Plot: DayZ is a survival video game developed and published by Bohemia Interactive. It is the standalone successor of the mod of the same name for the game ARMA 2. Wikipedia
Plot: Critical Ops is a multiplayer first-person shooter video game developed, and published by Critical Force Entertainment Ltd. It was released as Open Alpha in September 2015 for Android and had been in the Open Beta until the official release in November 2018. Wikipedia
Plot: Radiation Island is an action-adventure and survival game by California-based developer Atypical Games. It was initially released on iOS on January 29, 2015, and later also published on Microsoft Windows on November 29, 2016, as well as Nintendo Switch on February 22, 2018. Wikipedia