Region | Title | System | Version | Edition | Languages | Serial | Status |
| UFO: Aftershock | PC | | Original | | | |
| UFO: Aftermath (Play CD) | PC | | Original | | | |
| UFO: Afterlight | PC | 1.4 | Original | | | |
| Uru: Ages Beyond Myst | PC | 1.0 | Original | | 651093-CD | |
| Unreal Tournament 2003 (Disc 1) | PC | 2107 | Original | | 1004250, Part# 23956CD1 | |
| Ultimate Ride Coaster Deluxe | PC | | Original | | H0919 | |
| Uru: The Path of the Shell Myst: Uru Expansion Pack: The Path of the Shell | PC | | Original | | 652021-CD | |
| Uru: Complete Chronicles (Disc 1) | PC | | Original | | 751830-CD1 | |
| Uru: Complete Chronicles (Disc 1) | PC | | Original | | 652038-CD1 | |
| Urban Chaos | PC | 2.63 | Original | | | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Special Edition, 2 Disc DVD Edition | | Part # 25309DV1, Part # 25812DV1 | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original | | Part # 25012CD6 | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original | | Part # 25012CD6 | |
| Unreal Tournament 2004 (Bonus Disc) | PC | | Special Edition, Editor's Choice Edition, 2 Disc DVD Edition | | Part # 25309DV2, Part # 25812DV2, Part # 26019DV2 | |
| Unreal Tournament 2003 (Disc 1) (Play Disc) | PC | 2199 | Rerelease | | Part# 23956CD1B | |
| Unreal Tournament 2003 (Disc 1) (Play Disc) | PC | 2141 | Rerelease | | Part# 23956CD1B | |
| Unreal Tournament (Disc 1) (Game) | PC | 400 | Original, Rerelease | | 04-18115CD1A | |
| Unreal Tournament (Disc 1) (Game) | PC | 400 | Original | | 04-18115CD1 | |
| Unreal Tournament | PC | 428 | Bundle Version Creative Labs OEM | | 04-18115CD | |
| Unreal II: The Awakening (Play Disc) | PC | 1.0 | Original | | Part# 22650CD2 | |
| Unreal II: The Awakening (Play Disc) | PC | | Special Edition | | Part#24929CD3 | |
| Unlucky Panoss | PC | | Original | | | |
| Universe at War: Earth Assault | PC | 1.0 | Original | | | |
| Universal Combat | PC | | Original | | PCO404CD | |
| Ultimate Spider-Man (Disc 1) | PC | 1.0 | Original | | 32857.101.US | |
| Ultimate Ride: Disney Coaster | PC | | | | H6406 | |
| Ultimate Ride: Disney Coaster | PC | | Original | | H6406 | |
| Ultimate Ride | PC | 1.00.000 | Original | | G2939 | |
| Ultimate Body Blows | PC | | Original | | | |
| Ultima IX: Ascension (Disc 2) (Game Disc) | PC | | Ultima Online 7th Anniversary Edition | | 1487227 | |
| Ultima IX: Ascension (Play Disc) | PC | 1.03F, 1.18F | Original, Ultima: Best of Both Worlds: Special Value Edition | | 1051017 | |
| Ultima IX: Ascension (Install Disc) | PC | 1.03F | Original, Dragon Edition | | 1051007 | |
| Ultima IX: Ascension (Game Disc) | PC | 1.03F | Dragon Edition | | 1051017 | |
| UberSoldier (Disc 3) | PC | | Original | | | |
| Ultima IX: Ascension (Install Disc) 創世紀IX | PC | 1.03f | Original | | 1051007 | |
| UEFA Euro 2004: Portugal (Disc 2) ยูฟ่า ยูโร 2004: โปรตุเกส | PC | | Original | | | |
| Upptäck Rymden med Mulle Meck | PC | 1.3 | Original | | KS0061 | |
| Upptäck Rymden med Mulle Meck | PC | 1.3 | Rerelease | | | |
| Utopia City (Disc 2) Утопия Сити | PC | | Original | | | |
| Utopia City (Disc 1) Утопия Сити | PC | | Original | | | |
| Unreal Tournament III | PC | 3487 | Original | | | |
| UFO: Vozmezdie UFO: Возмездие | PC | | 1C: Kollekciya igrushek | | | |
| UFO Trilogiya (Disc 2) (UFO Prozrenie) UFO Трилогия | PC | | Original | | | |
| UEFA Euro 2008: Austria-Switzerland | PC | | Original | | EAY07705931D | |
| Udarnaya e'skadril'ya: V nebe nad Tixim Ударная эскадрилья: В небе над Тихим | PC | | Original | | | |
