Call of Duty Games on Xbox: Counting Releases Across Generations

The count depends on how you define "for Xbox":

• All-time releases on any Xbox: ~20+ titles (CoD 1–3, MW1–3, BO1–2, Ghosts, AW, BO3, IW, MW 2019, BO Cold War, Vanguard, MWII, MWIII, plus spin-offs).
• Current-gen (Xbox One / Series X|S) digitally available: ~10 (MW 2019 onward, plus BC titles).
• Xbox 360 backward compatible on One/Series: Adds ~10 more (CoD 2, 3, MW1–3, BO1–2, Ghosts, AW).

For exact numbers, check the Xbox Store or Wikipedia filtering by platform.