| title | developer | year | game type | | pop. |
|---|
| U.F.O.s | Artech Studios | 1997 | Windows | adventure Humorous | | subject | label | |
| U.S. Navy Fighters '97 | Jane's Combat Simulations | 1997 | Windows | simulation flight | | | label | |
| Ubawareta Yuugure ~Hamidashi Bukatsudou Ryoujokukei~ | Toikiya | 2002 | Windows | adventure | | | label | |
| UBERMOSH | Walter Machado | 2015 | Windows | action/reflex shooter | image | | label | |
| ÜberSoldier | Burut | 2006 | Windows | action/reflex shooter Fantasy | image | subject | label | |
| ÜberSoldier II | Burut | 2007 | Windows | action/reflex shooter Fantasy | image | subject | label | |
| Ubik | Cryo Interactive | 1998 | Windows | adventure | image | | | |
| Ubinota | Rotateam | 2015 | Windows | puzzle | image | | | |
| UEFA Champions League 2004-2005 | EA Sports | 2005 | Windows | sport | | | label | |
| UEFA Champions League 2006-2007 | EA Sports | 2007 | Windows | sport | | | label | |
| UEFA Champions League Season 2001/2002 | Silicon Dreams | 2002 | Windows | sport | | | label | |
| UEFA Champions-League '98/99 | Silicon Dreams | 1999 | Windows | sport | | | label | |
| UEFA Champions-League '99/2000 | Silicon Dreams | 2000 | Windows | sport | | | label | |
| UEFA Euro 2000 | EA Sports | 2000 | Windows | sport | | | label | |
| UEFA Euro 2004: Portugal | EA Canada | 2004 | Windows | sport | image | | label | |
| UEFA Euro 2008: Austria-Switzerland | EA Canada | 2008 | Windows | sport | image | | label | |
| UEFA Euro 2012 | EA Sports | 2012 | Windows | | | | | |
| UEFA Manager 2000 | Bubball Systems | 2000 | Windows | manag./econ. sport | | | label | |
| UFO 2000 | UFO2000 Development Team | 20?? | Windows | strategy turn-based Science Fiction | | | label | |
| UFO Destroyer | Garrobo Studio | 2013 | Windows | action/reflex shooter | image | subject | | |
| UFO Invasion | Media Verlag | 2003 | Windows | action/reflex | image | | label | |
| UFO Jagd | Media Verlag | 2002 | Windows | shooting gallery | image | | label | |
| UFO Online: Fight for Earth | Funatics Software | 2014 | Windows | strategy turn-based Science Fiction | | | label | |
| UFO Online: Invasion | Bad Pixel | 2016 | Windows | strategy turn-based Science Fiction | | | label | |
| UFO-Hunt 2001 | Hitlista | 2001 | Windows | shooter Science Fiction | image | | label | |
| UFO: Afterlight | ALTAR Games | 2007 | Windows | strategy role-play Science Fiction | image | subject | label | |
| UFO: Aftermath | ALTAR Interactive | 2003 | Windows | strategy Science Fiction | image | subject | label | |
| UFO: Aftershock | ALTAR Interactive | 2005 | Windows | strategy Science Fiction | image | subject | label | |
| UFO: Alien Invasion | author | 2012 | Windows | strategy Science Fiction | image | | label | |
| UFO: Extraterrestrials | Chaos Concept | 2007 | Windows | strategy turn-based Science Fiction | image | subject | label | |
| UFO2Extraterrestrials: Battle for Mercury | Chaos Concept | TBA | Windows | strategy role-play turn-based Science Fiction | | subject | label | |
| UFOWars | Media Verlag | 2003 | Windows | shooter Science Fiction | image | | label | |
| Ugly Americans: Citizen Ugly | ClickShake Games | 2010 | Windows | | | | | |
| Ugo Volt | Move Interactive | 2007 | Windows | action/reflex | | | | |
| Uhou Renka | Caramel Box Milk-aji | 2011 | Windows | adventure | image | | | |
| Ukishima ni Meguru Omoi | Aozora Youchien | 2007 | Windows | adventure | image | | | |
| uliGo | author | 2003 | Windows | board game | | | label | |
| Ultim@te Race Pro | Kalisto | 1998 | Windows | racing/driving | image | | label | |
| Ultima 4 for Exult | - | 2002 | Windows | role-play Fantasy | | | label | |
| Ultima Forever: Quest for the Avatar | BioWare Mythic | 2012 | Windows | role-play | | | label | |