| Ultima IX: Ascension (Disc 2) (Game Disc) | PC | 1.03F | Covermount | | | |
| Ultima IX: Ascension (Disc 1) (Install Disc) | PC | 1.03F | Covermount | | | |
| Unreal Tournament 2004 (Play Disc) 언리얼 토너먼트 2004 | PC | 3186 | Original | | | |
| Unreal Tournament (Disc 1) (Game) 언리얼 토너먼트 | PC | 400 | Best of Infogrames | | | |
| Usotsuki to Inugami-tsuki ウソツキと犬神憑き | PC | | Original | | KGD-09050 / KGD-093240 | |
| Uru: Complete Chronicles ミスト ウル:コンプリート クロニクル | PC | | Original | | KUD-0081 | |
| Ultima IX: Ascension (Game Disc) ウルティマ Ⅸ アセンション | PC | | Original, Premium Edition | | EMW-4060, EMWS-401 | |
| UFO: Aftermath (CD di Gioco) | PC | | Classic PC CD-ROM | | | |
| UEFA Champions League 2004-2005 (Disc 2) | PC | | Original | | EAI08004461D2 | |
| Učim Engleski s Hlapićem | PC | 1.0.0.1 | Original | | | |
| UFO: Aftermath (Játék CD) | PC | | Collectors Edition | | | |
| USA Raser: Mit Highspeed durch Amerika! | PC | 1.0.0 | Original | | USRAC | |
| Urban Chaos | PC | | Original | | | |
| Unter schwarzer Flagge | PC | | Original | | | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original, Special Edition | | | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original | | 10183730A | |
| Unreal II: The Awakening (Disc 2) (Play Disc) | PC | | Original | | U2APCD/DISC2 | |
| Die Unglaublichen: The Incredibles (Disc 2) (Spiel) Disney präsentiert einen Pixarfilm: Die Unglaublichen: The Incredibles | PC | | Original | | | |
| Undercover: Operation Wintersonne | PC | | Original | | | |
| Uncommon Valour: Campaign for the South Pacific | PC | | Original | | JFC000417 | |
| Ultima IX: Ascension (Spiel-CD) | PC | 1.18F | Special Limited Gamers Edition | | ORG08901538D1 | |
| Uli Stein Vol. 4: Steinschlag | PC | | Original | | | |
| Uli Stein Vol. 3: Käseschlacht | PC | | Original | | | |
| Uli Stein Vol. 2: 3D Mahjongg | PC | | Original | | | |
| UFO: Enemy Unknown | PC | 1.3 | Telstar Double Value Games | | | |
| UEFA Euro 2000 | PC | | Original | | EAG08902998D | |
| Uru: Ages Beyond Myst | PC | | Original, OEM Bundle, Collector's Edition | | G71-URGA001 | |
| US Racer | PC | 1.0.0.21 | Original | | USRAC, USRACDE, USRACUK | |
| Uru: The Path of the Shell | PC | | Original | | | |
| Urban Chaos | PC | 2.69 | Original | | | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original | | | |
| Unreal Tournament 2004 (Play Disc) | PC | 3186 | Original | | 1013412 | |
| Unreal Tournament 2003 (Disc 1) | PC | 2199 | Best of Atari | | | |
| Unreal Tournament (Disc 1) (Game) | PC | 400 | Original | | | |
| Unreal II: The Awakening (Disc 3) (Play Disc) | PC | 1.0 | Original | | 1003551 | |
| Universe at War: Earth Assault | PC | 1.0 (86418) | Original, Covermount | | SEGA-PC058 | |
| Ultra Street Fighter IV | PC | 2.0.0.62809 | Original | | DV97200-00EUR | |
| Ultimate Spider-Man | PC | 1.0.0.1 | Original, Best of Activision | | 32857.101.00, 32857.101.5E | |
| Ultimate Ride | PC | 1.0 | Original | | DAE08403712D, UK ULT SG 07 | |
| Ultimate Body Blows | PC | | Original | | | |
| Ultima IX: Ascension (Game Disc) | PC | 1.18F | Original | | ORE08901538D2 | |
| UEFA Euro 2008: Austria-Switzerland | PC | | Original | | EAX07705931D | |
| UFO: Afterlight | PC | 1.4 | Original | | UFOAFTERLIGHTCZ | |
| Unreal II: The Awakening (Install Disc) | PC | | OEM | | | |
| Unreal II: The Awakening (Play Disc) | PC | | OEM | | | |
| Ultima IX: Ascension (Game Disc) 創世紀IX | PC | 1.03f | Original | | 1051017 | |