| Title | Year | Genre |
|---|---|---|
| X Multiply | 1989 | Shooter |
| X the Ball | 1992 | Puzzle |
| X-Day 2 | 1995 | Arcade |
| X-Men | 1992 | Beat em up |
| X-Train | 1999 | Slot machine |
| X2222 | 2000 | Shooter |
| Xain'd Sleena | 1986 | Action |
| Xenon | 1988 | Shooter |
| Xenophobe | 1987 | Action |
| XESS - The New Revolution | 1997 | Arcade |
| Xevious | 1982 | Shooter |
| Xexex | 1991 | Shooter |
| Xingyun Man Guan | 1996 | Mahjong |
| Xor World | 1990 | Puzzle |
| Xtreme Rally / Off Beat Racer! | 1998 | Racing |
| XX Mission | 1986 | Shooter |
| Xybots | 1987 | Action |
| Xyonix | 1989 | Puzzle |