| Ultima I: A Legend is Reborn | Peroxide Entertainment | ? | Windows | role-play Fantasy | | | label | |
| Ultima IX: Ascension | Origin | 1999 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Ultima Online | Origin | 1997 | Windows | role-play Fantasy | image | subject | label | |
| Ultima Online: Age of Shadows | Origin | 2003 | Windows | role-play Fantasy | image | subject | label | |
| Ultima Online: Kingdom Reborn | Electronic Arts | 2007 | Windows | role-play Fantasy | | | label | |
| Ultima Online: Lord Blackthorn's Revenge | Origin | 2002 | Windows | role-play 3D | image | | label | |
| Ultima Online: Mondain's Legacy | Electronic Arts | 2005 | Windows | role-play Fantasy | image | | label | |
| Ultima Online: Renaissance | Origin | 2000 | Windows | role-play Fantasy | image | | label | |
| Ultima Online: Samurai Empire | Origin | 2004 | Windows | role-play Fantasy | image | | label | |
| Ultima Online: Stygian Abyss | Electronic Arts | 2009 | Windows | role-play Fantasy | | | label | |
| Ultima Online: The Second Age | Origin | 1998 | Windows | role-play Fantasy | image | | label | |
| Ultima Online: Third Dawn | Origin | 2001 | Windows | role-play Fantasy | image | subject | label | |
| Ultima V: Lazarus | Team Lazarus | 2005 | Windows | role-play Fantasy | | subject | label | |
| Ultima VII Part 2: Serpent Isle | Origin | 2007 | Windows | role-play Fantasy | | | label | |
| Ultima VII: The Black Gate | Origin | 2006 | Windows | role-play Fantasy | | subject | label | |
| Ultima VII: The Feudal Lands | - | ? | Windows | adventure role-play Fantasy | | | label | |
| Ultima Worlds Online: Origin | Origin Systems | 2001 | Windows | action/reflex role-play Fantasy | image | | label | |
| Ultima X: Odyssey | Origin Systems | 2004 | Windows | action/reflex role-play Fantasy | | subject | label | |
| Ultimate Epic Battle Simulator | Brilliant Game Studios | 2017 | Windows | simulation strategy Historical | | subject | label | |
| Ultimate Golf Simulation | Ubi Soft | 2000 | Windows | sport | | | label | |
| Ultimate Hunt Challenge Pack | EA Sports;Inland Productions | 2000 | Windows | sport | | | | |
| Ultimate Hunter | Xuse | 2002 | Windows | strategy role-play Manga | image | | | |
| Ultimate Ride | Disney Interactive | 2001 | Windows | simulation | | | label | |
| Ultimate Soccer Manager '98 | Sierra On-Line | 1998 | Windows | manag./econ. | | | label | |
| Ultimate Soccer Manager 98/99 | Sierra On-Line | 1999 | Windows | manag./econ. | | | label | |
| Ultimate Space Commando | Creatio 49 | 2015 | Windows | strategy turn-based Science Fiction | | | label | |
| Ultimate Spider-Man | Beenox | 2005 | Windows | action/reflex beat 'em up adventure Fantasy | image | | label | |
| Ultimate☆Boob Wars!! ~Big Breasts vs Flat Chests~ | softhouse-seal | 2012 | Windows | adventure Manga | image | | label | |
| Ultionus: A Tale of Petty Revenge | Last Dimension | 2013 | Windows | action/reflex platformer Cartoon | image | | label | |
| Ultra Fighters | Eagle Interactive | 1999 | Windows | simulation flight | | | label | |
| Ultra Mahō Shōjo Manana Vol.1 | Alice Soft | 2004 | Windows | adventure Manga | image | | label | |
| Ultra Mahō Shōjo Manana Vol.2 | Alice Soft | 2004 | Windows | adventure Manga | image | | label | |
| Ultra Mahō Shōjo Manana Vol.3 | Alice Soft | 2004 | Windows | adventure Manga | image | | label | |
| Ultra Mahō Shōjo Manana Vol.4 | Alice Soft | 2005 | Windows | adventure Manga | image | | label | |
| Ultra Mahō Shōjo Manana Vol.5 | Alice Soft | 2005 | Windows | adventure Manga | image | | label | |
| Ultra Street Fighter IV | Capcom | 2014 | Windows | action/reflex fighting Cartoon | image | | label | |
| Ultra Vixen | Pixis | 1997 | Windows | adventure Manga | image | | | |
| Ultra Vixen 2 | PIXIS Interactive | 1999 | Windows | | | | | |
