| UNLUCKY!!! -Ace-sama to Kiss Suru Typing- | r155720 | 2026-06-07 |
| UNLUCKY POTION | r86386 | 2026-04-21 |
| UNKNOWN | r89978 | 2026-04-21 |
| UNISTAR - Demo | r74181 | 2026-04-21 |
| UNISTAR | r94717 | 2026-04-21 |
| UNI-BIRTH - Trial Edition | r153265 | 2026-05-09 |
| UNI-BIRTH | r153262 | 2026-05-09 |
| UNHOLIC Syndrome | r130770 | 2026-05-10 |
| UNDYING: The Beast | r125212 | 2026-05-10 |
| UNDYING: REJECT | r110784 | 2026-05-06 |
| UNDYING: Kowloon in Red - Demo | r144399 | 2026-05-10 |
| UNDYING: Kowloon in Red | r144400 | 2026-05-10 |
| UNDERSTUDY | r113658 | 2026-05-10 |
| UNDERGROUND22 | r94372 | 2026-04-21 |
| UNDERCOVER LIVE Episode 0 | r83215 | 2026-05-10 |
| UNDERCOVER LIVE Episode 0 | r83214 | 2026-05-10 |
| UNDERCOVER LIVE Episode 0 | r83213 | 2026-04-21 |
| UNDER | HEAVEN v4.3 | r134050 | 2026-04-21 |
| UNDER THE FALSE SKY | [heca;tomb] - Demo | r129313 | 2026-05-25 |
| UNDER THE FALSE SKY | [heca;tomb] - Demo | r128924 | 2026-05-09 |
| UNDER THE FALSE SKY | [Re]:Idealize - Demo | r121481 | 2026-05-08 |
| UNDER THE FALSE SKY | [Re]:Idealize | r121640 | 2026-05-08 |
| UNDER THE FALSE SKY | [IM]Pulse | r125282 | 2026-04-21 |
| UNDER THE FALSE SKY | Kein:[Über]Leben | r130758 | 2026-05-16 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r57899 | 2026-05-10 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r57898 | 2026-05-09 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r64718 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r57919 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r57900 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH Exe:Late[st] | r57896 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH Exe:Late[cl-r] | r69862 | 2026-06-09 |
| UNDER NIGHT IN-BIRTH Exe:Late[cl-r] | r70425 | 2026-05-08 |
| UNDER NIGHT IN-BIRTH Exe:Late | r57890 | 2026-05-08 |
| UNDER NIGHT IN-BIRTH Exe:Late | r57895 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH Exe:Late | r57891 | 2026-04-21 |
| UNDER NIGHT IN-BIRTH | r57889 | 2026-04-21 |
| UNDAWN: Shackles Of Eternity - Chapter 2 | r144062 | 2026-06-09 |
| UNCLEAN MEMORIES | r141418 | 2026-05-25 |
| UNBALANCE ~Boku ga Nakushita Mono~ Package Edition | r128572 | 2026-06-09 |
| UNBALANCE ~Boku ga Nakushita Mono~ Download Edition | r128571 | 2026-05-19 |
| UN:LOGICAL ダウンロード版 | r146135 | 2026-04-21 |
| UN:LOGICAL Trial Edition | r145894 | 2026-05-12 |
| UN:LOGICAL Standard Edition | r125548 | 2026-05-15 |
| UN:LOGICAL Limited Revelation BOX | r139571 | 2026-05-08 |
| UN:LOGICAL After Episode Collection Vol.1 | r151223 | 2026-06-09 |
| ULTRA VIOLENCE -Special:HARDCORE.- | r102222 | 2026-05-08 |
| ULTRA VIOLENCE -Anti:HAPPINESS.- | r102221 | 2026-06-02 |
| ULTIMATUM: The Slaughter of Amaranth - PROLOGUE v1.3 | r146585 | 2026-05-08 |
| UFO v0.6.8 Beta | r84815 | 2026-04-21 |
| UFO o Sagashi ni! | r117760 | 2026-05-08 |