In addition to the internal tasks, as a leader, players must also send people out to explore, collect waste for recycling or bring more survivors outside into the base. Besides, you also need to pay attention to The Vault’s resources and keep them stable and abundant. Your task is to arrange the refugees (Dwellers) in The Vault, build infrastructure properly while also enabling Dwellers to couple and give birth to more generations. To achieve the mutual goal, they have voted you to be their leader. The Vault must be completely self-sufficient in terms of food, water, and energy. To protect what’s left, a group of survival went to a mountainous area and built an underground base called The Vault. The Earth after the catastrophe was devastated and left in ruin, with deaths everywhere. So, was this a “hasty” move from Bethesda? Let’s find out. Some even said that this is just a product made to profit from the Fallout 4 fever. This is a rather "risky" step because, until now, Bethesda Softworks is only known as a game company that specializes in developing products for PC or Console platforms. On June 14, 2015, Fallout Shelter was officially available on iOS, and nearly two months later, this game also arrived on Android.