Call Of Duty -

: A survival mode where players fight waves of undead or complete cooperative missions, originally popularized by the Black Ops sub-series. The Three Main Eras

: Cinematic, single-player stories known for scripted "set-piece" moments and memorable characters like Captain Price and Viktor Reznov. Call Of Duty

: Developed by Infinity Ward, this series shifted focus to contemporary global conflicts and is famous for the 2007 title Call of Duty 4: Modern Warfare . : A survival mode where players fight waves

: Developed by Treyarch, these games often delve into Cold War espionage, sleeper agents, and "mind-bending" narratives. Call of Duty: Black Ops 7 Multiplayer Review : Developed by Treyarch, these games often delve

The franchise typically delivers three distinct gameplay experiences per major release:

: The "roots" of the series, including the original titles and Call of Duty: WWII .

The franchise is primarily divided into distinct sub-series developed by different lead studios: