| title | developer | year | platform | | pop. |
|---|
| Übergame | Duion | 2014 | Linux | shooter | | | label | |
| UCM: Ultimate Combat Mission | Mastertronic | 1987 | ZX Spectrum | shooter Science Fiction | image | | label | |
| UCM: Ultimate Combat Mission | Mastertronic | 1988 | C64 | shooter Science Fiction | image | | label | |
| UFO: Alien Invasion | author | 2012 | Windows | strategy Science Fiction | image | | label | |
| Ultima VII: The Black Gate | Origin | 2001 | BeOS | role-play Fantasy | | | label | |
| Ultima VII: The Black Gate | Origin | 2001 | Linux | role-play Fantasy | image | subject | label | |
| Ultima VII: The Black Gate | Origin;Exult Team | 2000 | Mac OS Classic | role-play Fantasy | | subject | label | |
| Ultima VII: The Black Gate | Origin;Exult Team | 2007 | GP2X | role-play Fantasy | | subject | label | |
| Ultima VII: The Black Gate | Origin;author | 2004 | Xbox | role-play Fantasy | | subject | label | |
| Ultima VII: The Black Gate | Origin;Exult Team | 2004 | Mac OS X | role-play Fantasy | | | label | |
| Ultima VII: The Black Gate | Origin | 2011 | Pandora | role-play Fantasy | | | label | |
| Ultima VII: The Black Gate | Origin | 2003 | Zaurus | role-play Fantasy | | | label | |
| Ultima VII: The Black Gate | Origin | 1992 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultraman: Kaijuu Teikoku no Gyakushuu | Bandai | 1987 | Famicom Disk System | platformer shooter Science Fiction | image | | label | |
| Uncharted 4: A Thief's End | Naughty Dog | 2016 | PS4 | shooter adventure | image | | label | |
| Underworld: The Eternal War | Lucky Chicken Games | 2004 | PS2 | shooter | image | | label | |
| Undying | Dreamworks Interactive | 2001 | Windows | Fantasy | image | subject | label | |
| Undying | Aspyr | 2002 | Mac OS X | Fantasy | | | label | |
| Unearthed: Trail of Ibn Battuta | Semaphore | 2014 | Windows | action/reflex Historical | image | subject | label | |
| Unreal | Epic Games | 2002 | Linux | shooter Science Fiction | | subject | label | |
| Unreal | Epic MegaGames;Digital Extremes | 1998 | Windows | shooter Science Fiction | image | | label | |
| Unreal | Westlake Interactive;Epic MegaGames;Digital Extremes | 1999 | Mac OS Classic | shooter Science Fiction | | | label | |
| Unreal Mission Pack: Return to Na Pali | Legend Entertainment | 1999 | Linux | shooter Science Fiction | image | | label | |
| Unreal Mission Pack: Return to Na Pali | Legend Entertainment | 1999 | Windows | shooter Science Fiction | | | label | |
| Urban Dead | - | 2005 | Internet Only | | image | | label | |
| Urban Terror | Silicon Ice Development | 2000 | Windows | shooter | | | label | |
| Urban Terror | Silicon Ice Development | 2000 | Linux | shooter | image | | label | |
