At launch, Warzone featured two primary game modes: Battle Royale and Plunder. These game modes were initially playable in a squad capacity of three players ("Trios"); post-launch updates made the modes playable in other squad sizes, such as Solos, Duos and Quads.
Around the same time the CoD franchise hit the 400 million copies sold milestone, Call of Duty: Warzone, which was released in 2024, reached the 100 million players mark. What sets Warzone apart from other entries in the CoD franchise is that it's a free-to-play battle royale game.