- XSindrome de China
- XSkiing
- XSky Diver
- XSky Jinks
- XSky Skyper
- XSlot Machine
- XSnoopy
- XSolar Fox
- XSolar Storn
- XSpace Attack
- XSpace Cavern
- XSpace Chase
- XSpace Demons
- XSpace Invaders
- XSpace Jockey
- XSpace Power
- XSpace Robot
- XSpace Ship
- XSpace Shuttle
- XSpace War
- XSpider Fighter
- XSpiderman
- XSpike'n Peak
- XSpringter
- XStar Strike
- XStar Treck
- XStar Voyager
- XStar Wars
- XStar Wars III
- XStarwar Jeidi
- XStreet Racer
- XSubmarino
- XSubterraneo
- XSuper Bird
- XSuper Cobra
- XSuper Futbol
- XSuper Tennis
- XSuperman
- XSurround
- XSword Quest
- XSword Quest
- XTac Scan
- XTarzan
- XTaz
- XTennis
- XTexas Massacre
- XThreshold
- XThunderground
- XTic Tac Toe
Time Pilot