| title | developer | year | platform | | pop. |
|---|
| X-COM: Apocalypse | author | 2014 | Linux | strategy Science Fiction | | | label | |
| X-COM: Apocalypse | Microprose | 1997 | MS-DOS | strategy Science Fiction | image | subject | label | |
| X-COM: Terror from the Deep | Microprose Software | 1995 | MS-DOS | strategy turn-based Science Fiction | image | subject | label | |
| X-COM: Terror from the Deep | ? | ? | 3DO | strategy turn-based Science Fiction | | | label | |
| X-COM: Terror from the Deep | ? | ? | Pandora | strategy turn-based Science Fiction | | | label | |
| X-COM: UFO Defense | Mythos Games | 1994 | MS-DOS | strategy turn-based Science Fiction | image | subject | label | |
| Xeno Crisis | Bitmap Bureau | 2020 | Dreamcast | shooter | image | | label | |
| Xeno Crisis | Bitmap Bureau | 2021 | Neo-Geo | shooter | | | label | |
| XIII | Ubisoft Paris | 2003 | Windows | action/reflex shooter Cartoon | image | | label | |
| Xplora 1: Peter Gabriel's Secret World | Real World Multimedia | 1993 | Mac OS Classic | adventure | | | label | |
| Xtom 3D | Jamie System Development | 1999 | Windows | shooter | | | label | |
| Xump: The Final Run | Retroguru | 2014 | Amiga | puzzle | | | label | |
| Xump: The Final Run | Retroguru | 2014 | Linux | puzzle | | | label | |
| Xump: The Final Run | Retroguru | 2014 | Mac OS X | puzzle | | | label | |
| Xump: The Final Run | Retroguru | 2014 | Windows | puzzle | | | label | |
