| Kuronijibako - Black Rainbow Box - First Press Limited Edition | r22516 | 2026-05-08 |
| Kuronijibon 2 - Package Edition | r15159 | 2026-05-09 |
| Kuroyagi ga Ita Kyoushitsu - Trial Edition | r97334 | 2026-05-12 |
| Kuroyagi ~Otome-tachi e Sasageru Serenade~ | r24067 | 2026-05-07 |
| Kuroyuki Hime - DVDPG | r38673 | 2026-05-08 |
| Kuroyuki Hime - First Press Edition | r17707 | 2026-05-08 |
| Kuroyuki Hime ~Snow Black~ Deluxe Edition | r33481 | 2026-05-11 |
| Kuroyuki Hime ~Snow Magic~ Deluxe Edition | r35982 | 2026-05-13 |
| Kuroyuki Hime ~Snow Magic~ Regular Edition | r35765 | 2026-05-09 |
| Kuroyuri wa Azawarau | r116506 | 2026-05-06 |
| Kuruiai no Kusari | r86695 | 2026-05-16 |
| Kurukuru Fanatic | r112579 | 2026-04-21 |
| Kurukuru Fanatic | r24726 | 2026-04-21 |
| Kurukuru Tenki wa Hanamaru Moyou | r29206 | 2026-05-08 |
| Kurumi-chan A-so-bo - Special Low Price Edition | r20173 | 2026-05-13 |
| Kurumiwari Ningyou -Okashi no Kuni no Monogatari- | r105083 | 2026-05-15 |
| Kurutta Kajitsu | r17801 | 2026-05-09 |
| Kurutta Kajitsu - 5-inch Edition | r149959 | 2026-05-16 |
| Kuruwa ~Yuukyou Kan Yoiyamizakura Dai Ni Shou~ Package Edition | r33441 | 2026-05-11 |
| Kuryachi kryl'tsya | r125909 | 2026-05-06 |
| Kusari Doi: In October The Rain Never Stopped - Early Demo | r145073 | 2026-04-21 |
| Kusari no Kankei ~Tsubasa o Mogareta Kago no Tori~ Widescreen/Windows 8.1 Support Edition | r52051 | 2026-05-09 |
| Kusarihime ~Euthanasia~ | r79 | 2026-05-15 |
| Kusarihime ~jamais vu~ | r69801 | 2026-05-14 |
| Kusatta Kajitsu - Trial Edition | r21425 | 2026-05-11 |
| Kushitama Hime | r129788 | 2026-05-11 |
| Kusoge | r50030 | 2026-04-21 |
| Kusoge | r42266 | 2026-04-21 |
| Kusogei to Nadakai Gyaku Haa Ren'ai Game ni Tenshou Shitara Maji se Datta ~Tasukete~ | r141181 | 2026-05-14 |
| Kussetsu | r8542 | 2026-05-16 |
| Kutsujoku | r106335 | 2026-04-21 |
| Kutsujoku 2 | r102685 | 2026-05-16 |
| Kutsujoku 2 | r110740 | 2026-05-07 |
| Kutsujoku 3 | r106263 | 2026-04-21 |
| Kuusou Dreamer | r153847 | 2026-05-14 |
| Kuusou Higan | r5074 | 2026-05-05 |
| Kuutei Senki ~Tasogare ni Shizumu Kusabi~ | r2252 | 2026-05-08 |
| KuzuYuzu | r43763 | 2026-04-21 |
| KuzuYuzu ~True End Story~ | r144553 | 2026-04-21 |
| Kvest Monstrodev! | r153656 | 2026-04-21 |
| Kvest monstrodev! | r118971 | 2026-05-09 |
| Kvest monstrodev! | r63823 | 2026-05-09 |
| Kyarn - Build 7 | r118610 | 2026-04-21 |
| Kyle's Bodacious Escapade - Beta Version | r114023 | 2026-04-21 |
| Kyodai Bishoujo Arawaru!! | r40605 | 2026-05-10 |
| Kyokon ni Makeru Saikyou no Yankee ~Tsuyokute Junjou na Furyou Mesu-tachi ga Dekamara Suuhai Haramase Onaho Shuudan ni♪~ Package Edition | r56730 | 2026-05-11 |
| Kyokou Eiyuu GinGaia FINAL | r80034 | 2026-05-13 |
| Kyokou Eiyuu GinGaia Vol.1 - Free Download Edition | r87384 | 2026-05-10 |
| Kyokugen Chikan Tokuiten | r116177 | 2026-04-21 |
| Kyokugen Chikan Tokuiten 2 - Main Story Harem Scene Append Patch - For Package Edition | r94335 | 2026-05-10 |