

The series originally focused on the World War II setting, with Infinity Ward developing the first (2003) and second (2005) titles in the series and Treyarch developing the third (2006). The most recent title, Call of Duty: Modern Warfare II, was released on October 28, 2022.

Several spin-off and handheld games were made by other developers. The games were first developed by Infinity Ward, then also by Treyarch and Sledgehammer Games. Over time, the series has seen games set in the midst of the Cold War, futuristic worlds, and the modern day. Starting out in 2003, it first focused on games set in World War II.

Join forces with your friends and jump into a battleground with up to 150 players.The game features both cross-platform play and cross-platform progression between both games. Codenamed Operation: Rapid Sunder, it is set in the fictional city of Verdansk, which is loosely based on Donetsk city in Eastern Ukraine, on day 96 of the ongoing in-game conflict. It allows online multiplayer combat among 150 players, although some limited-time game modes support 200 players. Warzone is part of Call of Duty: Modern Warfare but does not require purchase of it.
