PlayStation - X
- X Games Pro Boarder
- X Multiply
- X Racing
- X-2
- X-Bladez - Inline Skater
- X-COM
- X-COM - Terror from the Deep
- X-COM - UFO Defense
- X-COM 2 - Terror From the Deep
- X-Files
- X-Games Pro Boarder
- X-Games Pro Boarders
- X-Ing Air Race Championship
- X-Men
- X-Men - Children of the Atom
- X-Men - Mutant Academy
- X-Men - Mutant Academy 2
- X-Men Mutant Academy
- X-Men vs. Street Fighter
- X-Men vs. Street Fighter (EX)
- X-Men vs. Street Fighter EX
- X-Racing
- X'treme Roller
- X2
- XCOM - Ufo Defense
- Xena
- Xena - Warrior of Princess
- Xena - Warrior Princess
- Xenocracy
- Xenogears
- Xevious 3D/ G+
- Xevious 3D/G+
- XI
- XS Moto