Way too many attacks for me. I've had it happen every day now for the last three days killing most of my people. WTF?!?!?

rapidly getting tired of even bothering to play the game.

Their patterns are pretty predictable, they'll go from the entrance to the end of your vault and then back track until they find a way down and then zigzag their way to the bottom in this fashion depending on your layout you probably have several rooms they won't hit, which you can place weakened dwellers while dealing with them, if you want to avoid the encounters don't broadcast on the radio and avoid opening your vault doors

In my game, the deathclaws started showing up when I got up around 75 dwellers. When the number of dwellers decreased (due to all the deaths) they stopped coming at all, until I got the population back up again. Before they came back, I built and upgraded more medbays (fully staffed with dwellers who have high intelligence) so I'd have more stimpaks to keep everyone alive. I also built and upgraded my training rooms, which are used to improve your dweller's SPECIAL - especially things like strength, perception and luck - so they'll stand a better chance. Arm every dweller with the best weapons you can, and put your strongest and best-armed dwellers on levels 1, 2 and 3. You can also post 2 guards at the vault entrance. Give them the best weapons and armor of anyone in the vault. A Mr. Handy on levels 1-2-3 doesn't hurt. Keep your radio turned off and don't open the vault doors. Whenever you do, expect an attack.

the deathclaws started hitting me at 60 which i hit yesterday. my top floor only has one elevator down and it is next to the entry as is everyones. it drops one floor then then the elevator is at the other end for three floors then the next three floors is back to the left end again. so far the furthest they get is one full trip through the first floor to the end then back while i am pumping stim packs while it happens. then they make it half way to the elevator on the second floor then die. granted i burn through all my stim packs but so far no deaths. and yes they come much too rapidly. but it's fallout! play on!