Top 3 Highest-Grossing FPS

The Call of Duty franchise leads with over $30 billion in revenue, followed by the Halo series surpassing $6 billion, and Battlefield with over $4 billion.

Sources

• The Best-Selling FPS Games of All Time — And Some of These Will Shock You - Medi
• quora.com
• Best-selling first-person shooter (FPS) videogame series - Guinness World Record

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