| UglyDolls: An Imperfect Adventure (2019) | 0 | 0 |
| Ugougo Trinity (2009) | 0 | 0 |
| UK Truck Simulator (2010) | 2,883,531 | 317 |
| Ukhar (2018) | 515 | 5 |
| Ukraine War Stories (2022) | 32,481 | 110 |
| Ulama: Arena of the Gods (2017) | 0 | 0 |
| Uligo: A Slime's Hike (2022) | 353 | 8 |
| Ulises (1989) | 236,730 | 89 |
| Ultima Adventum (2021) | 42 | 1 |
| Ultima Forever: Quest for the Avatar (2013) | 467,287 | 91 |
| Ultima I: The First Age of Darkness (1981) | 1,737,786 | 614 |
| Ultima II: The Revenge of the Enchantress (1982) | 609,127 | 412 |
| Ultima III: Exodus (1983) | 2,405,501 | 1,278 |
| Ultima IV: Quest of the Avatar (1985) | 2,618,402 | 2,417 |
| Ultima IX: Ascension (1999) | 4,330,898 | 2,027 |
| Ultima Online (1997) | 27,409,841 | 19,596 |
| Ultima Ratio Regum (2012) | 43,688 | 10 |
| Ultima Underworld II: Labyrinth of Worlds (1993) | 1,609,862 | 1,213 |
| Ultima Underworld: The Stygian Abyss (1992) | 5,349,465 | 1,985 |
| Ultima V: Warriors of Destiny (1988) | 1,348,336 | 1,398 |
| Ultima VI: The False Prophet (1990) | 2,103,831 | 1,689 |
| Ultima VII Part Two: Serpent Isle (1993) | 1,059,018 | 881 |
| Ultima VII: The Black Gate (1992) | 6,387,109 | 2,253 |
| Ultima VIII: Pagan (1994) | 2,304,409 | 942 |
| Ultima: Escape from Mt. Drash (1983) | 31,039 | 33 |
| Ultima: Runes of Virtue (1992) | 33,739 | 63 |
| Ultima: Runes of Virtue II (1993) | 63,551 | 87 |
| Ultima: Worlds of Adventure 2: Martian Dreams (1991) | 86,855 | 169 |
| The Ultimate 11: SNK Football Championship (1996) | 387,032 | 196 |
| Ultimate 8 Ball (1999) | 71,424 | 52 |
| Ultimate Admiral: Age of Sail (2021) | 3,794,934 | 1,692 |
| Ultimate Admiral: Dreadnoughts (2021) | 37,299,012 | 9,633 |
| Ultimate ADOM - Caverns of Chaos (2021) | 617,375 | 338 |
| Ultimate Air Combat (1992) | 74,175 | 83 |
| Ultimate Angler (2015) | 0 | 0 |
| Ultimate Anime Jigsaw Puzzle (2023) | 2,245 | 13 |
| Ultimate Arena (2016) | 3,405,546 | 450 |
| Ultimate Band (2008) | 280,372 | 204 |
| Ultimate Baseball Online (2003) | 11,443 | 10 |
| Ultimate Basketball (1990) | 2,959,494 | 191 |
| The Ultimate Battle of the Sexes (2010) | 0 | 0 |
| Ultimate Battle Zombies (2012) | 15,959 | 2 |
| Ultimate Beach Soccer (2003) | 1,637,294 | 76 |
| Ultimate Block Party (2004) | 30,510 | 37 |
| Ultimate Board Game Collection (2006) | 51,311 | 63 |
| Ultimate Body Blows (1994) | 47,404 | 54 |
| Ultimate Brain Games (2003) | 15,575 | 63 |
| Ultimate Card Games (2004) | 24,510 | 33 |
| Ultimate Chicken Horse (2016) | 1,176,373,106 | 31,067 |
| Ultimate Civil War Battles: Robert E. Lee vs. Ulysses S. Grant (2003) | 260,265 | 3 |
| Ultimate Combat Mission (1987) | 2,508 | 15 |
| Ultimate Custom Night (2018) | 2,075,142,071 | 53,971 |
| Ultimate Danger Bundle (2018) | 40,601 | 3 |
| Ultimate Dinos World (2020) | 0 | 0 |
| Ultimate Domain (1993) | 74,023 | 75 |
| Ultimate Duck Hunting (2006) | 361,275 | 21 |
| Ultimate Epic Battle Simulator (2017) | 1,336,217,730 | 20,780 |
| Ultimate Epic Battle Simulator 2 (2021) | 315,235 | 218 |
| Ultimate Epic Battle Simulator 2 (2022) | 320,792,355 | 44,256 |
| Ultimate Fight Survival (2021) | 3,752,776 | 2,452 |
| Ultimate Fighter (1992) | 1,596,550 | 464 |
| Ultimate Fighting Championship (2000) | 3,043,780 | 594 |
| Ultimate Fishing Simulator (2018) | 12,607,934 | 3,813 |
| Ultimate Fishing Simulator 2 (2021) | 2,143,530 | 1,176 |
| Ultimate Fishing Simulator VR (2019) | 198,550 | 86 |
| Ultimate General: Civil War (2017) | 8,633,966 | 6,058 |
| Ultimate General: Gettysburg (2014) | 2,204,098 | 666 |
| Ultimate Ghosts 'n Goblins (2006) | 5,914,275 | 637 |
| Ultimate Golf! (2020) | 19,707,683 | 2,050 |
| The Ultimate Haunted House (1993) | 147,222 | 48 |
| Ultimate I Spy (2008) | 183,664 | 54 |
| Ultimate Jigsaw Puzzle Challenge (2024) | 0 | 0 |
| Ultimate Knight Windom XP (2008) | 103,545 | 227 |
| Ultimate League Soccer (1991) | 32,157 | 32 |
| Ultimate Legends (2018) | 1,737,420 | 666 |
