How did the earth find npc in 50 years?

Game map. Fifty years ago, the world was originally named Warring States Buwu, a strategic competitive mobile game developed by Hangzhou Jedi Technology Co., Ltd. and running on Android and iOS devices. According to official website in the Warring States Period, we can look for npc on the game map, and npc refers to the role that the game arranges roles to arrange handover tasks.