| title | developer | year | platform | | pop. |
|---|
| Ultima I: The First Age of Darkness | Origin | 1987 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima II: Revenge of the Enchantress | Origin | 1982 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima III: Exodus | Origin | 1984 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima IV: Quest of the Avatar | Origin Systems | 1985 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima IX: Ascension | Origin | 1999 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Ultima Underworld II: Labyrinth of Worlds | Looking Glass Technologies | 1993 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima Underworld II: Labyrinth of Worlds | Looking Glass Technologies | 2012 | Mac OS X | 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 V: Warriors of Destiny | Origin | 1988 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima VI: The False Prophet | Origin Systems | 1990 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima VII Part 2: The Silver Seed | Origin | 1993 | MS-DOS | role-play Fantasy | image | subject | label | |
| Ultima VII Part Two: Serpent Isle | Origin | 1993 | MS-DOS | role-play Fantasy | image | | label | |
| Ultima VII: Forge of Virtue | Origin | 1992 | MS-DOS | role-play Fantasy | image | subject | 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 | |
| Ultimate Body Blows | Team17 | 1994 | MS-DOS | fighting | | | label | |
| Ultimate General: Civil War | Game-Labs | 2016 | Linux | strategy | | | label | |
| Ultimate General: Gettysburg | Game-Labs | 2016 | Linux | strategy | | | label | |
| Underrail | Stygian Software | 2015 | Windows | role-play turn-based | image | subject | label | |
| Undertale | author | 2015 | Windows | action/reflex puzzle role-play Fantasy | image | | label | |
| Undertale | author | 2015 | Mac OS X | action/reflex puzzle role-play Fantasy | | | label | |
| Undertale | author | 2016 | Linux | action/reflex puzzle role-play Fantasy | | | label | |
| Undertale | Toby Fox | 2017 | PS4 | action/reflex puzzle role-play Fantasy | | | label | |
| Undertale | Toby Fox | 2017 | PS Vita | action/reflex puzzle role-play Fantasy | | | label | |
| Undying | Dreamworks Interactive | 2001 | Windows | Fantasy | image | subject | label | |
| UnEpic | author | 2011 | Windows | action/reflex platformer role-play Fantasy | image | subject | label | |
| UnEpic | author | 2014 | Linux | action/reflex platformer role-play Fantasy | | | label | |
| UnEpic | author | 2014 | Mac OS X | action/reflex platformer role-play Fantasy | | | label | |
| Unmechanical | Talawa Games | 2012 | Windows | puzzle Science Fiction | | | label | |
| Unmechanical | Talawa Games | 2015 | Linux | puzzle Science Fiction | | | label | |
| Unpacking | Witch Beam | 2021 | Linux | simulation | image | | label | |
| Unrest | Pyrodactyl | 2014 | Linux | adventure role-play | | | label | |
| Uplink | Introversion Software | 2001 | Linux | simulation role-play Science Fiction | image | subject | label | |
| Urban Chaos | Mucky Foot Productions | 1999 | Windows | action/reflex adventure | image | | label | |
