《H1Z1 is a doomsday survival sandbox online game developed by Daybreak company and released on PS4 and Steam platforms on January 15th, 215. The story takes place in the central part of the United States 15 years after the outbreak of zombie virus. Players will be randomly "born" somewhere on the map, and then they will embark on the road of exploring cities and wilderness. Players need to collect resources, build shelters, or join hands with their peers and come in to defend against zombies or other malicious players. The escape mode is a highlight of this game. In February 216, Twitch, one of the largest live broadcast platforms in the world, announced the ranking of viewing time of each game in 215, and H1Z1 ranked sixth. From February 17th, 216, H1Z1 will be separated into two independent games.