| title | developer | year | platform | | pop. |
|---|
| ULarn | ? | 2005 | BeOS | adventure role-play | | | label | |
| Ultima III: Exodus | Newtopia Planning | 1988 | MSX2 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1985 | C64 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1988 | Amiga | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1986 | Atari 400/800 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1988 | Atari ST | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Pony Canyon | 1987 | Sharp X1 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | ? | 1997 | Apple IIGS | role-play Fantasy | | | label | |
| Ultima IV: Quest of the Avatar | Newtopia Planning | 1987 | NEC PC9801 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Pony Canyon | 1988 | X68000 | role-play Fantasy | | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1992 | FM Towns | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin Systems | 1985 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima IV: Quest of the Avatar | Pony Canyon | 1987 | NEC PC8801 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1990 | Master System | role-play Fantasy | image | subject | label | |
| Ultima IV: Quest of the Avatar | Newtopia Planning | 1987 | MSX2 | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1987 | MICRO 7 - FM7 | role-play Fantasy | | | label | |
| Ultima IV: Quest of the Avatar | Origin | 1985 | Apple II E | role-play Fantasy | image | subject | label | |
| Ultima IX: Ascension | Origin | 1999 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Ultima Underworld I: The Stygian Abyss | ZIO Interactive;Floodgate Entertainment | 2002 | WinCE | action/reflex role-play Fantasy | | | label | |
| Ultima Underworld: The Stygian Abyss | Electronic Arts | 1993 | FM Towns | action/reflex role-play Fantasy | | | label | |
| Ultima Underworld: The Stygian Abyss | Blue Sky Productions | 1992 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima Underworld: The Stygian Abyss | Blue Sky Productions | 2012 | Mac OS X | role-play Fantasy | | | label | |
| Ultima Underworld: The Stygian Abyss | Blue Sky Productions | 1993 | NEC PC9801 | action/reflex role-play Fantasy | image | | label | |
| Ultima Underworld: The Stygian Abyss | Looking Glass Technologies | 1997 | PS | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Infinity Co. | 1990 | X68000 | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Origin | 1988 | C64 | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Imagitec Design | 1990 | Amiga | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Binary Vision | 1989 | Atari ST | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Origin | 1988 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Origin | 1987 | Apple II E | role-play Fantasy | image | subject | label | |
| Ultima V: Warriors of Destiny | Origin Systems | 1988 | C128 | role-play Fantasy | | | label | |
| Ultima V: Warriors of Destiny | Infinity Co. | 1990 | NEC PC9801 | role-play Fantasy | image | | label | |
| Ultima V: Warriors of Destiny | Pony Canyon | 1990 | NEC PC8801 | role-play Fantasy | | | label | |
| Ultima V: Warriors of Destiny | Fujitsu | 1992 | FM Towns | role-play Fantasy | 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 | |
| Ultima: Exodus | Origin | 1987 | NES | role-play Fantasy | image | subject | label | |
| Ultima: Quest of the Avatar | Infinity;Atelier Double | 1989 | NES | role-play Fantasy | image | subject | label | |
| Ultimore: A Divided World | Backstreet Software | 1985 | Apple II E | role-play Fantasy | | | label | |
| Ultraman: Kaijuu Teikoku no Gyakushuu | Bandai | 1987 | Famicom Disk System | platformer shooter Science Fiction | image | | label | |
| UMoria | author | 1983 | Unix | role-play Fantasy | | | label | |
| UMoria | author | 1993 | Tandy Coco | role-play Fantasy | | | label | |
| Underrail | Stygian Software | 2015 | Windows | role-play turn-based | image | subject | label | |
| Underworld Adventures | ? | 2005 | BeOS | role-play Fantasy | | | label | |
| Underworld Ascendant | Otherside Entertainment | 2018 | Windows | action/reflex role-play Fantasy | | | label | |
| Underworld Ascendant | Otherside Entertainment | TBA | Linux | action/reflex role-play Fantasy | image | | label | |
| Underwurlde | Ultimate Play The Game | 1984 | ZX Spectrum | platformer adventure | image | | label | |
| Underwurlde | Softstone | 1985 | C64 | platformer adventure | image | | label | |
| Unix Digger | author | ? | Linux | maze platformer | | | label | |
| Unix Digger | author | ? | Unix | maze platformer | | | label | |
| Unix Digger | author | ? | BSD | maze platformer | | | label | |
| Utopian Mining | Newsgrounds | 2012 | Flash | adventure role-play | image | subject | label | |
