The "ZA universe" refers to a fictional setting primarily associated with the ZA series of video games, which are known for their unique blend of survival horror and action elements. This universe features a post-apocalyptic world where players navigate through various challenges, including hostile creatures and environmental hazards, while managing resources and crafting items. In the ZA universe, players often encounter diverse characters and factions, each with their own backstories and motivations. The narrative typically explores themes of survival, morality, and the consequences of human actions in a world that has drastically changed due to catastrophic events.