| University of the Dead | r69256 | 2026-05-17 |
| Univocity | r134485 | 2026-04-21 |
| Univocity | r132719 | 2026-04-21 |
| Unjou no Fairy Tale | r99009 | 2026-04-21 |
| Unjou no Fairy Tale Raburabu Ecchi Append Disc Extra! | r56216 | 2026-05-15 |
| Unknown | r108723 | 2026-04-21 |
| Unknown | r104793 | 2026-04-21 |
| Unknown Code - Demo | r116487 | 2026-04-21 |
| Unknown Code -Extra Edition- v1.7.1 | r118245 | 2026-05-14 |
| Unknown Signal | r125322 | 2026-05-06 |
| Unleashed | r133673 | 2026-04-21 |
| Unleashed v0.7.0b | r80230 | 2026-04-21 |
| Unless Terminalia | r84558 | 2026-05-16 |
| Unless Terminalia | r102375 | 2026-04-21 |
| Unlikable Us | r47165 | 2026-04-21 |
| Unlikely Partners | r67456 | 2026-04-21 |
| Unluckies | r151525 | 2026-04-21 |
| Unluckily in Love | r120499 | 2026-05-12 |
| Unluckily in Love - Adult Edition | r121520 | 2026-05-14 |
| Unluckily in Love - Adult Edition | r104628 | 2026-05-13 |
| Unluckily in Love - Adult Edition | r105590 | 2026-05-13 |
| Unluckily in Love - Adult Edition | r121519 | 2026-04-21 |
| Unluckily in Love - Adult Patch | r104629 | 2026-05-13 |
| Unluckily in Love - Adult Patch | r152352 | 2026-05-10 |
| Unluckily in Love - Censored Edition | r105592 | 2026-05-14 |
| Unluckily in Love - Censored Edition | r121602 | 2026-05-12 |
| Unluckily in Love - Censored Edition | r121601 | 2026-05-12 |
| Unluckily in Love - Censored Edition | r97008 | 2026-05-07 |
| Unluckily in Love - Demo | r105593 | 2026-05-16 |
| Unluckily in Love - Demo | r103672 | 2026-04-21 |
| Unluckily in Love: Fragments of Love | r126551 | 2026-05-11 |
| Unluckily in Love: Fragments of Love | r134023 | 2026-04-21 |
| Unlucky Re:Birth/Reverse - First Press Limited Edition | r40269 | 2026-05-12 |
| Unlucky Re:Birth/Reverse - Trial Edition | r42968 | 2026-05-16 |
| Unmasked | r149437 | 2026-04-21 |
| Unmasked Truths: Shattered Dreams | r140777 | 2026-04-21 |
| Unmasked Truths: Shattered Dreams - Tech Demo | r140776 | 2026-05-12 |
| Unmei Senjou no Phi - First Press Limited Edition | r34151 | 2026-05-08 |
| Unmei Senjou no Phi - Trial Edition | r35694 | 2026-05-05 |
| Unmei Yohou o Oshirase Shimasu | r148196 | 2026-05-13 |
| Unmei Yohou o Oshirase Shimasu | r23870 | 2026-05-05 |
| Unmei no Mahou o ~Chapter 2 - "Deviate"~ | r67601 | 2026-05-10 |
| Unmei no Mahou o ~Chapter 3 - "Revolver"~ | r67602 | 2026-05-09 |
| Unmei no Mahou o ~Last Chapter~ | r67604 | 2026-05-09 |
| Unmoor | r56741 | 2026-04-21 |
| Unnatural Instinct [v0.8.5] | r121731 | 2026-04-21 |
| Unnatural Urges | r122512 | 2026-04-21 |
| Uno Game | r145911 | 2026-05-10 |
| Unova Nights - Episode 2: Shauntal | r109641 | 2026-05-16 |
| Unplanned AMOUR | r41004 | 2026-04-21 |