The Call of Duty game that has sold the most copies is Call of Duty: Modern Warfare (2019).
This game was a massive success, selling over 30 million copies in its first month of release and becoming the best-selling game of 2019. Its popularity is attributed to several factors, including:
- A successful reboot of the Modern Warfare series: The game was a reboot of the popular Modern Warfare series, which had been dormant for several years. This brought back nostalgic fans and attracted new players.
- A compelling campaign: The game featured a gripping and emotional campaign that received widespread critical acclaim.
- A polished and engaging multiplayer experience: The game's multiplayer mode was widely praised for its balanced gameplay and variety of maps and modes.
- Cross-platform play: The game supported cross-platform play, which allowed players on different platforms to play together.
Modern Warfare (2019) has since been followed by several other successful Call of Duty games, including Call of Duty: Black Ops Cold War and Call of Duty: Vanguard. However, Modern Warfare (2019) remains the best-selling game in the franchise.