| Unclaimed | r148011 | 2026-04-21 |
| Uncle Merton & Baby Mergle Chapter One | r66150 | 2026-04-21 |
| Uncle Neighbor | r90193 | 2026-04-21 |
| Uncle and His Friend | r125944 | 2026-04-21 |
| Uncommon Breed v41 | r89002 | 2026-04-21 |
| Uncommon Life - Chapter 2 | r134437 | 2026-04-21 |
| Unconventional Gym: Part 1 | r61999 | 2026-04-21 |
| Unconventional Gym: Part 2 | r62000 | 2026-04-21 |
| Unconventional Gym: Part 3 (Final) | r62001 | 2026-04-21 |
| Uncutetifying Danny | r119704 | 2026-04-21 |
| Undead Air | r114390 | 2026-04-21 |
| Undead Darlings ~no cure for love~ | r72500 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Deluxe Edition | r96711 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Deluxe Edition | r96710 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Demo | r90497 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Download Edition | r82300 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Downoad Edition | r46034 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Standard Edition | r96708 | 2026-04-21 |
| Undead Darlings ~no cure for love~ Standard Edition | r96712 | 2026-04-21 |
| Undead Destiny | r48987 | 2026-04-21 |
| Undead Lovers | r43452 | 2026-04-21 |
| Undead Strings - Demo | r113588 | 2026-04-21 |
| Undead Vendetta | r134916 | 2026-04-21 |
| Undecided-cyan- | r109995 | 2026-04-21 |
| Undefeated v0.3.0 | r118618 | 2026-04-21 |
| Undefeated v0.6.2 | r115794 | 2026-04-21 |
| Undefeated v1.0.0 | r92184 | 2026-04-21 |
| Under Care of The Forest | r128274 | 2026-04-21 |
| Under Control (Uncensored) | r81558 | 2026-04-21 |
| Under Control 2 | r87238 | 2026-04-21 |
| Under Control 3: The College | r125641 | 2026-04-21 |
| Under Control v0.7 (Censored) | r73713 | 2026-04-21 |
| Under Cover of Lies - Глава 1 | r150008 | 2026-04-21 |
| Under Ground～地下牢で泣く小羊たち～ | r14807 | 2026-04-21 |
| Under Ground～地下牢で泣く小羊たち～ ダウンロード版 | r17231 | 2026-04-21 |
| Under Heaven Or Hell | r147218 | 2026-04-21 |
| Under Heaven Or Hell - Demo | r137859 | 2026-04-21 |
| Under Her Command | r133289 | 2026-04-21 |
| Under Maintenance | r127111 | 2026-04-21 |
| Under Maintenance | r94193 | 2026-04-21 |
| Under Maintenance | r103702 | 2026-04-21 |
| Under Maintenance | r92796 | 2026-04-21 |
| Under Night In-Birth Exe:Late | r57893 | 2026-04-21 |
| Under Night In-Birth Exe:Late | r57894 | 2026-04-21 |
| Under Night In-Birth Exe:Late[cl-r] - EU Edition | r69860 | 2026-04-21 |
| Under Night In-Birth Exe:Late[cl-r] - NA Collector's Edition | r70010 | 2026-04-21 |
| Under Night In-Birth Exe:Late[cl-r] - NA Edition | r69861 | 2026-04-21 |
| Under Night In-Birth Exe:Late[st] | r57901 | 2026-04-21 |
| Under Night In-Birth Exe:Late[st] End of Dawn Edition | r57897 | 2026-04-21 |
| Under One Wing | r115737 | 2026-04-21 |