- X-Morph: Defense (Xbox One)
- Xbox Fitness (Xbox One)
- Xbox Retro Classics (Xbox Series X|S)
- XCOM 2 (Xbox One)
- XCOM: Enemy Unknown (Xbox 360)
- XCOM: Enemy Within (Xbox 360)
- XDefiant (Xbox Series X|S)
- Xeno Crisis (Xbox One)
- Xenon Racer (Xbox One)
- Xenoraid (Xbox One)
- XenoRaptor (Xbox One)
- Xuan Yuan Sword 7 (Xbox Series X|S)