| title | developer | year | platform | | pop. |
|---|
| U-Boat | Deadly Games | 1994 | Mac OS Classic | adventure | | | label | |
| Ultima I: The First Age of Darkness | The Software Gremlins | 1994 | Apple IIGS | role-play turn-based Fantasy | image | subject | label | |
| Ultima I: The First Age of Darkness | Newtopia Planning | 1988 | NEC PC9801 | role-play Fantasy | image | | label | |
| Ultima I: The First Age of Darkness | Origin | 1986 | Apple II E | role-play Fantasy | image | subject | label | |
| Ultima II: Revenge of the Enchantress | Sierra On-Line | 1985 | Atari ST | role-play Fantasy | image | | label | |
| Ultima II: Revenge of the Enchantress | Sierra On-Line | 1985 | Mac OS Classic | role-play Fantasy | image | | label | |
| Ultima II: Revenge of the Enchantress | Newtopia Planning | 1989 | NEC PC9801 | role-play Fantasy | image | | label | |
| Ultima III: Exodus | Origin | 1985 | Amiga | role-play Fantasy | image | | label | |
| Ultima III: Exodus | Origin Systems | 1985 | Mac OS Classic | role-play Fantasy | image | | label | |
| Ultima III: Exodus | Newtopia Planning | 1988 | MSX2 | role-play Fantasy | image | | label | |
| Ultima III: Exodus | Starcraft | 1986 | MICRO 7 - FM7 | role-play Fantasy | | | label | |
| Ultima III: Exodus | Origin | 1983 | Apple II E | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin Systems | 1985 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima Underworld: The Stygian Abyss | Blue Sky Productions | 1992 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima VI: The False Prophet | Abersoft | 1992 | Atari ST | role-play Fantasy | image | | label | |
| Ultima VI: The False Prophet | Origin Systems | 1990 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima VII Part Two: Serpent Isle | Origin | 1993 | MS-DOS | 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 | 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 VIII: Pagan | Origin | 1994 | MS-DOS | adventure role-play Fantasy | image | | label | |
| Ultima: Worlds of Adventure 2: Martian Dreams | Origin | 1991 | MS-DOS | role-play Science Fiction | image | | label | |
| UMP | UpTime | ? | Apple II E | sport | | | label | |
| UMS | Rainbird | 1988 | Mac OS Classic | strategy Historical | image | | label | |
| Undersea Adventure | Knowledge Adventure | 1994 | MS-DOS | | | | label | |
| Uninvited | Icom Simulations | 1988 | Apple IIGS | adventure Horror | image | | label | |
| United States | UpTime | 1985 | Apple II E | trivia/quiz | | | label | |
| Unnkulia One-Half: The Salesman Triumphant | Adventions | 1993 | MS-DOS | adventure Fantasy | | | label | |
| Unnkulia One-Half: The Salesman Triumphant | Adventions | 1993 | Mac OS Classic | adventure Fantasy | | | label | |
| Unnkulia One-Half: The Salesman Triumphant | Adventions | 1993 | Atari ST | adventure Fantasy | | | label | |
| Unnkulia Zero: The Search for Amanda | Adventions | 1993 | Atari ST | adventure Fantasy | | | label | |
| Unnkulia Zero: The Search for Amanda | Adventions | 1993 | MS-DOS | adventure Fantasy | | | label | |
| Unnkulia Zero: The Search for Amanda | Adventions | 1993 | Mac OS Classic | adventure Fantasy | | | label | |
| Unnkulian Underworld: The Unknown Unventure | Adventions | 1990 | Mac OS Classic | adventure Fantasy | | | label | |
| Unnkulian Underworld: The Unknown Unventure | Adventions | 1990 | MS-DOS | adventure Fantasy | image | | label | |
| Unnkulian Underworld: The Unknown Unventure | Adventions | 1990 | Atari ST | adventure Fantasy | image | | label | |
| Unnkulian Unventure II: The Secret of Acme | Adventions | 1991 | Mac OS Classic | adventure Fantasy | | | label | |
| Unnkulian Unventure II: The Secret of Acme | Adventions | 1991 | MS-DOS | adventure Fantasy | | | label | |
| Unnkulian Unventure II: The Secret of Acme | Adventions | 1991 | Atari ST | adventure Fantasy | | | label | |
| Utopia: The Creation of a Nation | Celestial Software | 1991 | Amiga | strategy Science Fiction | image | | label | |
| Utopia: The Creation of a Nation | Celestial Software | 1992 | MS-DOS | strategy Science Fiction | image | subject | label | |
| Utopia: The New Worlds | Celestial Software | 1992 | Amiga | strategy Science Fiction | | | label | |
| Utopia: The New Worlds | Celestial Software | 1992 | MS-DOS | strategy Science Fiction | | | label | |
