Call of Duty: Warzone

Call of Duty: Warzone was a free-to-play battle royale video game developed by Raven Software and Infinity Ward and published by Activision. The game was released on March 10, 2020, for PlayStation 4, Windows, and Xbox One as a part of 2019's Call of Duty: Modern Warfare and was subsequently connected to 2020's Call of Duty: Black Ops Cold War and 2021's Call of Duty: Vanguard, but did not require purchase of any of the aforementioned titles. Warzone allowed online multiplayer combat among 150 players and featured both cross-platform play and cross-platform progression between the three aforementioned titles.

At launch, the game featured two main game modes: Battle Royale and Plunder. Warzone introduced a new in-game currency system that could be used at "Buy Stations" in and around the map. "Loadout Drops" were a key in-game object allowing players to access and switch between their customized classes and were obtainable through purchase with the Cash currency. Players could also use Cash to purchase items such as "killstreaks" and gas masks. Cash could be found by looting buildings and killing players that had cash on them. At launch, Warzone only offered Trios, a squad capacity of three players; Solos, Duos and Quads were eventually added to the game via post-launch updates.

Upon release, Warzone received generally favorable reviews from critics. Warzone was downloaded by six million people within 24 hours of its initial release; by April 2021, the game surpassed 100 million downloads. A sequel, titled Call of Duty: Warzone 2.0, was released on November 16, 2022. A mobile version of Warzone is also in development. In June 2023, Activision announced that servers for Warzone would be shut down on September 21, 2023 to focus development on Warzone 2.0.