I've been playing Fallout Shelter since the night it came out. My vault is about 5 or 6 stories deep and almost everyone had a weapon of some sort. I was doing really good and then some radroaches attacked my living area, so I sent some people over the kill them. My guys killed all but one. This one radroach would not die, no matter how much it was getting shot. it kept killing all of my guys I sent to the room untill all of my guys with weapons had died, then the radroach started to spred to the other rooms and finshed everyone off.. EVERYONE. Im not complaining, Im okay with restarting this early in the game (glad this didnt happen 1 month into game) I just to want to make know to this extremely game breaking bug.. By the way Im playing on a Iphone 6 plus.

*hehe game breaking "bug"* literally that made me laugh. Radroaches killed most of my first vault (I probably could have continued but decided to restart). Second vault had a radroach attack again that again killed most of the population so I tried to rebuild. Another rad roach attack killed all except 3 residents, including my adventurer. Not sure if I'm going to try and revive everyone or restart.

I've had a few radroach indfestations, but only one really large one. They were in several rooms at once, or at least switched rooms so fast I couldn't keep up. Using stimpaks and arming people in whatever room they went to, I finally killed them off without casualties.

I've seen several people complain about these attacks, but I haven't seen them be as severe as others.

in my experience they are mostly harmless but an occasion it seems more like deathclaws then radroachs. in one invasion they killed i think 4 guys 3 of which were armed and armored

lol, i had a similar experience, i am only laughing now, cause i was able to recover and rebuild my vault back to the 90+% rating, but yah so i was like 98% rating and than one living room area had an infestation, this is where the game gets all choppy and as i send over a unit carrying a shotgun from the next room the stupid game crashes. I quickly try to load it backup and while i am waiting, all i can hear is the alarm still blaring in the background as i am waiting for the game to actually load up, eventually it does and the roaches have spread to like 3 other rooms and i am trying to fight them off throughout the sluggisheness, while i am spamming all my stimpacks. Finally, after i killed them all, they had managed to infest 5 rooms, killed 6 of my dwellers and brought my rating's meter crashing down like the great depression ended up with like 27% or so. So yah during this meltdown, i was pissed cause it set me back several hours, due too the poor performance and constant crashes. This is already my 2nd vault, my first vault has a game ending bug and it keeps on failing to load. Hopefully they can fix these issues soon, otherwise i will just move on to another game. Also i am playing from my ipodtouch 5, they should just release this for the pc on the windows store!