| Ultranium | Jadeware | 1999 | Windows | action/reflex Science Fiction | | | label | |
| Ultreïa | Greewook | 2021 | Windows | | | | | |
| Umagoya Princess | Soft Circle Courreges | 2009 | Windows | adventure | | | | |
| Umbrella Corps | Capcom | 2016 | Windows | | | | | |
| Umeda Sky | ATP Projects | 2011 | Windows | adventure | image | | | |
| Umineko no Naku Koro ni Chiru Episode 5: End of the Golden Witch | 07th Expansion | 2009 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Chiru Episode 6: Dawn of the Golden Witch | 07th Expansion | 2009 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Chiru Episode 7: Requiem of the Golden Witch | 07th Expansion | 2010 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Chiru Episode 8: Twilight of the Golden Witch | 07th Expansion | 2010 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Episode 1: Legend of the Golden Witch | 07th Expansion | 2007 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Episode 2: Turn of the Golden Witch | 07th Expansion | 2007 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Episode 3: Banquet of the Golden Witch | 07th Expansion | 2008 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Episode 4: Alliance of the Golden Witch | 07th Expansion | 2008 | Windows | adventure | | | label | |
| Umineko no Naku Koro ni Tsubasa | 07th Expansion | 2010 | Windows | adventure | | | label | |
| Ummah Defense I: Attach of the Flying Robots | IslamGames | ? | Windows | shooter Science Fiction | | | label | |
| Ummah Defense II | IslamGames | ? | Windows | shooter Science Fiction | | | label | |
| Unavowed | Wadjet Eye Games | 2018 | Windows | adventure | | subject | label | |
| Uncanny Valley | Cowardly Creations | 2015 | Windows | action/reflex adventure Horror | image | | label | |
| Uncharted Waters Online | KOEI | 2004 | Windows | simulation adventure role-play Historical | image | subject | label | |
| Unchildish Fairy Tales | Saturn Plus | 2003 | Windows | | | | | |
| Unclaimed World | Refactored Games | 2016 | Windows | simulation | image | | label | |
| Uncle Henry's Playhouse | Trilobyte | 1996 | Windows | puzzle | image | | label | |
| Uncle Julius and the Anywhere Machine | AHA! Software | 1997 | Windows | | | | | |
| Undead Legions | Key17Games | | Windows | action/reflex | image | | | |
| Under Ash | Afkar Media | 2001 | Windows | shooter | | | label | |
| Under Princess | GearProducts | 2001 | Windows | adventure | | | | |
| Under Siege | Afkar Media | 2005 | Windows | shooter | image | | label | |
| Under that Rain | BadTale Studios | 2017 | Windows | | | | | |
| Under the Garden | author | 2010 | Windows | | | | label | |
| Under the Moon | Bamya Games | 2022 | Windows | platformer puzzle | | subject | label | |
| Undercover Missions: Kursk K-141 | The Game Species | 2015 | Windows | | | | | |
| Undercover: Operation Wintersun | Sproing | 2007 | Windows | adventure | | | | |
| Undercroft | Rake in Grass | 2006 | Windows | action/reflex role-play Fantasy | image | | label | |
| Underlight | Lyra Studios | 1998 | Windows | | | | label | |
| Underline | Gensou Eigakan | 2011 | Windows | adventure | | | | |
| Underrail | Stygian Software | 2015 | Windows | role-play turn-based | image | subject | label | |
| Undertale | author | 2015 | Windows | action/reflex puzzle role-play Fantasy | image | | label | |
| Underworld Ascendant | Otherside Entertainment | 2018 | Windows | action/reflex role-play Fantasy | | | label | |
| Undying | Dreamworks Interactive | 2001 | Windows | Fantasy | image | subject | label | |
| Unearthed: Trail of Ibn Battuta | Semaphore | 2014 | Windows | action/reflex Historical | image | subject | label | |
| UnEpic | author | 2011 | Windows | action/reflex platformer role-play Fantasy | image | subject | label | |
