Call of Duty: Warzone Blackout, the battle royale mode based on Call of Duty: Black Ops 4, was officially released on December 12, 2018. This launch marked the Call of Duty franchise's first official entry into the popular battle royale genre. Blackout was made available across multiple gaming platforms, including PlayStation 4, Xbox One, and PC, enabling a broad player base to experience its gameplay. As a significant development in Call of Duty's multiplayer offerings, the Blackout mode provided fans with a large-scale survival shooter incorporating familiar Black Ops 4 features and map elements. The rollout across these major platforms helped establish Warzone Blackout as a competitive option within the rapidly growing battle royale market at the time.