- X Rebirth
- X-Blades
- X-COM: Apocalypse
- X-COM: Enforcer
- X-COM: Interceptor
- X-COM: Terror From The Deep
- X-COM: UFO Defense
- X-Men
- X-Men 2: Clone Wars
- X-Men Legends
- X-Men Legends II: Rise of Apocalypse
- X-Men Mutant Academy 2
- X-Men Origins: Wolverine
- X-Men Origins: Wolverine Uncaged Edition
- X-Men vs. Street Fighter
- X-Men: Children Of The Atom
- X-Men: Destiny
- X-Men: Mutant Academy
- X-Men: Mutant Apocalypse
- X-Men: Next Dimension
- X-Men: The Arcade Game
- X-Men: The Official Game
- X-Morph: Defense
- X-Plane 11
- X: Beyond the Frontier
- X2: The Threat
- X2: Wolverine's Revenge
- X3: Reunion
- X3: Terran Conflict
- X4: Foundations
- Xanadu Next
- XBlaze Code: Embryo
- XBlaze Lost: Memories
- XCOM 2
- XCOM: Chimera Squad
- XCOM: Enemy Unknown
- Xena: Warrior Princess
- Xeno Crisis
- Xenoblade Chronicles
- Xenoblade Chronicles 2
- Xenoblade Chronicles 3
- Xenoblade Chronicles X
- Xenogears
- Xenon
- Xenon 2: Megablast
- Xenon Racer
- Xenon Valkyrie+
- Xenonauts
- Xenoraid
- Xenosaga Episode I: Der Wille zur Macht
- Xenosaga Episode II: Jenseits von Gut und Böse
- Xenosaga Episode III: Also sprach Zarathustra
- XenoShyft
- Xenowerk
- Xenus 2: White gold
- Xeodrifter
- XERA: Survival
- Xevious
- Xevious 3D/G
- XGRA: Extreme G Racing Association
- Xiaolin Showdown
- XIII
- XO
- Xotic
- Xpand Rally
- Xuan Yuan Sword: The Gate of Firmament
- Xuan-Yuan Sword VII
- Xybots