- XSeaquest
- XSex Man
- XSky Driver
- XSmurf
- XSmurfs
- XSnoopy
- XSpace Cavern
- XSpace Invader
- XSpace Invaders
- XSpace Master
- XSpider Fighter
- XSpider Man
- XStar Master
- XStar Trek
- XStar Trek - Strategic Operations Simulator
- XSubterrânea
- XSuper Cobra
- XSuper Soccer
- XSuper Tenis
- XTape Worm
- XTaz
- XTênis
- XTime Pilot
- XVanguard
- XVideo Pimball
- XVolei
- XWorm War
- XX-Man
- XYear's Revenge
- XZaxxon