| Koibumi - Download Edition | r25090 | 2026-05-11 |
| Koibumi - Package Edition | r25091 | 2026-05-22 |
| Koibumi Romantica - Nigiyakashii Patch ver.1.4 | r144690 | 2026-05-30 |
| Koibumi Romantica - Trial Edition - Spring (First Half) Replacement Version | r23611 | 2026-05-06 |
| Koibumi Romantica - Trial Edition - Summer | r23613 | 2026-05-23 |
| Koichu! ~Koi ni Koisuru Kataomoi~ Trial Edition | r20535 | 2026-05-10 |
| Koigokoro | r61886 | 2026-05-22 |
| Koigokoro - First Press Limited Edition | r1297 | 2026-05-22 |
| Koigokoro ~Standard Edition~ | r1298 | 2026-05-22 |
| Koigoromo ~Mazu wa Kore Kite!~ | r5396 | 2026-05-22 |
| Koigoromo ~Mazu wa Kore Kite!~ Trial Edition | r38728 | 2026-06-07 |
| Koihana Bakumeiroku | r108502 | 2026-05-31 |
| Koihana Bakumeiroku | r96404 | 2026-05-16 |
| Koiharu Adolescence - Trial Edition | r36542 | 2026-05-21 |
| Koiharu Adolescence - Trial Edition Ver. 2 | r36695 | 2026-05-21 |
| Koihime - Windows 10 Edition | r53362 | 2026-05-22 |
| Koihime Musou ~A Heart-Throbbing, Maidenly Romance of the Three Kingdoms~ | r4188 | 2026-05-05 |
| Koihime Musou ~A Heart-Throbbing, Maidenly Romance of the Three Kingdoms~ Package Edition | r19795 | 2026-05-16 |
| Koihime Musou ~A Heart-Throbbing, Maidenly Romance of the Three Kingdoms~ Trial Edition | r9946 | 2026-05-24 |
| Koihime ~Mystic Princess~ | r42378 | 2026-05-19 |
| Koihime † Musou ~Doki ★ Otome Darake no Sangokushi Engi~ | r849 | 2026-05-22 |
| Koihime † Musou ~Doki ★ Otome Darake no Sangokushi Engi~ Download Edition | r78177 | 2026-05-22 |
| Koihime † Musou ~Doki ★ Otome Darake no Sangokushi Engi~ First Press Limited Edition | r2400 | 2026-05-30 |
| Koihime † Musou ~Doki ★ Otome Darake no Sangokushi Engi~ Regular Edition | r2399 | 2026-05-24 |
| Koihime † Musou ~Doki ★ Otome Darake no Sangokushi Engi~ Renewal Edition | r850 | 2026-05-22 |
| Koihime † Musou ~Doki ☆ Otome Darake no Sangokushi Engi~ | r23078 | 2026-05-24 |
| Koihime † Musou ~Doki ☆ Otome Darake no Sangokushi Engi~ | r25979 | 2026-05-22 |
| Koiimo SWEET☆DAYS - Download Edition | r25547 | 2026-05-20 |
| Koiimo SWEET☆DAYS - First Press Edition | r18266 | 2026-05-10 |
| Koiimo SWEET☆DAYS - Trial Edition | r20842 | 2026-05-22 |
| Koiiro Nyan★derful! | r100812 | 2026-06-11 |
| Koiiro Soramoyou - Download Edition | r35851 | 2026-06-02 |
| Koiiro Soramoyou - Regular Edition | r14479 | 2026-05-22 |
| Koiiro Soramoyou - Trial Edition | r5218 | 2026-05-10 |
| Koiiro Soramoyou: After Happiness and Extra Hearts - First Press Limited Edition | r10723 | 2026-06-02 |
| Koiiro no Enogu | r6731 | 2026-05-27 |
| Koiiro no Enogu - Special Edition | r30702 | 2026-05-22 |
| Koiji | r20165 | 2026-05-18 |
| Koijibashi - DVDPG | r8198 | 2026-05-16 |
| Koijibashi - Download Edition | r47724 | 2026-05-19 |
| Koijibashi - First Press Edition | r8196 | 2026-05-09 |
| Koijibashi - Regular Edition | r8197 | 2026-05-24 |
| Koikari: Love for Hire - After Hours - Mosaic Restoration Patch | r144538 | 2026-05-11 |
| Koikata: How Our Love Grows | r151692 | 2026-05-10 |
| Koikata: How Our Love Grows | r147768 | 2026-05-10 |
| Koikata: How Our Love Grows - Censored Edition | r147804 | 2026-05-23 |
| Koiken Otome | r26985 | 2026-05-18 |
| Koiken Otome - Download Edition | r26801 | 2026-05-22 |
| Koiken Otome - First Press Limited Edition | r21490 | 2026-05-11 |
| Koiken Otome - Trial Edition | r24112 | 2026-05-22 |