Call of Duty: Black Ops - Cold War. There are also more than a dozen spin-off titles and altered ports that add depth to the first-person shooter series. The games originally started as World War II-era shooters before moving into modern and even futuristic settings.
The Call of Duty games can be broken down into three subseries: The first three games, Call of Duty 1-3, make up the first set. From there, Call of Duty 4: Modern Warfare begins a separate subseries, in which each game has "Warfare" in the title - Advanced Warfare, Infinite Warfare, Modern Warfare 2, etc. Finally, there's the Black Ops series, which was actually kicked off by Call of Duty: World At War and continued on to COD: Black Ops 1-4 and Cold War.
The key difference between the Black Ops and Warfare subseries are their developers. Infinity Ward developed the original COD and its sequel, and Treyarch came on for Call of Duty 2: Big Red One, an side-story for the second COD. Treyarch then hung around to develop the standalone Call of Duty 3. Infinity Ward came back for COD 4: Modern Warfare, which began a cycle that saw both developers switch off producing games. That cycle continued until 2014's Call of Duty: Advanced Warfare, which was developed by Sledgehammer Games. In the last five years, these three developers have rotated, with one main-series game being released every year.
Call Of Duty's Main Series Games & Spin-Offs, Explained
There are plenty of Call of Duty: Warzone, a battle royale spin-off with canonical elements.
Overall, there are 17 main-series games in the Call of Duty series. This number includes the Warfare series, the Black Ops series, and the original Call of Duty trilogy. In addition to these, there are 15 other Call of Duty games (not counting remasters), including spin-offs like Call of Duty: Ghosts, side-stories like Call of Duty 2: Big Red One, significantly altered ports, mobile games, and standalone projects like Warzone. The total, then, of unique Call of Duty games is a whopping 32. In the future, fans are looking at a schedule that includes an annual full game release alongside substantial yearly maintenance for the free-to-play Warzone, and fans have already seen leaks about next year's Call of Duty.
