I just want to start off by saying that the game is fantastic. I was absolutely addicted to it for a week. I had five full stories in my vault, 37 dwellers Level 20+ all assigned to their skill-specific jobs, well-trained in my training rooms, and fully equipped with pistols, shotguns, a Fat Man, mini-gun and even a gatling laser, and plenty of costumes. Then the invasion started...

I had issues with Radroaches in the past where 4 or 5 of them would wipe out a half dozen of my dwellers or more. It was frustrating having to spend all that money to bring them back, and confusing as to why the roaches were so incredibly powerful. However this invasion was unlike any I had seen before. They popped up in every room and began slaughtering my entire vault. This isn't the part I think was a bug in the game. The problem was that they were completely invincible. Every one of my dwellers had a gun and of the 30+ Radroaches that invaded my vault, I don't think a single one was killed. My dwellers unloaded with rockets, shotgun shells, pistols and mini-guns and couldn't kill a single roach. I had to sit there and watch all my hard work obliterated before my eyes. 34 of my 37 dwellers were massacred by roaches. 34. Dead.

Because they were all such high level I found myself strapped for caps trying to revive them all. In 2 days I had revived 20 of them, then when I went on again the rest of the corpses had disappeared. That's 14 well trained, well equipped dwellers gone forever, leaving me with a vault that I can't sustain. I'm trying my best to procreate as fast as possible but I'm completely terrified to even open the app. This is a devestating game-breaking bug that has me too scared to even want to play the game, of fear that these super-roaches will return to finish the job. There is no way Bethesda purposefully programmed a random event like this to occur and cleanse your entire vault. I'm just glad this didn't happen later on when my dwellers were even more well-trained. This was still a devestating hit.

I've searched online for people experiencing this problem and I've found that this is a massive issue the game has been facing. Please address this bug as soon as possible! It needs to be updated. People are terrified to play your game. I had a list of over 10 different links to other forums including this one filled with tons of people with the same issue, but this forum doesn't allow users to post links.

These just represent few of many issues with the Radroaches in this game. I could have continued finding links but I think I've gotten my point across by now.