| Unexplored | Ludomotion | 2017 | Windows | adventure role-play | | subject | label | |
| Unfolded: Camellia Tales | COSDOTS | 2021 | Windows | | | | | |
| Unforeseen Incidents | Application Systems Heidelberg Software | 2018 | Windows | | | | | |
| Unforgiving - A Northern Hymn | Angry Demon Studio | 2017 | Windows | adventure Fantasy | | | label | |
| Unforgiving Trials: The Darkest Crusade | Amaterasu Software | 2016 | Windows | role-play turn-based Fantasy | | | label | |
| Unforgiving Trials: The Space Crusade | Amaterasu Software | 2016 | Windows | role-play turn-based Manga | | subject | label | |
| Unfortunately Ninja | author | TBA | Windows | | | | | |
| Unhack | InvertMouse | 2014 | Windows | adventure puzzle | | subject | label | |
| Unholy Heights | Petit Depotto | 2013 | Windows | manag./econ. Fantasy | image | | label | |
| Unholy Neighbourhood | Dali Games | 2023 | Windows | | | | | |
| UnHolY SaNctuaRy | anhori production | 2013 | Windows | action/reflex Fantasy | image | | label | |
| UNI | Game Museum | 2019 | Windows | | | subject | label | |
| Unicorn Dungeon | Stand Off Software | 2018 | Windows | | | | | |
| United States Air Force | Pixel Multimedia | 1999 | Windows | | | | | |
| Unity of Command - Red Turn | 2x2 Games;Dvaput | 2012 | Windows | strategy Historical | image | subject | label | |
| Unity of Command | 2x2 Games;Dvaput | 2012 | Windows | strategy Historical | image | subject | label | |
| Universal Combat | 3000AD | 2004 | Windows | action/reflex simulation flight Science Fiction | | | label | |
| Universe 25: The Loop | The Northern Bureau | 2021 | Windows | | | | | |
| Universe at War: Earth Assault | Petroglyph Games | 2007 | Windows | strategy 3D | image | subject | label | |
| Universe Online | Colony Studios | 2009 | Windows | action/reflex simulation flight Science Fiction | | | label | |
| Universe Sandbox | Giant Army | 2011 | Windows | simulation | image | subject | label | |
| Unknown Horizons | Unknown Horizons Developers | 2009 | Windows | strategy Historical | image | | label | |
| Unlucky Seven | Puzzling Dream | 2019 | Windows | | image | | | |
| Unmanned | author;Molleindustria | 2012 | Windows | adventure | image | | | |
| Unmechanical | Talawa Games | 2012 | Windows | puzzle Science Fiction | | | label | |
| Unmei no Furiko ~Pendulum of Fate~ | iMAGE CLUB | ? | Windows | adventure | image | | label | |
| Unpacking | Witch Beam | 2021 | Windows | simulation | image | subject | label | |
| Unrailed! | Indoor Astronaut | 2020 | Windows | action/reflex manag./econ. Humorous | | | label | |
| Unravel | Coldwood Interactive | 2016 | Windows | platformer puzzle Fantasy | image | subject | label | |
| Unravel Two | Coldwood Interactive | 2018 | Windows | platformer puzzle Fantasy | | | label | |
| Unreal | Epic MegaGames;Digital Extremes | 1998 | Windows | shooter Science Fiction | image | | label | |
| Unreal II – The Awakening | Legend Entertainment | 2003 | Windows | shooter Science Fiction | image | | label | |
| Unreal Mission Pack: Return to Na Pali | Legend Entertainment | 1999 | Windows | shooter Science Fiction | | | label | |
| Unreal Tournament | Epic Megagames | 1999 | Windows | Science Fiction | image | subject | label | |
| Unreal Tournament 2003 | Digital Extremes | 2002 | Windows | 3D | image | subject | label | |
| Unreal Tournament 2004 | Epic Games;Digital Extremes | 2004 | Windows | Science Fiction | image | subject | label | |
| Unreal Tournament 3: Black Edition | Epic Games | 2007 | Windows | Science Fiction | | | label | |
| Unreal Tournament III | Epic Games | 2007 | Windows | Science Fiction | image | subject | label | |
| Unreal: Return to Na Pali | Legend Entertainment | 1999 | Windows | shooter adventure Science Fiction | image | | label | |
