Question: what was the first call of duty game ever made
Answer: Call of Duty Genres First - person shooter Developer ( s ) Primary Infinity Ward ( 2003 -- present ) Treyarch ( 2005 -- present ) Sledgehammer Games ( 2011 -- present ) Other ( show ) Raven Software Nerve Software Gray Matter Interactive Nokia Exakt Entertainment Spark Unlimited Amaze Entertainment n - Space Aspyr Rebellion Developments Ideaworks Game Studio nStigate Games Neversoft Certain Affinity High Moon Studios Beenox Mercenary Technology Kuju Entertainment Publisher ( s ) Activision Platforms Microsoft Windows OS