Warzone Caldera, the first iteration of the landmark free-to-play Call of Duty mode that radically transformed Activision-Blizzard's business, is officially closing shop on September 21, 2024. The mode will be pulled offline on all platforms and gamers will need to move over to Warzone 2.0.

Yes, Warzone is free in Modern Warfare 3.\n\n The cost of buying Modern Warfare 3 for multiplayer, campaign, and Zombies, however, is a different story.