| Unrest | Pyrodactyl | 2014 | Windows | adventure role-play | | | label | |
| Unstoppable Gorg | Futuremark Games Studio | 2012 | Windows | strategy Science Fiction | image | subject | label | |
| Unstrong | origamihero games | 2021 | Windows | platformer Cartoon | | subject | label | |
| Unturned | Smartly Dressed Games | 2014 | Windows | action/reflex | image | subject | label | |
| Unusual Findings | Epic Llama Games | 2022 | Windows | | | | | |
| Unwell Mel | Big Fish Games | 2009 | Windows | puzzle | | | label | |
| Up Soccer | Artematica Entertainment | 2006 | Windows | sport | image | | label | |
| Uplink | Introversion | 2001 | Windows | simulation Science Fiction | | | label | |
| Uprising | Cyclone Studios | 1997 | Windows | shooter strategy Science Fiction | image | | label | |
| Uprising 2: Lead and Destroy | Cyclone Studios | 1998 | Windows | action/reflex strategy | | | label | |
| Uprising 44: The Silent Shadows | DMD Enterprise | 2012 | Windows | shooter strategy | | | label | |
| Uproot | Strongshell Software | 2022 | Windows | | | | | |
| UpWords | Hasbro Interactive | 1999 | Windows | board game | | | label | |
| Ura Bangumi ~Bijin Joshi Ana Yokubou Seichuukei~ | 13cm | 2003 | Windows | adventure | | | label | |
| Ura Nyuugaku ~In'eki ni Nureta Kyoukasho~ | Atelier Kaguya DREIZEHN | 2004 | Windows | adventure | image | | label | |
| Ura: Jinzai Haken Center | Megami | 2002 | Windows | adventure | | | label | |
| Uranyuugaku | Kaguya-Dr | 2004 | Windows | adventure Manga | image | | | |
| Urban Assault | TerraTools | 1998 | Windows | shooter strategy Science Fiction | image | | label | |
| Urban Assault: Metropolis Dawn | TerraTools | 1998 | Windows | shooter strategy Science Fiction | | | label | |
| Urban Chaos | Mucky Foot Productions | 1999 | Windows | action/reflex adventure | image | | label | |
| Urban Freestyle Soccer | Silicon Dreams | 2004 | Windows | sport | | | label | |
| Urban Runner: Lost in Town | Coktel Vision | 1996 | Windows | action/reflex adventure | image | subject | label | |
| Urban Terror | Silicon Ice Development | 2000 | Windows | shooter | | | label | |
| Urban Trial Freestyle | Tate Interactive | 2013 | Windows | racing/driving | image | subject | | |
| Urban Witch Story | Postmodern Adventures | 2020 | Windows | | | | | |
| Urfin Jus and his Wooden Soldiers | Electronic Paradise | 2007 | Windows | | | | | |
| Uriel's Chasm | Rail Slave Games | 2014 | Windows | action/reflex platformer shooter | image | subject | | |
| Uru: Ages beyond Myst | Cyan Worlds | 2003 | Windows | adventure 3D | image | | label | |
| Uru: Path of the Shell | Cyan Worlds | ? | Windows | adventure | | | label | |
| Uru: The Path of the Shell | Cyan Worlds | 2004 | Windows | | | | | |
| US Racer | Davilex | 2001 | Windows | racing/driving | | | | |
| USAF | Electronic Arts;Jane's Combat Simulations | 1999 | Windows | simulation flight | | | | |
| Uscf Chess | Indigo Moon Prod. | 1998 | Windows | strategy | | | label | |
| Usotsuki to Inugamitsuki | Kuroneko-san Team | 2009 | Windows | adventure | image | | label | |
| Utawarerumono | Leaf | 2002 | Windows | strategy adventure role-play Manga | image | subject | label | |
| Utawarerumono: Mask of Deception | Aquaplus | 2020 | Windows | strategy adventure role-play | | | label | |
| Utawarerumono: Mask of Truth | Aquaplus | 2020 | Windows | strategy adventure role-play | image | | label | |
| Utopia City | Parallax Arts Studio | 2005 | Windows | shooter Science Fiction | image | subject | label | |
| Utopia Syndrome | author | TBA | Windows | | | | | |
| Utumno | author | 1997 | Windows | role-play Fantasy | image | | label | |
| Uurnog | author | 2017 | Windows | platformer | | | | |
| Uzukihime | Pochette | 2001 | Windows | adventure | | | | |
