| Kuruwa ~Yuukyou Kan Yoiyamizakura Dai San Shou~ Package Edition | r33442 | 2026-05-22 |
| Kuryachi kryl'tsya | r125909 | 2026-05-18 |
| Kusabi -Shikumareta Josou Wana- | r86150 | 2026-06-03 |
| Kusairo no Hitomi | r67769 | 2026-05-21 |
| Kusairo no Hitomi | r67768 | 2026-05-21 |
| Kusamura no Oku - Download Edition | r11168 | 2026-06-10 |
| Kusari - Download Edition | r65699 | 2026-05-21 |
| Kusari Doi: In October The Rain Never Stopped - Early Demo | r145073 | 2026-04-21 |
| Kusari Sister Princess | r76588 | 2026-06-07 |
| Kusari no Kankei ~Tsubasa o Mogareta Kago no Tori~ Trial Edition | r35236 | 2026-05-17 |
| Kusari no Kankei ~Tsubasa o Mogareta Kago no Tori~ Widescreen/Windows 8.1 Support Edition | r52051 | 2026-05-09 |
| Kusari to Ai to Goraku o - Package Edition | r6932 | 2026-05-31 |
| Kusarihime ~Euthanasia~ | r143707 | 2026-05-21 |
| Kusarihime ~Euthanasia~ | r79 | 2026-05-15 |
| Kusarihime ~Euthanasia~ Download Edition | r80 | 2026-05-30 |
| Kusarihime ~jamais vu~ | r69801 | 2026-05-14 |
| Kusatta Kajitsu - Download Edition | r21424 | 2026-05-21 |
| Kusatta Kajitsu - Package Edition | r21426 | 2026-05-29 |
| Kusatta Kajitsu - Trial Edition | r21425 | 2026-05-11 |
| Kusatta Kajitsu -Rotten Fruit- | r82401 | 2026-06-02 |
| Kusatta Kingyo no Umekigoe ga Kikoeru | r142341 | 2026-05-21 |
| Kusatta Sekai no Niwa, Utsukushiki Runes | r31745 | 2026-05-19 |
| Kusatteru Jojishi | r97584 | 2026-05-29 |
| Kushitama Hime | r129788 | 2026-05-11 |
| Kusoge | r42266 | 2026-05-26 |
| Kusoge | r50030 | 2026-05-20 |
| Kusoge | r56775 | 2026-05-19 |
| Kusogei to Nadakai Gyaku Haa Ren'ai Game ni Tenshou Shitara Maji se Datta ~Tasukete~ | r141181 | 2026-05-14 |
| Kusozako Maou Shoujo Akari ~Ishukandaru e Youkoso!~ Download Edition | r117250 | 2026-05-22 |
| Kusozako Maou Shoujo Akari ~Ishukandaru e Youkoso!~ Package Edition | r117251 | 2026-05-20 |
| Kussetsu | r8542 | 2026-05-16 |
| Kusuguri | r75045 | 2026-06-01 |
| Kusuguri Chiryou | r150568 | 2026-06-10 |
| Kusuguri Sennou | r98444 | 2026-06-02 |
| Kusuguri Sentou | r59287 | 2026-05-30 |
| Kusuri o Kai ni Kitarachi wa Genka ni Makikomareta Hanashi R | r127032 | 2026-05-26 |
| Kusuriya Enishi | r96099 | 2026-06-02 |
| Kusuriyubi no Kyoukasho - PC-9821 CD-ROM Edition | r17803 | 2026-06-02 |
| Kusuriyubi no Kyoukasho 2 - Regular Edition | r26916 | 2026-05-21 |
| Kusushi wa Majo no Yakusou o Nusumu? | r102130 | 2026-06-03 |
| Kuter'ma s zhivoj edoj | r23441 | 2026-05-22 |
| Kutsujoku | r106335 | 2026-04-21 |
| Kutsujoku - DVDPG | r59378 | 2026-06-10 |
| Kutsujoku - DVDPG Renewal Package Edition | r133493 | 2026-05-22 |
| Kutsujoku 2 | r110740 | 2026-05-27 |
| Kutsujoku 2 | r102685 | 2026-05-16 |
| Kutsujoku 2 - DVDPG | r133344 | 2026-05-21 |
| Kutsujoku 2 - Download Edition | r60906 | 2026-06-09 |
| Kutsujoku 2 - Package Edition | r60904 | 2026-05-21 |
| Kutsujoku 3 | r106263 | 2026-04-21 |