Games
- X-Men: Next Dimension
- X-Men: The Official Movie Game
- X-Wing
- X: Beyond the Frontier
- X2: The Threat
- X2: Wolverine's Revenge
- X3: Albion Prelude
- X3: Reunion
- X3: Terran Conflict
- Xbox Fitness
- Xbox Live Unplugged
- Xbox Music Mixer
- XCOM 2
- XCOM 2 Collection
- XCOM 2: War of the Chosen
- XCOM: Chimera Squad
- XCOM: Enemy Unknown
- XCOM: Enemy Unknown Plus
- XCOM: Enemy Within
- Xenoblade Chronicles
- Xenoblade Chronicles 2
- Xenoblade Chronicles 2: Torna ~ The Golden Country
- Xenoblade Chronicles 3
- Xenoblade Chronicles 3D
- Xenoblade Chronicles X