| Kamaitachi no Yoru - Rinne Saisei | r83933 | 2026-04-21 |
| Kamaitachi no Yoru - Noch' kama-itati | r82510 | 2026-05-15 |
| Kamaitachi no Yoru | r2339 | 2026-05-13 |
| Kamaitachi no Yoru | r130654 | 2026-04-21 |
| Kalopsia: Let's Descend Together - Demo | r146089 | 2026-04-21 |
| Kali: Flame of Samsara, Season 3 | r141806 | 2026-04-21 |
| Kali: Flame of Samsara, Season 2 | r141805 | 2026-04-21 |
| Kali: Flame of Samsara, Season 1 | r141804 | 2026-04-21 |
| Kali: Flame of Samsara | r141807 | 2026-04-21 |
| Kali: Call of Darkness, Season 3 | r141814 | 2026-04-21 |
| Kali: Call of Darkness, Season 2 | r141813 | 2026-05-12 |
| Kali: Call of Darkness, Season 1 | r141809 | 2026-04-21 |
| Kali: Call of Darkness | r141815 | 2026-04-21 |
| Kaleidscope | r41295 | 2026-04-21 |
| Kaleidoscope | r140639 | 2026-04-21 |
| Kaleidoeve - Regular Edition | r35981 | 2026-05-07 |
| Kaleidoeve - First Press Limited Edition | r35979 | 2026-05-06 |
| Kaleido Stella | r88517 | 2026-04-21 |
| Kalanchoe - Trial Edition | r83275 | 2026-05-16 |
| Kakyuusei - Original Reprint Edition | r4615 | 2026-05-10 |
| Kakyuusei | r4569 | 2026-05-10 |
| Kakyoin Dating Simulator | r86697 | 2026-05-15 |
| Kakutou Hime Leia ~Chijoku no Arena~ Package Edition | r8330 | 2026-05-17 |
| Kakutou Hime Leia ~Chijoku no Arena~ Download Edition | r8331 | 2026-05-10 |
| Kakushinin | r153637 | 2026-05-13 |
| Kakusareta Mosu*wa | r103128 | 2026-05-06 |
| Kakuriyo no Senkouka - Trial Edition Ver 1.0 | r59982 | 2026-05-10 |
| Kakuriyo no Senkouka | r57158 | 2026-05-13 |
| Kakuriyo no Saiyaku to Utsushiyo no Ikusabime ~Kirie Hen~ Download Edition | r79403 | 2026-05-17 |
| Kakurika -out of the phantom mirror- CASE: Shoumei Shashin | r35573 | 2026-05-12 |
| Kakurenbo ~Shin En x2 Jukubo Pack~ First Press Edition | r5854 | 2026-05-12 |
| Kakurenbo ~Futari Dake no Himitsu no Jikan~ Trial Edition | r34873 | 2026-05-15 |
| Kakurenbo ~Futari Dake no Himitsu no Jikan~ | r98573 | 2026-05-16 |
| Kakurenbo Gakuen | r21181 | 2026-05-06 |
| Kakoi ~Zetsubou no Shojo Kangokujima~ | r12306 | 2026-05-06 |
| Kakoi -Enclosure- | r64213 | 2026-04-21 |
| Kakoi - Trial Edition | r59938 | 2026-05-16 |
| Kakoi - Trial Edition | r30826 | 2026-05-16 |
| Kako no Koi - Pre-Alpha Demo | r26631 | 2026-04-21 |
| Kako no Koi | r37148 | 2026-04-21 |
| Kako no Ijime | r96626 | 2026-05-15 |
| Kakkoii Kotetsu-san wa Imasen! | r40336 | 2026-05-16 |
| Kakera Fandisc - First Press Edition | r33025 | 2026-05-06 |
| Kakenuke★Forward to Our Sparking Youth! - Mosaic Restoration Patch | r139668 | 2026-04-21 |
| Kakegurui H.E. [v0.04] | r126482 | 2026-04-21 |
| Kakegurui - Pervert Edition - v0.01 | r103618 | 2026-04-21 |
| Kakakku Adalah Guru Privatku~ | r144508 | 2026-04-21 |
| Kajuu Sentai ☆ Fruits Ranger - Trial Edition | r48894 | 2026-05-15 |
| Kajuu 100% | r116284 | 2026-05-07 |
| Kajiri Kamui Kagura Akebono no Hikari - First Press Limited Edition | r24667 | 2026-05-14 |