| title | developer | year | platform | | pop. |
|---|
| Pocket UFO | SMK Software | 2006 | WinCE | strategy turn-based Science Fiction | | | label | |
| Pocket UFO | SMK Software | 2006 | Windows | strategy turn-based Science Fiction | image | | label | |
| Pocket UFO | SMK Software | 2006 | Mobile | strategy turn-based Science Fiction | | | label | |
| X-COM: Alliance | Hasbro Interactive | 1999 | Windows | Science Fiction | | subject | label | |
| 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: Collector's Edition | MicroProse | 1999 | Windows | strategy Science Fiction | image | | label | |
| X-COM: Enemy Unknown | Microprose | 1995 | PS | strategy turn-based Science Fiction | image | subject | label | |
| X-COM: Enforcer | Microprose | 2001 | Windows | action/reflex shooter Science Fiction | image | | label | |
| X-COM: Genesis | Hasbro Interactive | 1999 | Windows | strategy Science Fiction | | subject | label | |
| X-COM: Interceptor | Microprose | 1998 | Windows | shooter flight Science Fiction | image | subject | label | |
| X-COM: Terror from the Deep | Microprose | 1996 | PS | strategy turn-based Science Fiction | image | | 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 | Microprose Software | 1999 | Windows | 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 | 1999 | Windows | strategy turn-based Science Fiction | | | label | |
| X-COM: UFO Defense | Mythos Games | 1994 | MS-DOS | strategy turn-based Science Fiction | image | subject | label | |
| X-COM: UFO Defense | Mythos Games | 1994 | Amiga AGA | strategy Science Fiction | image | subject | label | |
| X-COM: UFO Defense | Mythos Games | 1994 | Amiga CD32 | strategy Science Fiction | image | | label | |
