| Title | Platform | Genre | Release Date |
|---|---|---|---|
| X | PSP MOVIE | Other | na |
| X Rebirth | PC | Simulation | Nov 15, 2013 |
| X SuperBox | PC | Strategy | Nov 30, 1999 |
| X-Blades | PC, X360, PS3 | Action | Feb 10, 2009 |
| X-Com: Apocalypse | PC | Strategy | Jun 30, 1997 |
| X-Com: Email Games | PC | Strategy | Jan 1, 1999 |
| X-Com: Enforcer | PC | Action | Apr 19, 2001 |
| X-Com: Terror from the Deep | PC | Strategy | Feb 28, 1995 |
| X-Com: UFO Defense | PC | Strategy | Dec 31, 1993 |
| X-Men | PSP MOVIE | Other | na |
| X-Men Arcade | X360, PS3 | Action | Dec 15, 2010 |
| X-Men Legends | PS2, XBOX, GC | RPG | Sep 21, 2004 |
| X-Men Legends II: Rise of Apocalypse | PS2, XBOX, GC, PSP | Action RPG | Sep 20, 2005 |
| X-Men Next Dimension | GC, XBOX, PS2 | Fighting | Oct 18, 2002 |
| X-Men Origins: Wolverine | PC, WII, PSP, DS, PS2 | Action | May 1, 2009 |
| X-Men: Battle of the Atom | ANDROID, IPHONE OS | Strategy | na |
| X-Men: Destiny | WII, DS | Action | Sep 27, 2011 |
| X-Men: The Official Game | PS2, XBOX, GC, X360, PC, DS, GBA | Action | May 16, 2006 |
| X-Scape | DS | Action | May 31, 2010 |
| X-wing Alliance | PC | Simulation | Feb 28, 1999 |
| X2: The Threat | PC | Simulation | Dec 3, 2003 |