It couldn't have been better for Bethesda, the Fallout Shelter developer! Their amazing new vault management SIM game has now reached a benchmarking 1 billion played sessions. Do note that the app was only launched about a month ago in the iOS market exclusively and it's been a week since it's on Google Play. The recently revealed stats prove that the game was a perfect combination of features and a gameplay that seem to have conquered players within a short time. If it is the 1st time that you hear about this new adventure, do check the trailer below for an idea of what it's all about!