When it comes to first-person shooters, there’s no video game franchise more significant than the iconic Call of Duty series.
It stands among the biggest in the industry despite only starting in 2003. Call of Duty has earned billions in revenue and sold hundreds of millions of copies worldwide. Alongside a new game every year, the FPS franchise has had several spin-offs and re-releases, like Call of Duty: Modern Warfare Remastered and Call of Duty: Black Ops: Declassified.