| Kunoichiban! - First Press Limited Edition | r20169 | 2026-05-16 |
| Kunoichi Trainer [v0.27.1] [Patron version] | r135511 | 2026-04-21 |
| Kunoichi Trainer [v0.27.1] | r75954 | 2026-05-10 |
| Kunoichi Trainer HD [v0.27.1] | r106108 | 2026-04-21 |
| Kunoichi Torimonochou | r22085 | 2026-05-14 |
| Kunoichi Torimonochou | r71795 | 2026-05-14 |
| Kunoichi Shokushu Jigoku Hen: Maki no Ni | r60300 | 2026-05-17 |
| Kunoichi Otoshi ~Kairai to Narihateru Onna Ninja-tachi~ Package Edition | r145946 | 2026-05-11 |
| Kunoichi Ban - Trial Edition | r18691 | 2026-05-07 |
| Kunoichi Ban - Download Edition | r18690 | 2026-05-11 |
| Kunoichi Ayame ~Enjuku Seida Inbu~ Package Edition | r23881 | 2026-05-13 |
| Kunoichi Ayame ~Enjuku Seida Inbu~ Download Edition | r24549 | 2026-05-17 |
| Kung-fu Kuunyan! | r39003 | 2026-05-08 |
| Kunado Kokuki - Package Edition | r82339 | 2026-05-07 |
| Kunado Kokuki | r97027 | 2026-04-21 |
| Kunado Chronicles - Censored Edition | r104722 | 2026-04-21 |
| Kunado Chronicles | r104725 | 2026-05-08 |
| Kunado Chronicles | r112580 | 2026-04-21 |
| Kumpul Kebo Dengan Teman ♂♀ Dan Berhubungan S+ks, Tanpa Diketahui Pacar! | r138566 | 2026-04-21 |
| Kumo no Ito Hibiki no Baai | r97141 | 2026-05-10 |
| Kumo Tsukai | r53605 | 2026-05-06 |
| Kumitantei: Old-School Slaughter [Episode 1] | r141021 | 2026-04-23 |
| Kumitantei: Old-School Slaughter Demo Version | r130284 | 2026-04-21 |
| Kuma no Kioku -Infant- | r89956 | 2026-05-09 |
| Kukkyou na koufu ya senshi ga daraku shiteiku | r142539 | 2026-05-17 |
| KukkoroDays - R18 Patch (Uncensored) | r88221 | 2026-04-21 |
| KukkoroDays | r71237 | 2026-05-16 |
| KukkoroDays | r127501 | 2026-05-07 |
| KukkoroDays | r120719 | 2026-04-21 |
| Kukkoro! - Package Edition | r49053 | 2026-05-09 |
| Kukki Junsa Deban Desu! | r83571 | 2026-05-16 |
| Kujira no Koushiki | r150685 | 2026-05-06 |
| Kujaku Ou | r5201 | 2026-05-06 |
| Kujaku Ou | r5203 | 2026-05-06 |
| Kugutsume -Saiin Byoutou 24 Ji- Low Price Edition | r8254 | 2026-05-05 |
| Kugayama Shiori no Shinizama Techou - Package Edition | r153850 | 2026-05-01 |
| Kugayama Shiori no Shinizama Techou - Download Edition | r147938 | 2026-05-08 |
| Kugayama Shiori no Shinizama Techou | r135499 | 2026-05-08 |
| Kudzu | r142429 | 2026-04-21 |
| Kudo's Kuppa ~Your Mom I’d Like to Fuck.~ | r141539 | 2026-04-21 |
| Kudo's Kuppa - Censored Edition | r141541 | 2026-05-17 |
| Kud Wafter CE | r36354 | 2026-04-21 |
| Kud Wafter - First Press Limited Edition | r6096 | 2026-05-16 |
| Kud Wafter - All Ages Edition | r72666 | 2026-04-21 |
| Kud Wafter | r14009 | 2026-04-21 |
| Kud Wafter | r70709 | 2026-04-21 |
| Kuchisake Onna to Mask | r96636 | 2026-05-16 |
| Kuchiha no Higeki | r39594 | 2026-05-07 |
| Kuchibashi ni Cherry Satsujin Jiken | r99509 | 2026-05-07 |
| Kuchen Loschen+ | r128779 | 2026-04-21 |