't function without dwellers to run it. That's effectively "turning it off."
    – Dallium
    Oct 30, 2015 at 23:31
  • @Dallium That's a good point, actually, but it still draws power. I'll add that as an option.
    – DCShannon
    Oct 30, 2015 at 23:39
  • @Dallium I also went ahead and included the advantages with rebuttals, to make it more of a direct answer to the question.
    – DCShannon
    Oct 30, 2015 at 23:46
  • This appears to be out of date now. I definitely can turn off a radio station's ability to attract new dwellers while keeping it staffed, by having it just work inside the vault. You still get the happiness that way.
    – Tridus
    Feb 25, 2017 at 20:03
  • @Tridus That's not surprising. I haven't played this game in quite a while, and I know they keep updating it.
    – DCShannon
    Feb 27, 2017 at 17:03

I've had the radio station for two and a half days and I've received 3 dwellers with it so far. I only have 1 radio station that's been upgraded and it has 2 dwellers in it. I must be really lucky to have been so successful with it so far but I think it's great. I still make some of my woman pregnant but I think it's really important to try and get new dwellers via wasteland cause it's never bad to have a new blood line in your vault. Especially since a daughter can't mate with her father and a son can't mate with his mother so I almost ran out of available men and woman before the radio station.

  • You could have made a couple to mate again.
    – John
    Oct 10, 2016 at 19:00
  • @John Not if a homebrew challenge (similar to Pokémon Nuzlocke) prohibits that.
    – Egor Hans
    Dec 3, 2017 at 20:15

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