How to defend against disaters in Fallout Shelter

Beware of Radiation

In the main games, having a bit of radiation is not a big deal. In Fallout Shelter, radiation can be the silent force that brings you to your knees. Always, always, always make sure that nobody in your vault has any radiation. That shit spreads, and will slowly kill your vault. Worse, any dweller with radiation will also have offpsring with radiation. Radiation babies are straight out of Benjamin Button:



Your only means of combatting radiation are science stations, so make sure to make at least one of those for your own protection. You’ll also want to keep your water resources high, because if they drop too low, your dwellers will start suffering from radiation, too.

Prepare For Raiders

Every so often, your vault will come under attack by raiders. You want to deal with raiders quickly and efficiently. I’ve found that keeping my strongest characters (in terms of stats + gear) near the entrance of the vault helps with this, as they don’t have to travel very far to get into combat.



Worth mentioning that you can actually upgrade your vault entrance so it has higher defense. This gives you more time to get your dwellers to the frontline.

[Hot tip: children are useless when it comes to defending the vault.]

Don’t just put dwellers with weapons in the same room as raiders. Help them! Your dwellers will get hurt, but you can administer stimpaks in real time. Chances are good that the dweller won’t be able to off the raider on the first go, so you need to be prepared to follow raiders into whatever rooms they bust into. Once the fight is over, your characters should automatically return to the rooms they work in.