Sims Apocalypse Challenge. Rules: You must create 2 Adults, 1 Teen and 1 child. They must be 2 males, 2 females. (Vampires and Aliens are okay) You may have pets. Once inside the fallout shelter your sims and pets CAN NOT leave. No outside Sims may enter the shelter. Your Sims must repair, grow and sustain themselves, including pay their bills without ever leaving. All Sims must remain in the shelter until youngest Sim is an elder. #fallout #shelter #apocalypse #end #challenge