Call of Duty: Warzone is a battle royale experience in the 2019 Modern Warfare experience. However, Infinity Ward wanted to make it as available as possible by sharing it with everyone and making it free-to-play. Even those who do not have Modern Warfare can download the game and start playing it.
To download it on a PC, you must first ensure you have a Blizzard account and download the Battle.net launcher to your desktop. You can create a Blizzard account on its official website and following the instructions. You will need to provide them with your name, birthday, email, create a password for the account, and then answer a secret question. After creating your account, return to the Blizzard page and download Battle.net. You can download it for Windows or Mac.
After you download the Battle.net launcher, log into the application with your newly created account. In the upper left section, you should see a tab for the Battle.net shop. In the new tab, the upper section should have a search bar. You want to type in “Warzone,” and the Call of Duty: Warzone title should appear. You can download the game from this page without having the game. However, it is an 80 to 100GB download, so prepare to wait for a good chunk of time.
You do not have to purchase anything when you jump into the game. You have the option to buy the current Modern Warfare battle pass to go along with the game, but it is not a requirement to enjoy the full experience of Warzone.