| Un Juego de Huevos (2010) | 26,083 | 8 |
| Un pas fragile (2019) | 253,927 | 50 |
| The Un-BEATable Game (2023) | 7,067,526 | 31 |
| Unalive (2017) | 212,402 | 89 |
| Unarmed Area (2021) | 0 | 0 |
| Unavailed (2023) | 4,938 | 17 |
| Unavowed (2018) | 1,065,863 | 1,818 |
| Unaware (2023) | 813,293 | 114 |
| Unaware in The City (2024) | 1,350 | 2 |
| Unbeatable (2021) | 33,913,839 | 2,024 |
| Unblock Me (2009) | 100,057 | 319 |
| Unblock Me Car (2021) | 1,695 | 451 |
| Unblocking (2022) | 66,385 | 24 |
| Unbound Saga (2009) | 195,155 | 141 |
| Unbound: Worlds Apart (2021) | 1,435,535 | 2,209 |
| Unbox (2016) | 40,420,380 | 1,620 |
| Unbox: Newbie's Adventure (2016) | 2,347,788 | 543 |
| The Unbreakable Gumball (2022) | 38,112 | 6 |
| Unbuild (2021) | 2,307 | 13 |
| Uncanny Valley (2015) | 4,347,001 | 703 |
| Uncanny Valley (2017) | 8,703,223 | 318 |
| The Uncanny X-Men (1989) | 7,429,105 | 2,867 |
| The Uncertain: Last Quiet Day (2016) | 1,041,413 | 1,256 |
| The Uncertain: Light At The End (2020) | 1,169,265 | 1,705 |
| Unchained Blades (2011) | 674,436 | 222 |
| Uncharted 2: Among Thieves (2009) | 332,030,599 | 160,629 |
| Uncharted 3: Drake's Deception (2011) | 550,010,326 | 168,501 |
| Uncharted 4: A Thief's End (2016) | 2,244,195,511 | 673,753 |
| Uncharted Lands: Beginning (2023) | 0 | 0 |
| Uncharted Ocean (2019) | 52,953 | 99 |
| Uncharted Space - project 3062 (2022) | 0 | 0 |
| Uncharted Tides: Port Royal (2019) | 485,185 | 315 |
| Uncharted Waters (1990) | 825,055 | 441 |
| Uncharted Waters (1991) | 316,306 | 213 |
| Uncharted Waters 2: New Horizons (1993) | 186,765 | 127 |
| Uncharted Waters II: New Horizons (1993) | 3,592,768 | 1,019 |
| Uncharted Waters Online (2004) | 4,011,081 | 3,061 |
| Uncharted Waters Online (2010) | 1,319,971 | 126 |
| Uncharted Waters Origin (2023) | 593,572 | 814 |
| Uncharted Waters VI (2019) | 262,683 | 111 |
| Uncharted Waters: New Horizons (1994) | 908,994 | 593 |
| Uncharted: Drake's Fortune (2007) | 208,146,105 | 121,768 |
| Uncharted: Fight for Fortune (2012) | 365,500 | 108 |
| Uncharted: Fortune Hunter (2016) | 1,263,669 | 564 |
| Uncharted: Golden Abyss (2011) | 35,807,408 | 4,052 |
| Uncharted: The Lost Legacy (2017) | 356,669,192 | 130,136 |
| Unclaimed World (2016) | 123,412 | 85 |
| Uncle Chop's Rocket Shop (2024) | 1,171,429 | 658 |
| Uncle Henry's Playhouse (1996) | 952 | 2 |
| Uncle Kenny The Game (2023) | 222 | 4 |
| Uncle Nook's Survivors (2025) | 64 | 3 |
| Uncle Unco (2024) | 1 | 1 |
| Uncle's Basement (2024) | 471,334 | 74 |
| The Unclogging: An Unsanitary Saga (2017) | 0 | 0 |
| Uncolored Bob II (2021) | 121 | 4 |
| Unconnected Marketeers (2021) | 8,806,391 | 2,450 |
| Unconventional Warfare (2022) | 208,018 | 68 |
| Uncover the Smoking Gun (2024) | 616,864 | 90 |
| Uncraft World (2015) | 3,377,641 | 119 |
| Uncrowded (2015) | 497,054 | 17 |
| UNCULT (2024) | 1,526 | 3 |
| UNCURSED (2025) | 128,548 | 117 |
| Undarkened: Revival (2022) | 0 | 0 |
| Undaunted Normandy (2023) | 117,835 | 81 |
| Undawn (2023) | 3,965,219 | 1,828 |
| Undead Battle Royale (2021) | 20,270 | 24 |
| Undead Bowling (2013) | 25,912 | 17 |
| Undead Citadel (2023) | 1,124,357 | 548 |
| Undead City (2024) | 339,472 | 218 |
| Undead Darlings ~no cure for love (2020) | 28,553 | 69 |
| Undead Development (2021) | 279,109 | 1 |
| Undead Horde (2019) | 5,147,763 | 1,752 |
| Undead Inc. (2024) | 1,035,998 | 120 |
| Undead Knights (2009) | 1,347,075 | 569 |
| Undead Line (1989) | 194,694 | 181 |
